Tiprostanide is a 13-thia-PGE1 analog which also contains a p-benzamidophenyl ester, presumably to enhance crystallinity and stability. Although originally targeted and evaluated as an antihypertensive agent, emphasis was switched to an antiulcer indication because of disappointing clinical results. Tiprostanide has two distinct properties in the human stomach, viz. antisecretory and protective, which are independent of each other. Antisecretory prostaglandins protect the human stomach against aspirin and bile salts in doses which are much smaller than the threshold antisecretory ones.

Truxipicurium, a derivative of alpha-truxillic acid, a curare-like drug, is a neuromuscular blocking agent with rigid structure.

Pamatolol is a beta-Adrenergic receptor antagonist was studied as an Antiarrhythmic agent. The phase I clinical trial has shown that the drug was relatively cardioselective in man. Information about the further development of this drug is not available.

Lometrexol, formerly known as DDATHF; LY 264618; T-64 was the first glycinamide ribonucleotide formyl transferase (GARFT) inhibitor to be investigated clinically. Lometrexol had been in phase II clinical trial for the treatment non-small cell lung cancer (NSCLC). However, the studies have been discontinued by Tularik Inc, because Company had suggested, that drug would face competition from other companies in the indication

Menabitan is a synthetic cannabinoid exerting analgesic activity.

Iozomic Acid is triiodobenzoic acid derivative patented by Pharmacia Aktiebolag as X-ray contrast agent for Coronary Angiography.

JNJ-872 is an inhibitor of influenza virus replication that offers a potential for the treatment of pandemic and seasonal influenza.

Odalprofen was used as an analgesic. Information about the current use of this compound is not available.

LASCUFLOXACIN, a fluoroquinolone derivative, is an antibacterial agent with a broad spectrum of activity against various clinical isolates. It is under development for the treatment of respiratory tract infections and community-acquired pneumonia.