Page last updated: 2024-10-24

renal absorption

Definition

Target type: biologicalprocess

A renal system process in which water, ions, glucose and proteins are taken up from the collecting ducts, glomerulus and proximal and distal loops of the nephron. In non-mammalian species, absorption may occur in related structures (e.g. protein absorption is observed in nephrocytes in Drosophila, see PMID:23264686). [GOC:dph, GOC:mah, GOC:yaf]

Renal absorption is a complex process by which the kidneys selectively reabsorb essential substances from the glomerular filtrate back into the bloodstream. This process is crucial for maintaining fluid and electrolyte balance, removing waste products, and conserving vital nutrients. The glomerular filtration process forms a filtrate containing water, electrolytes, glucose, amino acids, and other small molecules, which is then transported through the renal tubules. Along the tubules, specific transporters and channels mediate the reabsorption of various substances back into the bloodstream.

The proximal convoluted tubule (PCT) is the primary site for reabsorption of most essential substances, including glucose, amino acids, sodium, water, and bicarbonate. Sodium reabsorption in the PCT drives the reabsorption of water and other solutes via various mechanisms, including the sodium-glucose cotransporter (SGLT), sodium-hydrogen exchanger (NHE), and sodium-potassium ATPase (Na+/K+ ATPase). Glucose is reabsorbed via the SGLT, which couples glucose transport with sodium transport. Amino acids are reabsorbed through specialized amino acid transporters. Bicarbonate reabsorption is critical for maintaining blood pH and occurs via the sodium-bicarbonate cotransporter (NBC). Water reabsorption in the PCT is largely passive, driven by the osmotic gradient created by sodium reabsorption.

The loop of Henle is responsible for creating a concentration gradient in the renal medulla, which is essential for water reabsorption in the collecting duct. In the descending limb of the loop of Henle, water reabsorption is passive, driven by the hyperosmolarity of the renal medulla. In the ascending limb, sodium and chloride ions are actively reabsorbed, creating a hypotonic filtrate.

The distal convoluted tubule (DCT) fine-tunes the reabsorption of sodium, chloride, and calcium. The DCT contains sodium-chloride cotransporters (NCC) and calcium channels, which regulate the reabsorption of these ions. The DCT also plays a role in potassium secretion.

The collecting duct is the final site for water reabsorption and plays a crucial role in regulating urine concentration. Antidiuretic hormone (ADH) regulates water reabsorption in the collecting duct by increasing the permeability of the duct to water. The collecting duct also contains sodium channels that are regulated by aldosterone, a hormone that increases sodium reabsorption and potassium secretion.

The process of renal absorption is tightly regulated by various hormones, including aldosterone, ADH, and parathyroid hormone (PTH), ensuring the body maintains homeostasis and eliminates waste products efficiently.'
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Proteins (4)

ProteinDefinitionTaxonomy
Solute carrier family 15 member 2A solute carrier family 15 member 2 that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q16348]Homo sapiens (human)
Potassium voltage-gated channel subfamily KQT member 1A voltage-gated potassium channel subunit KCNQ1 that is encoded in the genome of human. [PRO:CNA, UniProtKB:P51787]Homo sapiens (human)
Aldo-keto reductase family 1 member C3An aldo-keto reductase family 1 member C3 that is encoded in the genome of human. [PRO:DNx, UniProtKB:P42330]Homo sapiens (human)
Na(+)/H(+) exchange regulatory cofactor NHE-RF1A Na(+)/H(+) exchange regulatory cofactor NHE-RF1 that is encoded in the genome of human. [PRO:CNA, UniProtKB:O14745]Homo sapiens (human)

Compounds (130)

CompoundDefinitionClassesRoles
N-(2-aminoethyl)-5-chloro-1-naphthalenesulfonamidenaphthalenes;
sulfonic acid derivative
alfuzosinalfuzosin: structure given in first sourcemonocarboxylic acid amide;
quinazolines;
tetrahydrofuranol
alpha-adrenergic antagonist;
antihypertensive agent;
antineoplastic agent
berberinealkaloid antibiotic;
berberine alkaloid;
botanical anti-fungal agent;
organic heteropentacyclic compound
antilipemic drug;
antineoplastic agent;
antioxidant;
EC 1.1.1.141 [15-hydroxyprostaglandin dehydrogenase (NAD(+))] inhibitor;
EC 1.1.1.21 (aldehyde reductase) inhibitor;
EC 1.13.11.52 (indoleamine 2,3-dioxygenase) inhibitor;
EC 1.21.3.3 (reticuline oxidase) inhibitor;
EC 2.1.1.116 [3'-hydroxy-N-methyl-(S)-coclaurine 4'-O-methyltransferase] inhibitor;
EC 2.1.1.122 [(S)-tetrahydroprotoberberine N-methyltransferase] inhibitor;
EC 2.7.11.10 (IkappaB kinase) inhibitor;
EC 3.1.1.4 (phospholipase A2) inhibitor;
EC 3.1.1.7 (acetylcholinesterase) inhibitor;
EC 3.1.1.8 (cholinesterase) inhibitor;
EC 3.1.3.48 (protein-tyrosine-phosphatase) inhibitor;
EC 3.4.14.5 (dipeptidyl-peptidase IV) inhibitor;
EC 3.4.21.26 (prolyl oligopeptidase) inhibitor;
geroprotector;
hypoglycemic agent;
metabolite;
potassium channel blocker
flufenamic acidflufenamic acid : An aromatic amino acid consisting of anthranilic acid carrying an N-(trifluoromethyl)phenyl substituent. An analgesic and anti-inflammatory, it is used in rheumatic disorders.

