Prifinium bromide is a quaternary ammon antimuscarinic. It inhibits hyperkinesia of the digestive organs and urinary tract and has a spasmolytic action.

Litoxetine HCl is a selective 5-hydroxytryptamine (5-HT) reuptake inhibitor (SSRI) and mixed 5-hydroxytryptamine antagonist used in the treatment of urinary incontinence. Litoxetine HCl in the absence of antimuscarinic concentrations without antimuscarinic properties (10 nM-1 microM) caused concentration-dependent relaxation of isolated oesophageal muscle mucosa in rats, reducing carbachol tone by up to 37%. Higher concentrations of Litoxetine HCl (3 microM-300 microM) were associated with significant relaxation up to abolition of carbachol tone. The antiarrhythmic activity of Litoxetine HCl, previously demonstrated in the isolated guinea pig intestine, was exerted in the isolated rat oesophageal muscle mucosa at concentrations greater than 1 microM. The 5-HT-releasing effect of Litoxetine HCl could explain the potency of Litoxetine HCl on 5-HT-induced relaxation in untreated rat tissue, which was reversed by pCPA treatment.

Tiquizium has effective Antimuscarinic effect, and causes significant bronchodilation in patients with chronic obstructive pulmonary disease.

Oxyphencyclimine Hydrochloride (Ulcociclinina) is a synthetic tertiary amine and antimuscarinic agent with antispasmodic and antisecretory activities.

Cyclopentolate Hydrochloride is a muscarinic acetylcholine receptors antagonist with Kis of 1.62, 27.5, and 2.63 nM for M1, M2, and M3 receptors, respectively.

Methylatropine is an antagonist of muscarinic acetylcholine receptors (IC50= <0.1 nM in a radioligand binding assay using isolated porcine brain membranes) and a derivative of atropine .1,2It reduces acetylcholine-induced decreases in blood pressure in rats when administered intravenously with an ED50value of 5.5 μg/kg.2Methylatropine reduces salivation, induces mydriasis, and increases heart rate in dogs.3 1.Schmeller, T., Sporer, F., Sauerwein, M., et al.Binding of tropane alkaloids to nicotinic and muscarinic acetylcholine receptorsPharmazie50(7)493-495(1995) 2.Brezenoff, H.E., Xiao, Y.-F., and Vargas, H.A comparison of the central and peripheral antimuscarinic effects of atropine and methylatropine injected systemically and into the cerebral ventriclesLife Sci.42(8)905-911(1988) 3.Albanus, L.Central and peripheral effects of anticholinergic compoundsActa Pharmacol. Toxicol. (Copenh)28(4)305-326(1970)

Migrastatin is a bacterial metabolite that has been found inStreptomyceswith antimuscarinic and anticancer activities.1,2It binds to M1-5muscarinic acetylcholine receptors (Kis = >200, 200, 31, 43, and >200 μM, respectively) and inhibits calcium mobilization induced by carbamoylcholine in SK-N-SH cells (IC50= 28 μM), as well as in primary rat bladder smooth muscle cells.1Migrastatin inhibits the migration of EC17 esophageal cancer cells in a wound healing assay (IC50= 10 μg/ml) and 4T1 mouse mammary carcinoma cells in a chamber cell migration assay (IC50= 29 μM).2It enhances cytotoxicity induced by vinblastine in vincristine-resistant P388/VCR cells.3

Camylofine (Avacan) is an antimuscarinic, used for relaxing smooth muscle.

Flavoxate is an anticholinergic with antimuscarinic effects.

Liriodenine is a potent inhibitor of topoisomerase II (EC 5.99.1.3) both in vivo and in vitro, it has antitumor, antibacterial and antifungal activities, it can suppress ventricular arrhythmias induced by myocardial ischaemia reperfusion, through inhibiti

Espatropate is a bronchodilator with antimuscarinic activity.

Caramiphen hydrochloride is the salt form of Caramiphne (free base), which is an antimuscarinic and anticholinergic agent. It acts as an antagonist of NMDA receptor.

Propiverine is a potent antimuscarinic agent that effectively inhibits cellular calcium influx, leading to the reduction of muscle spasm. It exhibits neurotropic and musculotropic effects specifically on the smooth muscles of the urinary bladder. Propiverine proves valuable in research concerning overactive bladder (OAB) [1] [2].

Tridihexethyl is an anticholinergic, antimuscarinic, and antispasmolytic drug, which can be used to treat acquired nystagmus or peptic ulcer disease.

Esoxybutynin Chloride is (S)-enantiomer of oxybutynin. Esoxybutynin Chloride exerts antimuscarinic properties. Racemic oxybutynin is used clinically to treat urinary incontinence. Sepracor was developing (S)-oxybutynin, a single-isomer version of Alza's Ditropan (racemic oxybutynin), a muscarinic acetylcholine receptor antagonist, as a potential treatment for urinary incontinence.

