Benafentrine (also known as AH 21-132), an inhibitor of the phosphodiesterase (PDE) III and IV isoenzymes, had an anti-allergic effect and was studied for the treatment of allergic bronchial asthma. However, the development of the drug was discontinued at phase I.

Tiopropamine is an anti-inflammatory agent. Tiopropamine hydrochloride has been used in the treatment of peptic ulcers.

Tiflorex (also known as (+)-Flutiorex) is a phenylalkylamine derivative patented by Synthelabo S. A. as an anorectic agent. Tiflorex acts as a central nervous system stimulant form amphetamine class with little effect on pulse rate, sleep, or mood. In preclinical models, Tiflorex provoked a dose-dependent reduction in the consumption of the protein-rich diet and a reduction in the consumption of the protein-poor diet.

Protheobromine is a derivative of the xanthine alkaloid theobromine with diuretic and vasodilating activity.

Iotasulis a triiodoaminoisophthalic acid derivative patented by Schering A.-G. as a water-soluble contrast medium. Iotasul is very suitable for subepidermal infusion (indirect lymphography) for the demonstration of small (initial) dermal lymphatics in the macro-range (precollectors). By this method, normal lymph vessels can be demonstrated in the healthy skin of hands and feet which are so fine that they cannot be punctured for direct lymphography.

Pirepolol is the beta-adrenergic blocking agent. It was developed as an antihypertensive agent.

Octimibate is a non-prostanoid inhibitor of platelet aggregation that acts via the prostacyclin receptor.

Gliamilide is a high-potency sulfamylurea hypoglycemic agent. It has been found to be well tolerated in humans and displays a very short plasma half-life. Like sulfonylureas, gliamilide can lower blood glucose levels by increasing the insulin release from pancreatic beta cells.