Flufenamic Acid: An anthranilic acid derivative with analgesic, anti-inflammatory, and antipyretic properties. It is used in musculoskeletal and joint disorders and administered by mouth and topically. (From Martindale, The Extra Pharmacopoeia, 30th ed, p16)
aromatic amino acid;
organofluorine compound
antipyretic;
EC 1.14.99.1 (prostaglandin-endoperoxide synthase) inhibitor;
non-narcotic analgesic;
non-steroidal anti-inflammatory drug
flurbiprofenflurbiprofen : A monocarboxylic acid that is a 2-fluoro-[1,1'-biphenyl-4-yl] moiety linked to C-2 of propionic acid. A non-steroidal anti-inflammatory, analgesic and antipyretic, it is used as a pre-operative anti-miotic as well as orally for arthritis or dental pain.

Flurbiprofen: An anti-inflammatory analgesic and antipyretic of the phenylalkynoic acid series. It has been shown to reduce bone resorption in periodontal disease by inhibiting CARBONIC ANHYDRASE.
fluorobiphenyl;
monocarboxylic acid
antipyretic;
EC 1.14.99.1 (prostaglandin-endoperoxide synthase) inhibitor;
non-narcotic analgesic;
non-steroidal anti-inflammatory drug
gliclazideGliclazide: An oral sulfonylurea hypoglycemic agent which stimulates insulin secretion.N-sulfonylureahypoglycemic agent;
insulin secretagogue;
radical scavenger
glimepirideglimepiride: structure given in first sourcesulfonamide
ibuprofenMidol: combination of cinnamedrine, phenacetin, aspirin & caffeinemonocarboxylic acidantipyretic;
cyclooxygenase 1 inhibitor;
cyclooxygenase 2 inhibitor;
drug allergen;
environmental contaminant;
geroprotector;
non-narcotic analgesic;
non-steroidal anti-inflammatory drug;
radical scavenger;
xenobiotic
indomethacinindometacin : A member of the class of indole-3-acetic acids that is indole-3-acetic acid in which the indole ring is substituted at positions 1, 2 and 5 by p-chlorobenzoyl, methyl, and methoxy groups, respectively. A non-steroidal anti-inflammatory drug, it is used in the treatment of musculoskeletal and joint disorders including osteoarthritis, rheumatoid arthritis, gout, bursitis and tendinitis.

Indomethacin: A non-steroidal anti-inflammatory agent (NSAID) that inhibits CYCLOOXYGENASE, which is necessary for the formation of PROSTAGLANDINS and other AUTACOIDS. It also inhibits the motility of POLYMORPHONUCLEAR LEUKOCYTES.
aromatic ether;
indole-3-acetic acids;
monochlorobenzenes;
N-acylindole
analgesic;
drug metabolite;
EC 1.14.99.1 (prostaglandin-endoperoxide synthase) inhibitor;
environmental contaminant;
gout suppressant;
non-steroidal anti-inflammatory drug;
xenobiotic;
xenobiotic metabolite
lamotrigine1,2,4-triazines;
dichlorobenzene;
primary arylamine
anticonvulsant;
antidepressant;
antimanic drug;
calcium channel blocker;
EC 3.4.21.26 (prolyl oligopeptidase) inhibitor;
environmental contaminant;
excitatory amino acid antagonist;
geroprotector;
non-narcotic analgesic;
xenobiotic
meclofenamic acidmeclofenamic acid : An aminobenzoic acid that is anthranilic acid in which one of the hydrogens attached to the nitrogen is replaced by a 2,6-dichloro-3-methylphenyl group. A non-steroidal anti-inflammatory drug, it is used as the sodium salt for the treatment of dysmenorrhoea (painful periods), osteoarthritis and rheumatoid arthritis.

Meclofenamic Acid: A non-steroidal anti-inflammatory agent with antipyretic and antigranulation activities. It also inhibits prostaglandin biosynthesis.
aminobenzoic acid;
organochlorine compound;
secondary amino compound
analgesic;
anticonvulsant;
antineoplastic agent;
antipyretic;
antirheumatic drug;
EC 1.13.11.34 (arachidonate 5-lipoxygenase) inhibitor;
EC 1.14.99.1 (prostaglandin-endoperoxide synthase) inhibitor;
non-steroidal anti-inflammatory drug
mefenamic acidmefenamic acid : An aminobenzoic acid that is anthranilic acid in which one of the hydrogens attached to the nitrogen is replaced by a 2,3-dimethylphenyl group. Although classed as a non-steroidal anti-inflammatory drug, its anti-inflammatory properties are considered to be minor. It is used to relieve mild to moderate pain, including headaches, dental pain, osteoarthritis and rheumatoid arthritis.

Mefenamic Acid: A non-steroidal anti-inflammatory agent with analgesic, anti-inflammatory, and antipyretic properties. It is an inhibitor of cyclooxygenase.
aminobenzoic acid;
secondary amino compound
analgesic;
antipyretic;
antirheumatic drug;
EC 1.14.99.1 (prostaglandin-endoperoxide synthase) inhibitor;
environmental contaminant;
non-steroidal anti-inflammatory drug;
xenobiotic
fenamic acidfenamic acid : An aminobenzoic acid that is the N-phenyl derivative of anthranilic acid. It acts as a parent skeleton for the synthesis of several non-steroidal anti-inflammatory drugs.

fenamic acid: has chloride and potassium channel-blocking activity; RN given refers to parent cpd
aminobenzoic acid;
secondary amino compound
membrane transport modulator
cephaloridinecefaloridine : A cephalosporin compound having pyridinium-1-ylmethyl and 2-thienylacetamido side-groups. A first-generation semisynthetic derivative of cephalosporin C.

