Ethynerone (MK 665) is an oral contraceptive steroid. In preclinical studies, it induced mammary tumors.

Ciprocinonide (RS-2386) is a synthetic glucocorticoid corticosteroid. It was developed in the 1980s for a topical administration as a component of the Triple Corticoid Integrated System.

Procinonide is a derivative of fluocinolone acetonide that has been applied topically with fluocinonide and ciprocinonide in the management of various skin disorders.

Tiomergine is an ergot alkaloid derivative. It is the agonist of the postulated presynaptic dopamine receptor. Tiomergine is the antiparkinsonian agent. Tiomergine modified brain glucose metabolism in a way similar to the neuroleptics but different from postsynaptic agonists. It was ineffective in the treatment of tardive dyskinesia.

Triclonide is the anti-inflammatory steroid for the topical use.

Ripazepam (CI 683 or pyrazapon) is a pyrazolodiazepine that has anxiolytic effects. It is related to certain benzodiazepines such as zolazepam. In animal studies, it showed anxiolytic effects without sedative or depressant effects. In rats, it did not elicit a tumorigenic potential. Although ripazepam was found significantly superior to placebo and was well tolerated in neurotic patients, it has never been marketed for clinical use.

Metalol is an antagonist at beta-adrenergic receptors.

KETAZOCINE, a benzomorphan derivative, is a kappa opioid receptor agonist. It is used in opioid receptor research.