Aminopentamide is a potent antispasmodic agent. As a cholinergic blocking agent for smooth muscle, its action is similar to atropine. Aminopentamide hydrogen sulfate is marketed under the brand name Centrine indicated in the treatment of acute abdominal visceral spasm, pylorospasm or hypertrophic gastritis and associated nausea, vomiting and/or diarrhea of the dogs and cats. Centrine effectively reduces the tone and amplitude of colonic contractions to a greater degree and for a more extended period than does atropine. Centrine effects a reduction in gastric secretion, a decrease in gastric acidity and a marked decrease in gastric motility. Aminopentamide is a nonselective muscarinic cholinergic .

Racemorphan is racemic mixture of an antitussive and dissociative hallucinogen Dextrorphan and an opioid analgesic Levorphanol. Racemorphan itself is under international control per the Single Convention on Narcotic Drugs 1961 and is therefore listed as a Schedule II Narcotic controlled substance.

Propantheline is an antimuscarinic agent used for the treatment of excessive sweating (hyperhidrosis), cramps or spasms of the stomach, intestines (gut) or bladder, and involuntary urination (enuresis). It can also be used to control the symptoms of irritable bowel syndrome and similar conditions. Propantheline is one of a group of antispasmodic medications which work by blocking the action of the chemical messenger acetylcholine, which is produced by nerve cells, to muscarinic receptors present in various smooth muscular tissues, in places such as the gut, bladder, and eye. Normally, the binding of acetylcholine induces involuntary smooth muscular contractions. Varying degrees of drying of salivary secretions may occur as well as decreased sweating. Ophthalmic side effects include blurred vision, mydriasis, cycloplegia, and increased ocular tension. Other reported adverse reactions include urinary hesitancy and retention, tachycardia, palpitations, loss of the sense of taste, headache, nervousness, mental confusion, drowsiness, weakness, dizziness, insomnia, nausea, vomiting, constipation, bloated feeling, impotence, suppression of lactation, and allergic reactions or drug idiosyncrasies including anaphylaxis, urticaria and other dermal manifestations.

Ethopropazine is an anticholinergic drug. Ethopropazine is an inhibitor of butyrylcholinesterase and non-selective muscarinic acetylcholine receptor antagonist. Ethopropazine has been used for the treatment of parkinsonism and drug-induced extrapyramidal reactions. Also It used for the symptomatic treatment of hepatolenticular degeneration and congenital athetosis.

Diphenylpyraline is an antihistamine that prevents but does not reverse, responses mediated by histamine alone. Diphenylpyraline antagonizes most of the pharmacological effects of histamine, including urticaria and pruritus. Also, diphenylpyraline may exhibit anticholinergic actions (as do most of the antihistamines) and may thus provide a drying effect on the nasal mucosa. Antihistamines such as diphenylpyraline used in the treatment of allergy act by competing with histamine for H1-receptor sites on effector cells. This reduces the effects of histamine, leading to a temporary reduction of allergy symptoms.

Oxyphenonium bromide is a quaternary ammonium anticholinergic agent, which was used under brand name antrenyl, to relieve visceral spasms and as an adjunct in the treatment of peptic ulcer. In addition, Oxyphenonium inhibits gastrointestinal propulsive motility and decreases gastric acid secretion and controls excessive pharyngeal, tracheal and bronchial secretions. Action is achieved via a dual mechanism: a specific anticholinergic effect (antimuscarinic) at the acetylcholine-receptor sites and a direct effect upon smooth muscle. Oxyphenonium bromide also been used in the form of eye drops for mydriatic effec

Pamabrom is a diuretic drug, available in over-the-counter medications. The active diuretic ingredient in pamabrom is 8-bromotheophylline. It is used for the relief of temporary water weight gain; bloating; swelling; full feeling associated with the premenstrual and menstrual periods.

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.

Gallamine triethiodide is a synthetic nondepolarizing blocking drug, which is allosteric antagonist of muscarinic M2 acetylcholine receptor and inhibitor of acetylcholinesterase. It was used under brand name flaxedil to stabilize muscle contractions during surgical procedures. However, this usage was discontinued. It was shown, that gallamine caused tachycardia by depressing the vagus nerve and, occasionally, hypertension and increased cardiac output.