Cephaloridine: A cephalosporin antibiotic.
beta-lactam antibiotic allergen;
cephalosporin;
semisynthetic derivative
antibacterial drug
penicillin gbenzylpenicillin : A penicillin in which the substituent at position 6 of the penam ring is a phenylacetamido group.

Penicillin G: A penicillin derivative commonly used in the form of its sodium or potassium salts in the treatment of a variety of infections. It is effective against most gram-positive bacteria and against gram-negative cocci. It has also been used as an experimental convulsant because of its actions on GAMMA-AMINOBUTYRIC ACID mediated synaptic transmission.
penicillin;
penicillin allergen
antibacterial drug;
drug allergen;
epitope
cephalothincefalotin : A semisynthetic, first-generation cephalosporin antibiotic with acetoxymethyl and (2-thienylacetyl)nitrilo moieties at positions 3 and 7, respectively, of the core structure. Administered parenterally during surgery and to treat a wide spectrum of blood infections.

Cephalothin: A cephalosporin antibiotic.
azabicycloalkene;
beta-lactam antibiotic allergen;
carboxylic acid;
cephalosporin;
semisynthetic derivative;
thiophenes
antibacterial drug;
antimicrobial agent
cloxacillincloxacillin : A semisynthetic penicillin antibiotic carrying a 3-(2-chlorophenyl)-5-methylisoxazole-4-carboxamido group at position 6.

Cloxacillin: A semi-synthetic antibiotic that is a chlorinated derivative of OXACILLIN.
penicillin;
penicillin allergen;
semisynthetic derivative
antibacterial agent;
antibacterial drug
oxacillinoxacillin : A penicillin antibiotic carrying a 5-methyl-3-phenylisoxazole-4-carboxamide group at position 6beta.

Oxacillin: An antibiotic similar to FLUCLOXACILLIN used in resistant staphylococci infections.
penicillinantibacterial agent;
antibacterial drug
ampicillinampicillin : A penicillin in which the substituent at position 6 of the penam ring is a 2-amino-2-phenylacetamido group.

Ampicillin: Semi-synthetic derivative of penicillin that functions as an orally active broad-spectrum antibiotic.
beta-lactam antibiotic;
penicillin;
penicillin allergen
antibacterial drug
medroxyprogesterone acetate20-oxo steroid;
3-oxo-Delta(4) steroid;
acetate ester;
corticosteroid;
steroid ester
adjuvant;
androgen;
antineoplastic agent;
antioxidant;
female contraceptive drug;
inhibitor;
progestin;
synthetic oral contraceptive
benzoic anhydride2-benzoylbenzoic acid: structure in first source
3,5-dichlorosalicylic acid3,5-dichlorosalicylic acid: structure in first sourcechlorobenzoic acid
glycylglycinedipeptide;
dipeptide zwitterion
human metabolite
levulinic acid4-oxopentanoic acid : An oxopentanoic acid with the oxo group in the 4-position.

levulinic acid: inhibits 5-aminolevulinic acid dehydratase; RN given refers to parent cpd; structure in Merck Index, 9th ed, #5316
oxopentanoic acid;
straight-chain saturated fatty acid
plant metabolite
dicloxacillindicloxacillin : A penicillin that is 6-aminopenicillanic acid in which one of the amino hydrogens is replaced by a 3-(2,6-dichlorophenyl)-5-methyl-1,2-oxazol-4-yl]formyl group.

Dicloxacillin: One of the PENICILLINS which is resistant to PENICILLINASE.
dichlorobenzene;
penicillin
antibacterial drug
3,5-dibromosalicylic acid3,5-dibromosalicylic acid: structure in first source
cyclacillinCyclacillin: A cyclohexylamido analog of PENICILLANIC ACID.penicillinantibacterial drug
3-phenoxybenzoic acid3-phenoxybenzoic acid : A phenoxybenzoic acid in which the phenoxy group is meta to the carboxy group. It is a metabolite of pyrethroid insecticides.

3-phenoxybenzoic acid: metabolite associated with exposure to pyrethroid insecticides
phenoxybenzoic acidhuman xenobiotic metabolite;
marine xenobiotic metabolite
cephalexincephalexin : A semisynthetic first-generation cephalosporin antibiotic having methyl and beta-(2R)-2-amino-2-phenylacetamido groups at the 3- and 7- of the cephem skeleton, respectively. It is effective against both Gram-negative and Gram-positive organisms, and is used for treatment of infections of the skin, respiratory tract and urinary tract.

Cephalexin: A semisynthetic cephalosporin antibiotic with antimicrobial activity similar to that of CEPHALORIDINE or CEPHALOTHIN, but somewhat less potent. It is effective against both gram-positive and gram-negative organisms.
beta-lactam antibiotic allergen;
cephalosporin;
semisynthetic derivative
antibacterial drug
6-methoxy-2-naphthylacetic acid(6-methoxy-2-naphthyl)acetic acid : A monocarboxylic acid consisting of 2-naphthylacetic acid having a methoxy substituent at the 6-position. The active metabolite of the prodrug nabumetone.

