pyrazines has been researched along with phenylpropanolamine in 3 studies
| Timeframe | Studies, this research(%) | All Research% |
|---|---|---|
| pre-1990 | 0 (0.00) | 18.7374 |
| 1990's | 0 (0.00) | 18.2507 |
| 2000's | 2 (66.67) | 29.6817 |
| 2010's | 1 (33.33) | 24.3611 |
| 2020's | 0 (0.00) | 2.80 |
| Authors | Studies |
|---|---|
| Ding, MY; Li, HX; Lv, K; Yu, JY | 1 |
| Ding, MY; Li, HX; Lü, K; Yu, JY | 1 |
| Arafat, T; Idkaidek, N | 1 |
3 other study(ies) available for pyrazines and phenylpropanolamine
| Article | Year |
|---|---|
Separation and determination of ephedrine alkaloids and tetramethylpyrazine in Ephedra sinica Stapf by gas chromatography-mass spectrometry.
Topics: Ephedrine; Gas Chromatography-Mass Spectrometry; Helium; Phenylpropanolamine; Plant Extracts; Plants, Medicinal; Pyrazines; Quality Control; Reproducibility of Results | 2001 |
[Separation and determination of ephedrine alkaloids and 2,3,5,6-tetramethyl pyrazine in Ephedra herba by HPLC].
Topics: Alkaloids; Chromatography, High Pressure Liquid; Ephedra sinica; Ephedrine; Phenylpropanolamine; Pyrazines | 2001 |
Saliva versus plasma pharmacokinetics: theory and application of a salivary excretion classification system.
Topics: Acetates; Anthraquinones; Azithromycin; Benzhydryl Compounds; Cinacalcet; Cloxacillin; Cresols; Cyclopropanes; Female; Fluorobenzenes; Humans; Hydrochlorothiazide; Losartan; Male; Metformin; Naphthalenes; Phenylpropanolamine; Piroxicam; Pyrazines; Pyrimidines; Quinolines; Rosuvastatin Calcium; Saliva; Sitagliptin Phosphate; Sulfides; Sulfonamides; Tamsulosin; Tolterodine Tartrate; Triazoles | 2012 |