Difluanine is the central nervous system stimulant.

Dimpylate (diazinon) is a nonsystemic organophosphate insecticide, an inhibitor of the enzyme acetylcholinesterase (AChE), which hydrolyzes the neurotransmitter acetylcholine (ACh) in cholinergic synapses and neuromuscular junctions. This results in abnormal accumulation of ACh in the nervous system. Dimpylate was first registered for use in the USA in 1956. It was developed as an insecticide, acaricide, and nematicide for use on a variety of pests for control of soil insects and pests of fruit, vegetables, and forage and field crops. It had been used extensively in home and garden applications, in formulations designed to prevent such pests as crickets or cockroaches from infesting homes or offices, and in pet collars. Due to the emerging health and ecological risks posed by diazinon, manufacturers agreed to phase out and cancel all residential products. Manufacturing of indoor use products containing dimpylatewas discontinued in 2001; manufacture of non-agricultural outdoor use products containing dimpylate was discontinued in 2003.

Fenamole is a muscle relaxant. It is effectively inhibits muscle spasms at good levels for a four hours and at significant levels for six hours. Clinical benefits were derived in patients with spasticity-spasm for periods up to 24 hours after a single oral dose. Fenamole is relatively free of adverse side effects particularly in the central nervous system. It is a potent copper chelator. It was once investigated as a potential antirheumatic agent in man.

Tetroquinone (Tetrahydroxy-1,4-benzoquinone, tetrahydroxy-p-benzoquinone, tetrahydroxybenzoquinone) is cyclohexadiene derivative with four hydroxyl groups and two ketone groups in opposite (para) positions, with potent prooxidant activity. The exposure of exponentially growing cultures to Tetroquinone, in the presence of Ca2+, caused a dose-dependent inhibition of cell growth and DNA synthesis. The chemical reactivity of Tetroquinone is strongly similar to those of physiological polyphenols, such as catechols and catecholamines. Despite their physiological and pharmacological roles, these compounds may, in addition, present toxicological properties due to their ability to autoxidize generating ROS and quinones Similar to catechols, the OH-substituents confer to Tetroquinone the ability to autoxidize readily in neutral aqueous solutions generating intermediate superoxide anion radicals, semiquinone radicals, and the corresponding quinone. The compound can be synthesized from glyoxal or from myo-inositol (phytic acid), a natural compound widely present in plants.

Hydroxystenozole is an orally active anabolic-androgenic steroid (AAS) that was described in the literature in 1967 but was never marketed.

Brocresine, an aromatic L-amino acid decarboxylase inhibitor with both a peripheral and central action was shown to potentiate the therapeutic effect of levodopa in Parkinson's disease.

Sulfazamet is a sulfanilamide derivative that exhibits antibacterial activity against Streptococci sepsis

Doretinel is a member of a class of compounds known collectively as retinoids. As a topical gel, it was being studied for its potential use as a dermatological product.