citric acid, anhydrous and levorphanol

citric acid, anhydrous has been researched along with levorphanol in 1 studies

Research

Studies (1)

Timeframe	Studies, this research(%)	All Research%
pre-1990	1 (100.00)	18.7374
1990's	0 (0.00)	18.2507
2000's	0 (0.00)	29.6817
2010's	0 (0.00)	24.3611
2020's	0 (0.00)	2.80

Authors

Authors	Studies
Karttunen, P; Kolonen, S; Silvasti, M; Tukiainen, H	1

Trials

1 trial(s) available for citric acid, anhydrous and levorphanol

Article	Year
Antitussive effect of dextromethorphan and dextromethorphan-salbutamol combination in healthy volunteers with artificially induced cough. Respiration; international review of thoracic diseases, 1987, Volume: 52, Issue:1 Topics: Adult; Albuterol; Antitussive Agents; Citrates; Citric Acid; Cough; Dextromethorphan; Double-Blind Method; Drug Evaluation; Drug Synergism; Drug Therapy, Combination; Female; Humans; Levorphanol; Male; Placebos; Random Allocation	1987

Article

Year

Antitussive effect of dextromethorphan and dextromethorphan-salbutamol combination in healthy volunteers with artificially induced cough.

Respiration; international review of thoracic diseases, 1987, Volume: 52, Issue:1

Topics: Adult; Albuterol; Antitussive Agents; Citrates; Citric Acid; Cough; Dextromethorphan; Double-Blind Method; Drug Evaluation; Drug Synergism; Drug Therapy, Combination; Female; Humans; Levorphanol; Male; Placebos; Random Allocation

1987