Beclamide (N-benzyl-B-chloropropionamide) is a drug that possesses anticonvulsant activity. It is no longer used. It has been used as a sedative and as an anticonvulsant. Beclamide has been used in the management of both epilepsy and behavioral disorders associated with epilepsy. It was introduced into clinical practice in 1952 under the brand names Hibicon, Lederle and later it was withdrawn. This agent was shown to be effective in grand mal but not absence seizures. Early claims emphasized its safety, and it is not entirely clear why it was withdrawn from therapy for epilepsy. Interest in the drug was rekindled in the 1990s as an adjunct in the treatment of schizophrenia.

PYRROBUTAMINE is a potent H1-antihistamine. H1-antihistamines interfere with the agonist action of histamine at the H1 receptor and are administered to attenuate the inflammatory process in order to treat conditions such as allergic rhinitis, allergic conjunctivitis, and urticaria.

ARSTHINOL, an organoarsenical compound, is an antiprotozoal agent used for the treatment of mild or asymptomatic intestinal amebiasis. ARSTHINOL in complex with cyclodextrin displays an anticancer activity.

Phenindione is an anticoagulant which functions as a Vitamin K antagonist. The drug was discontinued in USA, but still in use worldwide.

Nalorphine has a mixed opioid agonist-antagonist properties. Nalorphine inhibits the cholinesterases of mouse brain, bovine erythrocytes and horse serum. It acts on mu-, k- and sigma-opioid receptors. Nalorfin by virtue of the agonistic effect has an analgesic effect but to a much lesser extent than morphine. Initially, before the appearance of a "pure" morphine-naloxone antagonist, nalorphine was used as an antidote for severe respiratory depression and other body function disorders caused by acute poisoning in case of an overdose of morphine, promedol, fentanyl or other narcotic analgesics, or with increased sensitivity to them. At present, nalorphine is practically not used for this purpose. It was replaced by naloxone. Large doses of nalorphine can cause nausea, cramps, drowsiness, headache, mental stimulation.

Bromodiphenhydramine also known as bromazine, is an antihistamine and anticholinergic agent, which was used to under brand name ambordyl. Ambordyfor was indicated for the treatment of allergic symptoms, but that usage, was discontinued. It was shown, that bromodiphenhydramine competed with free histamine for binding at HA-receptor sites and lead to a reduction of the negative symptoms brought on by histamine HA-receptor binding.

Dimethisoquin (also known as Quinisocaine and QUOTANE) is a topical anesthetic used as an antipruritic. It was shown that dimethisoquin inhibits nicotinic acetylcholine receptors (alpha4/beta4 and alpha4/beta2) with the maximum inhibition potency occurring for the α4β4 subtype.

Meparfynol is a tertiary hexanol and potent tranquilizer with hypnotic/sedative and anticonvulsant effects and exceptionally low therapeutic index. It was discovered by Bayer in 1913 and was used shortly thereafter for the treatment of insomnia, but its use was quickly phased out in response to newer drugs with far more favorable safety profiles. Meparfynol depresses monosynaptic and polysynaptic reflexes and exerted weak ganglion and neuromuscular blocking actions. Meparfynol also produces transitory hypotension, an increase of aortic blood flow. Perfusion of the coronary arteries with Meparfynol led to a slowing of the heart, diminished systolic amplitude, dysrhythmias, and increased coronary flow. Respiration was stimulated with small and depressed with larger doses of Meparfynol.

Phenacemide, also known as phenylacetylurea, is an anticonvulsant of the ureide (acetylurea) class. Phenacemide was introduced in 1949 for the treatment of epilepsy, but was eventually withdrawn from the market because of its severe side effects, which includes personality changes, blood, renal and skin disorders.

Dyphylline is 7-(2,3-dihydroxypropyl)-theophylline, a white, extremely bitter, amorphous powder that is freely soluble in water and soluble in alcohol. Dyphylline is stable in gastrointestinal fluids over a wide range of pH. Dyphylline is a xanthine derivative with pharmacologic actions similar to theophylline and other members of this class of drugs. Its primary action is that of bronchodilation, but it also exhibits peripheral vasodilatory and other smooth muscle relaxant activity to a lesser degree. The bronchodilatory action of dyphylline, as with other xanthines, is thought to be mediated through competitive inhibition of phosphodiesterase with a resulting increase in cyclic AMP producing relaxation of the bronchial smooth muscle. Dyphylline exerts its bronchodilatory effects directly and, unlike theophylline, is excreted unchanged by the kidneys without being metabolized by the liver. Because of this, dyphylline pharmacokinetics and plasma levels are not influenced by various factors that affect liver function and hepatic enzyme activity, such as smoking, age, congestive heart failure, or concomitant use of drugs which affect liver function.