6-methoxy-2-naphthylacetic acid: major metabolite of nabumetone; inhibits cyclooxygenase-2 (COX-2)
methoxynaphthalene;
monocarboxylic acid
drug metabolite;
EC 1.14.99.1 (prostaglandin-endoperoxide synthase) inhibitor;
xenobiotic metabolite
amoxicillinamoxicillin : A penicillin in which the substituent at position 6 of the penam ring is a 2-amino-2-(4-hydroxyphenyl)acetamido group.

Amoxicillin: A broad-spectrum semisynthetic antibiotic similar to AMPICILLIN except that its resistance to gastric acid permits higher serum levels with oral administration.
penicillin;
penicillin allergen
antibacterial drug
dexibuprofendexibuprofen: structure in first sourceibuprofennon-narcotic analgesic;
non-steroidal anti-inflammatory drug
cefmetazolecefmetazole : A second-generation cephalosporin antibiotic having N(1)-methyltetrazol-5-ylthiomethyl, {[(cyanomethyl)sulfanyl]acetyl}amino and methoxy side-groups at positions 3, 7beta and 7alpha respectively of the parent cephem bicyclic structure.

Cefmetazole: A semisynthetic cephamycin antibiotic with a broad spectrum of activity against both gram-positive and gram-negative microorganisms. It has a high rate of efficacy in many types of infection and to date no severe side effects have been noted.
cephalosporinantibacterial drug
cefadroxil anhydrouscefadroxil : A cephalosporin bearing methyl and (2R)-2-amino-2-(4-hydroxyphenyl)acetamido groups at positions 3 and 7, respectively, of the cephem skeleton.

Cefadroxil: Long-acting, broad-spectrum, water-soluble, CEPHALEXIN derivative.
cephalosporinantibacterial drug
cefaclor anhydrouscefaclor : A cephalosporin bearing chloro and (R)-2-amino-2-phenylacetamido groups at positions 3 and 7, respectively, of the cephem skeleton.

Cefaclor: Semisynthetic, broad-spectrum antibiotic derivative of CEPHALEXIN.
cephalosporinantibacterial drug;
drug allergen
duloxetineduloxetine
octyl gallategallate esterfood antioxidant;
hypoglycemic agent;
plant metabolite
nelfinavirnelfinavir : An aryl sulfide that is used (as its mesylate salt) for treatment of HIV and also exhibits some anticancer properties.

Nelfinavir: A potent HIV protease inhibitor. It is used in combination with other antiviral drugs in the treatment of HIV in both adults and children.
aryl sulfide;
benzamides;
organic heterobicyclic compound;
phenols;
secondary alcohol;
tertiary amino compound
antineoplastic agent;
HIV protease inhibitor
4-methoxybenzophenone4-methoxybenzophenone: structure in first source
leucyl-glycyl-glycineLeu-Gly-Gly : A tripeptide composed of one L-leucine and two glycine residues joined in sequence.

leucyl-glycyl-glycine: RN given refers to (L-Leu)-isomer
tripeptidemetabolite
nebivolol2,2'-iminobis[1-(6-fluoro-3,4-dihydro-2H-chromen-2-yl)ethanol] : A member of the class of chromanes that is 2,2'-iminodiethanol in which one hydrogen attached to each hydroxy-bearing carbon is replaced by a 6-fluorochroman-2-yl group.chromanes;
diol;
organofluorine compound;
secondary alcohol;
secondary amino compound
uk 68798aromatic ether;
sulfonamide;
tertiary amino compound
anti-arrhythmia drug;
potassium channel blocker
doripenemDoripenem: A carbapenem derivative antibacterial agent that is more stable to renal dehydropeptidase I than IMIPENEM, but does not need to be given with an enzyme inhibitor such as CILASTATIN. It is used in the treatment of infections such as HOSPITAL-ACQUIRED PNEUMONIA, and complicated intra-abdominal or urinary-tract infections, including PYELONEPHRITIS.carbapenems
glycyl-histidyl-lysineGly-His-Lys : A tripeptide composed of glycine, L-histidine and L-lysine residues joined in sequence.

glycyl-histidyl-lysine: found in human plasma; promotes proliferation of hepatoma cells, lymphocytes & mycoplsma; maintains viability of hepatocytes, eosinophils and macrophages; inhibits growth of glial cells; RN given refers to (L)-isomer
tripeptidechelator;
hepatoprotective agent;
metabolite;
vulnerary
5-methoxy-methylindoleacetic acid5-methoxy-methylindoleacetic acid: structure given in first sourceindole-3-acetic acids
alanylprolinealanylproline: RN given refers to all (L)-isomerdipeptide;
dipeptide zwitterion
metabolite
Trp-TrpTrp-Trp : A dipeptide formed from two L-tryptophan residues.

tryptophyltryptophan: an antigelation agent
dipeptideMycoplasma genitalium metabolite
glycylsarcosineglycylsarcosine : A dipeptide obtained by formal condensation of the carboxy group of glycine with the amino group of sarcosine.dipeptide;
dipeptide zwitterion
prolyl-glycyl-glycineprolyl-glycyl-glycine: structure given in first sourceoligopeptide
tadalafilbenzodioxoles;
pyrazinopyridoindole
EC 3.1.4.35 (3',5'-cyclic-GMP phosphodiesterase) inhibitor;
vasodilator agent
paliperidone3-{2-[4-(6-fluoro-1,2-benzoxazol-3-yl)piperidin-1-yl]ethyl}-9-hydroxy-2-methyl-6,7,8,9-tetrahydropyrido[1,2-a]pyrimidin-4-one : A member of the class of pyridopyrimidines that is 9-hydroxy-2-methyl-6,7,8,9-tetrahydropyrido[1,2-a]pyrimidin-4-one carrying an additional 2-[4-(6-fluoro-1,2-benzoxazol-3-yl)piperidin-1-yl]ethyl group at position 2.

