Letter: Stability of aspirin in propoxyphene compound dosage forms.
D001241:Aspirin; D011431:Dextropropoxyphene; D004304:Dosage Forms; D004338:Drug Combinations; D004355:Drug Stability
D004304:Dosage Forms; D004338:Drug Combinations; D001241:Aspirin; D011431:Dextropropoxyphene