Biomaterial Database

Stability of aspirin in propoxyphene compound dosage forms. 1977

R Goldberg, and C H Nightingale

The stability of aspirin in propoxyphene compound capsules made by three manufacturers, stored under a variety of temperature and humidity conditions, was compared. The cotton packing was removed from 100-capsule bottles, and the containers were stored (capped) under the following conditions: 25 c37 C and 50 C at both high (90%) and low (10%) humidity. No desiccant was removed from the bottles if originally present. The products tested were Darvon Compound-65 (two formulations) (Lilly), SK-65 Compound (Smith Kline & French) and Dolene Compound-65 (Lederle). Under all conditions, the stability of aspirin in the SK-65 Compound product was greater than that of Darvon Compound-65 which in turn was greater than Dolene Compound-65. Further, the rate of aspirin decomposition was greater in the latter product than in the others.

UI	MeSH Term	Description	Entries
D011431	Dextropropoxyphene	A narcotic analgesic structurally related to METHADONE. Only the dextro-isomer has an analgesic effect; the levo-isomer appears to exert an antitussive effect.	D-Propoxyphene,Darvon,Propoxyphene,Propoxyphene Hydrochloride,Propoxyphene Hydrochloride, (R,R)-(+-)-Isomer,Propoxyphene Hydrochloride, (R-(R,R))-Isomer,Propoxyphene Hydrochloride, (R-(R,S))-Isomer,Propoxyphene Hydrochloride, (S-(R,R))-Isomer,Propoxyphene Maleate, (+)-Isomer,Propoxyphene Phosphate, (S-(R,S))-Isomer,Propoxyphene Sulfate, (S-(R,S))-Isomer,D Propoxyphene,Hydrochloride, Propoxyphene
D002214	Capsules	Hard or soft soluble containers used for the oral administration of medicine.	Capsule,Microcapsule,Microcapsules
D004338	Drug Combinations	Single preparations containing two or more active agents, for the purpose of their concurrent administration as a fixed dose mixture.	Drug Combination,Combination, Drug,Combinations, Drug
D004355	Drug Stability	The chemical and physical integrity of a pharmaceutical product.	Drug Shelf Life,Drugs Shelf Lives,Shelf Life, Drugs,Drug Stabilities,Drugs Shelf Life,Drugs Shelf Live,Life, Drugs Shelf,Shelf Life, Drug,Shelf Live, Drugs,Shelf Lives, Drugs
D004356	Drug Storage	The process of keeping pharmaceutical products in an appropriate location.	Drug Storages,Storage, Drug,Storages, Drug
D006207	Half-Life	The time it takes for a substance (drug, radioactive nuclide, or other) to lose half of its pharmacologic, physiologic, or radiologic activity.	Halflife,Half Life,Half-Lifes,Halflifes
D006813	Humidity	A measure of the amount of WATER VAPOR in the air.	Humidities
D001241	Aspirin	The prototypical analgesic used in the treatment of mild to moderate pain. It has anti-inflammatory and antipyretic properties and acts as an inhibitor of cyclooxygenase which results in the inhibition of the biosynthesis of prostaglandins. Aspirin also inhibits platelet aggregation and is used in the prevention of arterial and venous thrombosis. (From Martindale, The Extra Pharmacopoeia, 30th ed, p5)	Acetylsalicylic Acid,2-(Acetyloxy)benzoic Acid,Acetysal,Acylpyrin,Aloxiprimum,Colfarit,Dispril,Easprin,Ecotrin,Endosprin,Magnecyl,Micristin,Polopirin,Polopiryna,Solprin,Solupsan,Zorprin,Acid, Acetylsalicylic
D012459	Salicylates	The salts or esters of salicylic acids, or salicylate esters of an organic acid. Some of these have analgesic, antipyretic, and anti-inflammatory activities by inhibiting prostaglandin synthesis.	Salicylate,Salicylic Acids,Acids, Salicylic
D013997	Time Factors	Elements of limited time intervals, contributing to particular results or situations.	Time Series,Factor, Time,Time Factor