paliperidone : A racemate comprising equimolar amounts of (R)- and (S)-paliperidone. Paliperidone is the primary active metabolite of the older antipsychotic risperidone and is used for treatment of schizophrenia.
1,2-benzoxazoles;
heteroarylpiperidine;
organofluorine compound;
pyridopyrimidine;
secondary alcohol
293b cpd6-cyano-4-(N-ethylsulfonyl-N-methylamino)-3-hydroxy-2,2-dimethylchromane: RN given for (trans-(+-))-isomer1-benzopyran
moxifloxacinmoxifloxacin : A quinolone that consists of 4-oxo-1,4-dihydroquinoline-3-carboxylic acid bearing a cyclopropyl substituent at position 1, a fluoro substitiuent at position 6, a (4aS,7aS)-octahydro-6H-pyrrolo[3,4-b]pyridin-6-yl group at position 7 and a methoxy substituent at position 8. A member of the fluoroquinolone class of antibacterial agents.

Moxifloxacin: A fluoroquinolone that acts as an inhibitor of DNA TOPOISOMERASE II and is used as a broad-spectrum antibacterial agent.
aromatic ether;
cyclopropanes;
fluoroquinolone antibiotic;
pyrrolidinopiperidine;
quinolinemonocarboxylic acid;
quinolone;
quinolone antibiotic
antibacterial drug
solifenacinisoquinolines
naproxennaproxen : A methoxynaphthalene that is 2-methoxynaphthalene substituted by a carboxy ethyl group at position 6. Naproxen is a non-steroidal anti-inflammatory drug commonly used for the reduction of pain, fever, inflammation and stiffness caused by conditions such as osteoarthritis, kidney stones, rheumatoid arthritis, psoriatic arthritis, gout, ankylosing spondylitis, menstrual cramps, tendinitis, bursitis, and for the treatment of primary dysmenorrhea. It works by inhibiting both the COX-1 and COX-2 enzymes.

Naproxen: An anti-inflammatory agent with analgesic and antipyretic properties. Both the acid and its sodium salt are used in the treatment of rheumatoid arthritis and other rheumatic or musculoskeletal disorders, dysmenorrhea, and acute gout.
methoxynaphthalene;
monocarboxylic acid
antipyretic;
cyclooxygenase 1 inhibitor;
cyclooxygenase 2 inhibitor;
drug allergen;
environmental contaminant;
gout suppressant;
non-narcotic analgesic;
non-steroidal anti-inflammatory drug;
xenobiotic
telbivudinepyrimidine 2'-deoxyribonucleosideantiviral drug;
EC 2.7.7.49 (RNA-directed DNA polymerase) inhibitor
2'-hydroxyflavanone
etravirineaminopyrimidine;
aromatic ether;
dinitrile;
organobromine compound
antiviral agent;
HIV-1 reverse transcriptase inhibitor
prolylglutamic acidPro-Glu : A dipeptide formed from L-proline and L-glutamic acid residues.dipeptidemetabolite
lapatinibfurans;
organochlorine compound;
organofluorine compound;
quinazolines
antineoplastic agent;
tyrosine kinase inhibitor
darunavirdarunavir : An N,N-disubstituted benzenesulfonamide bearing an unsubstituted amino group at the 4-position, used for the treatment of HIV infection. A second-generation HIV protease inhibitor, darunavir was designed to form robust interactions with the protease enzyme from many strains of HIV, including those from treatment-experienced patients with multiple resistance mutations to other protease inhibitors.

Darunavir: An HIV PROTEASE INHIBITOR that is used in the treatment of AIDS and HIV INFECTIONS. Due to the emergence of ANTIVIRAL DRUG RESISTANCE when used alone, it is administered in combination with other ANTI-HIV AGENTS.
carbamate ester;
furofuran;
sulfonamide
antiviral drug;
HIV protease inhibitor
senicapocsenicapoc: a Gardos channel blocker; structure in first source
lacosamideLacosamide: An acetamide derivative that acts as a blocker of VOLTAGE-GATED SODIUM CHANNELS. It is used as an anticonvulsant, for adjunctive or monotherapy, in the treatment of PARTIAL SEIZURES.N-acyl-amino acid
carnosinepolaprezinc: stimulates bone growthamino acid zwitterion;
dipeptide
anticonvulsant;
antineoplastic agent;
antioxidant;
Daphnia magna metabolite;
geroprotector;
human metabolite;
mouse metabolite;
neuroprotective agent
cysteinylglycinecysteinylglycine: RN given refers to (L)-isomer; RN for cpd without isomeric designation not in Chemlne 7/13/83

L-cysteinylglycine : A dipeptide consisting of glycine having an L-cysteinyl attached to its alpha-amino group. It is an intermediate metabolite in glutathione metabolism.
dipeptide;
dipeptide zwitterion
Escherichia coli metabolite;
human metabolite;
Saccharomyces cerevisiae metabolite
tolterodinetertiary amineantispasmodic drug;
muscarinic antagonist;
muscle relaxant
darifenacindarifenacin : 2-[(3S)-1-Ethylpyrrolidin-3-yl]-2,2-diphenylacetamide in which one of the hydrogens at the 2-position of the ethyl group is substituted by a 2,3-dihydro-1-benzofuran-5-yl group. It is a selective antagonist for the M3 muscarinic acetylcholine receptor, which is primarily responsible for bladder muscle contractions, and is used as the hydrobromide salt in the management of urinary incontinence.1-benzofurans;
monocarboxylic acid amide;
pyrrolidines
antispasmodic drug;
muscarinic antagonist
cefamandolecefamandole : A cephalosporin compound having (R)-mandelamido and N-methylthiotetrazole side-groups.

Cefamandole: Semisynthetic wide-spectrum cephalosporin with prolonged action, probably due to beta-lactamase resistance. It is used also as the nafate.
cephalosporin;
semisynthetic derivative
antibacterial drug
aspartyl-aspartic acidAsp-Asp : A dipeptide formed from two L-aspartic acid units.

aspartyl-aspartic acid: do not confuse with cyclo(Asp-Asp)
dipeptideMycoplasma genitalium metabolite
tolfenamic acidtolfenamic acid : An aminobenzoic acid that is anthranilic acid in which one of the hydrogens attached to the nitrogen is replaced by a 3-chloro-2-methylphenyl group. Tolfenamic acid is used specifically for relieving the pain of migraine. It also shows anticancer activity.

tolfenamic acid: structure
aminobenzoic acid;
organochlorine compound;
secondary amino compound
EC 1.14.99.1 (prostaglandin-endoperoxide synthase) inhibitor;
EC 2.7.1.33 (pantothenate kinase) inhibitor;
non-narcotic analgesic;
non-steroidal anti-inflammatory drug
s 1033(trifluoromethyl)benzenes;
imidazoles;
pyridines;
pyrimidines;
secondary amino compound;
secondary carboxamide
anticoronaviral agent;
antineoplastic agent;
tyrosine kinase inhibitor
n-glycylalanineGly-Ala : A dipeptide formed from glycine and L-alanine residues.dipeptidemetabolite
maraviroctropane alkaloid
dasatinibdasatinib (anhydrous) : An aminopyrimidine that is 2-methylpyrimidine which is substituted at position 4 by the primary amino group of 2-amino-1,3-thiazole-5-carboxylic acid and at position 6 by a 4-(2-hydroxyethyl)piperazin-1-yl group, and in which the carboxylic acid group has been formally condensed with 2-chloro-6-methylaniline to afford the corresponding amide. A multi-targeted kinase inhibitor, it is used, particularly as the monohydrate, for the treatment of chronic, accelerated, or myeloid or lymphoid blast phase chronic myeloid leukemia. Note that the name 'dasatinib' is used to refer to the monohydrate (USAN) as well as to anhydrous dasatinib (INN).

N-(2-chloro-6-methylphenyl)-2-((6-(4-(2-hydroxyethyl)piperazin-1-yl)-2-methylpyrimidin-4-yl)amino)-1,3-thiazole-5-carboxamide: a dasatinib prodrug; structure in first source
1,3-thiazoles;
aminopyrimidine;
monocarboxylic acid amide;
N-(2-hydroxyethyl)piperazine;
N-arylpiperazine;
organochlorine compound;
secondary amino compound;
tertiary amino compound
anticoronaviral agent;
antineoplastic agent;
tyrosine kinase inhibitor
trimethionineoligopeptide
fh535FH535: inhibits Wnt signalingsulfonamide
n-(6-chloropyridin-3-yl)-4-fluorobenzamideN-(6-chloropyridin-3-yl)-4-fluorobenzamide: structure in first source
sitagliptinsitagliptin : A triazolopyrazine that exhibits hypoglycemic activity.triazolopyrazine;
trifluorobenzene
EC 3.4.14.5 (dipeptidyl-peptidase IV) inhibitor;
environmental contaminant;
hypoglycemic agent;
serine proteinase inhibitor;
xenobiotic
diclofenac sodiumdiclofenac sodium : The sodium salt of diclofenac.

Diclofenac Sodium: The sodium form of DICLOFENAC. It is used for its analgesic and anti-inflammatory properties.
organic sodium salt
acacetin5,7-dihydroxy-4'-methoxyflavone : A monomethoxyflavone that is the 4'-methyl ether derivative of apigenin.dihydroxyflavone;
monomethoxyflavone
anticonvulsant;
plant metabolite
linoleic acidlinoleic acid : An octadecadienoic acid in which the two double bonds are at positions 9 and 12 and have Z (cis) stereochemistry.

Linoleic Acid: A doubly unsaturated fatty acid, occurring widely in plant glycosides. It is an essential fatty acid in mammalian nutrition and is used in the biosynthesis of prostaglandins and cell membranes. (From Stedman, 26th ed)
octadecadienoic acid;
omega-6 fatty acid
algal metabolite;
Daphnia galeata metabolite;
plant metabolite
jasmonic acidjasmonic acid : An oxo monocarboxylic acid that is (3-oxocyclopentyl)acetic acid substituted by a (2Z)-pent-2-en-1-yl group at position 2 of the cyclopentane ring.

jasmonic acid: a derivative of alpha-linolenic acid that has a role in plant response to herbivory analogous to the role of prostanoids in inflammation in mammals;
oxo monocarboxylic acidjasmonates;
plant metabolite
caffeic acid phenethyl esterphenethyl caffeate : An alkyl caffeate ester in which 2-phenylethyl is the alkyl component.alkyl caffeate esteranti-inflammatory agent;
antibacterial agent;
antineoplastic agent;
antioxidant;
antiviral agent;
immunomodulator;
metabolite;
neuroprotective agent
7432 sceftibuten : A third-generation cephalosporin antibiotic with a [(2Z)-2-(2-amino-1,3-thiazol-4-yl)-4-carboxybut-2-enoyl]amino substituent at the 7 position of the cephem skeleton. An orally-administered agent, ceftibuten is used as the dihydrate to treat urinary-tract and respiratory-tract infections.

Ceftibuten: A cephalosporin antibacterial agent that is used in the treatment of infections, including urinary-tract and respiratory-tract infections.
cephalosporin;
dicarboxylic acid
antibacterial drug
mdl 100907Serotonin 5-HT2 Receptor Antagonists: Drugs that bind to but do not activate SEROTONIN 5-HT2 RECEPTORS, thereby blocking the actions of SEROTONIN or SEROTONIN 5-HT2 RECEPTOR AGONISTS. Included under this heading are antagonists for one or more specific 5-HT2 receptor subtypes.
silodosinsilodosin: an alpha(1a)-adrenoceptor-selective antagonist; structure given in first sourceindolecarboxamide
tazettinetazettine: from Amaryllidaceaeindole alkaloid;
indole alkaloid fundamental parent
su 11248monocarboxylic acid amide;
pyrroles
angiogenesis inhibitor;
antineoplastic agent;
EC 2.7.10.1 (receptor protein-tyrosine kinase) inhibitor;
immunomodulator;
neuroprotective agent;
vascular endothelial growth factor receptor antagonist
cefodizimecefodizime : A cephalosporin compound having 5-(carboxymethyl)-4-methyl-1,3-thiazol-2-yl]sulfanyl}methyl and [2-(2-amino-1,3-thiazol-4-yl)-2-(methoxyimino)acetyl]amino side groups located at positions 3 and 7 respectively.

cefodizime: RN given refers to (6R-(6alpha,7beta(Z)))-isomer
1,3-thiazoles;
cephalosporin;
oxime O-ether
antibacterial drug;
EC 1.14.18.1 (tyrosinase) inhibitor
cefiximecephalosporinantibacterial drug;
drug allergen
artepillin cartepillin C: RN refers to (E)-isomer
alanyl-alanyl-alanineAla-Ala-Ala : A tripeptide composed of three L-alanine units joined by peptide linkages.

alanyl-alanyl-alanine: RN given refers to all (L)-isomer
tripeptidemetabolite
cefuroxime3-(carbamoyloxymethyl)cephalosporin;
furans;
oxime O-ether
drug allergen
cefepimecefepime : A cephalosporin bearing (1-methylpyrrolidinium-1-yl)methyl and (2Z)-2-(2-amino-1,3-thiazol-4-yl)-2-(methoxyimino)acetamido groups at positions 3 and 7, respectively, of the cephem skeleton.

Cefepime: A fourth-generation cephalosporin antibacterial agent that is used in the treatment of infections, including those of the abdomen, urinary tract, respiratory tract, and skin. It is effective against PSEUDOMONAS AERUGINOSA and may also be used in the empiric treatment of FEBRILE NEUTROPENIA.
cephalosporin;
oxime O-ether
antibacterial drug
alanylalanineL-alanyl-L-alanine : A dipeptide consisting of two L-alanine units joined by a peptide linkage.dipeptide;
dipeptide zwitterion
Mycoplasma genitalium metabolite
phenylalanylalaninePhe-Ala : A dipeptide formed from L-phenylalanine and L-alanine residues.

phenylalanylalanine: RN given refers to (L)-isomer
dipeptide;
dipeptide zwitterion
metabolite
alvimopan anhydrousalvimopan: mu opioid receptor antagonist; intended to treat constipation in patients taking opiates for painpeptide
alanyltyrosineTyr-Ala : A dipeptide formed from L-tyrosine and L-alanine residues.dipeptidemetabolite
cefotaximecefotaxime : A cephalosporin compound having acetoxymethyl and [2-(2-amino-1,3-thiazol-4-yl)-2-(methoxyimino)acetyl]amino side groups.

Cefotaxime: Semisynthetic broad-spectrum cephalosporin.
1,3-thiazoles;
cephalosporin;
oxime O-ether
antibacterial drug;
drug allergen
cefpodoximecarboxylic acid;
cephalosporin
antibacterial drug
palonosetronpalonosetron : An organic heterotricyclic compound that is an antiemetic used (as its hydrochloride salt) in combination with netupitant (under the trade name Akynzeo) to treat nausea and vomiting in patients undergoing cancer chemotherapy.

Palonosetron: Isoquinoline and quinuclidine derivative that acts as a 5-HT3 RECEPTOR antagonist. It is used in the prevention of nausea and vomiting induced by cytotoxic chemotherapy, and for the prevention of post-operative nausea and vomiting.
azabicycloalkane;
delta-lactam;
organic heterotricyclic compound
antiemetic;
serotonergic antagonist
aspartyllysineAsp-Lys : A dipeptide formed from L-alpha-aspartyl and L-lysine residues.

aspartyllysine: from feces of axenic mice
dipeptidemetabolite
drupaninDrupanin: anti-oxidant and anti-cancer; structure in first source
everolimuscyclic acetal;
cyclic ketone;
ether;
macrolide lactam;
primary alcohol;
secondary alcohol
anticoronaviral agent;
antineoplastic agent;
geroprotector;
immunosuppressive agent;
mTOR inhibitor
6-cyano-4-(n-ethylsulfonyl-n-methylamino)-3-hydroxy-2,2-dimethylchromane, (trans-(+))-isomer
methampicillinmetampicillin : A penicillin compound having a 6beta-(2R)-2-(methylideneamino)-2-phenylacetamido side-group.

methampicillin: RN given refers to parent cpd(2S-(2alpha,5alpha,6beta(S*)))-isomer
penicillin;
penicillin allergen
lu 208075ambrisentan: an ET(A) receptor antagonist and antihypertensive agent; studied for use in pulmonary arterial hypertensiondiarylmethane
phenylalanylglycinePhe-Gly : A dipeptide formed from L-phenylalanine and glycine residues.

phenylalanylglycine: RN given refers to (DL)-isomer
dipeptidemetabolite
glutamylalanineGlu-Ala : A dipeptide formed from L-alpha-glutamyl and L-alanine residues.dipeptidemetabolite
phenylalanylphenylalaninePhe-Phe : A dipeptide formed from two L-phenylalanine residues.dipeptide;
L-aminoacyl-L-amino acid zwitterion
human blood serum metabolite;
Mycoplasma genitalium metabolite
phenylalanyl-valineVal-Phe : A dipeptide formed from L-valine and L-phenylalanine residues.dipeptidemetabolite
alanylglycinedipeptide;
dipeptide zwitterion
metabolite
valyltyrosineVal-Tyr : A dipeptide formed from L-valine and L-tyrosine residues.

valyltyrosine: from sardine muscle hydrolyzate
dipeptidemetabolite
Ala-LysAla-Lys : A dipeptide obtained by formal condensation of the carboxy group of L-alanine with the alpha-amino group of L-lysine.dipeptidemarine metabolite
glycylhistidineGly-His : A dipeptide composed of glycine and L-histidine joined by a peptide linkage.

glycylhistidine: RN given refers to (L)-isomer
dipeptide;
dipeptide zwitterion
metabolite
isoleucyl-tyrosineIle-Tyr : A dipeptide formed from L-isoleucine and L-tyrosine residues.

isoleucyl-tyrosine: a dipeptide with antihypertensive effect
dipeptidemetabolite
valyl-prolyl-prolineVal-Pro-Pro : A tripeptide composed of L-valine and two L-proline units joined by peptide linkages.tripeptidemetabolite
prolylvalineVal-Pro : A dipeptide formed from L-valine and L-proline residues.dipeptidemetabolite
hmr 1556HMR 1556: an I(Ks) channel blocker; structure in first source
ica 27243N-(6-Chloropyridin-3-yl)-3,4-difluorobenzamide: a KCNQ2/3 channel activator; structure in first source
n-(3-amino-1-(cyclobutylmethyl)-2,3-dioxopropyl)-3-(2-((((1,1-dimethylethyl)amino)carbonyl)amino)-3,3-dimethyl-1-oxobutyl)-6,6-dimethyl-3-azabicyclo(3.1.0)hexan-2-carboxamideboceprevir : A synthetic tripeptide consisting of N-(tert-butylcarbamoyl)-3-methyl-L-valyl, a cyclopropyl-fused prolyl and 3-amino-4-cyclobutyl-2-oxobutanamide residues joined in sequence. Used for treatment of chronic hepatitis C virus genotype 1 infection.tripeptide;
ureas
antiviral drug;
hepatitis C protease inhibitor;
peptidomimetic
isoleucyl-valyl-tyrosineoligopeptide
mf63 compoundMF63 compound: a phenanthrene imidazole identified as a potent, selective, and orally active mPGES-1 inhibitor; structure in first source
buparlisibNVP-BKM120: a pan class I PI3 kinase inhibitor with antineoplastic activity; structure in first sourceaminopyridine;
aminopyrimidine;
morpholines;
organofluorine compound
antineoplastic agent;
EC 2.7.1.137 (phosphatidylinositol 3-kinase) inhibitor
cephapirin sodiumcephapirin sodium : The sodium salt of cephapirin. A first-generation cephalosporin antibiotic, it is effective against gram-negative and gram-positive organisms. Being more resistant to beta-lactamases than penicillins, it is effective agains most staphylococci, though not methicillin-resistant staphylococci.cephalosporin;
organic sodium salt
antibacterial drug
dinaciclibpyrazolopyrimidine
(r)-n-(4-(4-methoxyphenyl)thiazol-2-yl)-1-tosylpiperidine-2-carboxamide(R)-N-(4-(4-methoxyphenyl)thiazol-2-yl)-1-tosylpiperidine-2-carboxamide: structure in first source
raltegravir1,2,4-oxadiazole;
dicarboxylic acid amide;
hydroxypyrimidine;
monofluorobenzenes;
pyrimidone;
secondary carboxamide
antiviral drug;
HIV-1 integrase inhibitor
sildenafilsildenafil : A pyrazolo[4,3-d]pyrimidin-7-one having a methyl substituent at the 1-position, a propyl substituent at the 3-position and a 2-ethoxy-5-[(4-methylpiperazin-1-yl)sulfonyl]phenyl group at the 5-position.piperazines;
pyrazolopyrimidine;
sulfonamide
EC 3.1.4.35 (3',5'-cyclic-GMP phosphodiesterase) inhibitor;
vasodilator agent
vardenafilvardenafil : The sulfonamide resulting from formal condensation of the sulfo group of 4-ethoxy-3-(5-methyl-7-propylimidazo[5,1-f][1,2,4]triazin-4(1H)-one-2-yl)benzenesulfonic acid and the secondary amino group of 4-ethylpiperazine.imidazotriazine;
N-alkylpiperazine;
N-sulfonylpiperazine
EC 3.1.4.* (phosphoric diester hydrolase) inhibitor;
vasodilator agent