Piperilate HCl is an antispasmodic, antimuscarinic agent. It is a muscarinic cholinergic receptor antagonist.

Trimebutine maleate (Polibutin) is a weak mu-opioid agonist and has antimuscarinic effects. Trimebutine is an agonist of peripheral mu, delta, and kappa opiate receptors served as a spasmolytic drug for therapy of both chronic and acute abdominal pain.

Fesoterodine fumarate (Toviaz) is the fumarate salt form of fesoterodine, a competitive muscarinic receptor antagonist with muscle relaxant and urinary antispasmodic properties. Fesoterodine is rapidly hydrolyzed in vivo into its active metabolite 5-hydroxymethyl tolterodine, which binds and inhibits muscarinic receptors on the bladder detrusor muscle, thereby preventing bladder contractions or spasms caused by acetylcholine.

Homatropine Methylbromide is the methyl bromide salt of homatropine, a synthetic tertiary amine alkaloid with antimuscarinic properties.

Dihexyverine HCl is an antimuscarinic with effects similar to those of atropine.

Telenzepine is a potent and selective M1 antimuscarinic.

Diphenidol hydrochloride (Difenidol hydrochloride), a muscarinic antagonist, is employed as an anti-vertigo and as an antiemetic drug.

Oxomemazine is a phenothiazine-based histamine H1-receptor blocker with pronounced antimuscarinic activity. Oxomemazine is a selective antagonist of mycotoxins M1 receptors, showing high (Ki=84 nM, M1 receptors) and low (Ki=1.65 μM, M2 receptors) affinity sites 20 times the difference[1]. Oxomemazine is an antihistamine and anticholinergic agent used in studies related to cough studies[2].

Fesoterodine L-mandelate is a efficacious antimuscarinic agent for the overactive bladder (OAB).

Revatropate, a selective muscarinic antagonist, is an antimuscarinic drug.

Esoxybutynin Free Base is (S)-enantiomer of oxybutynin. Esoxybutynin Free Base exerts antimuscarinic properties. Racemic oxybutynin is used clinically to treat urinary incontinence. Sepracor was developing (S)-oxybutynin, a single-isomer version of Alza's Ditropan (racemic oxybutynin), a muscarinic acetylcholine receptor antagonist, as a potential treatment for urinary incontinence.

(R)-Oxybutynin (Aroxybutynin) is an orally active muscarinic receptor antagonist, which exhibits antimuscarinic, antispasmodic, and anticholinergic activity. This compound, being the (R)-isomer of Oxybutynin, competitively antagonizes Carbachol-induced contractions. It is particularly useful in researching neurogenic bladder dysfunction-related incontinence [1] [2] [3].

Trihexyphenidyl hydrochloride (Benzhexol hydrochloride) is an antiparkinsonian agent of the antimuscarinic class.

Carbinoxamine Maleate Salt (Lergefin) is an ethanolamine class of H1 antihistamines with mild antimuscarinic and sedative properties.

Clidinium bromide (Ro 2-3773) , a synthetic anticholinergic agent, has been shown in experimental and clinical researchers to have a pronounced antisecretory and antispasmodic effect on the gastrointestinal tract. It can inhibit muscarinic actions of acetylcholine at postganglionic parasympathetic neuroeffector sites. It is used for the treatment of peptic ulcer disease and also to help relieve cramps or stomach spasms or abdominal due to colicky abdominal diverticulitis, pain, and irritable bowel syndrome.

Otilonium bromide (SP63) , an antimuscarinic, is utilized as a spasmolytic agent.

Fesoterodine ((R) Fesoterodine) is an orally active, competitive mAChR antagonist with pKi values of 8.0, 7.7, 7.4, 7.3, 7.5 for M1, M2, M3, M4, M5 receptors, respectively. It is used for the overactive bladder (OAB).

Caramiphen is an antimuscarinic and anticholinergic agent that acts as an antagonist of the NMDA receptor.

Trimebutine (Mebutin) is a spasmolytic agent that regulates intestinal and colonic motility and relieves abdominal pain with antimuscarinic and weak mu-opioid agonist effects. It is marketed for the treatment of irritable bowel syndrome (IBS) and lower gastrointestinal tract motility disorders, with IBS being one of the most common multifactorial GI disorders. It is used to restore normal bowel function and is commonly present in pharmaceutical mixtures as trimebutine maleate salt form. Trimebutine is not an FDA-Approved/Clinical drug, but it is available in Canada and several other international countries.

Propiverine is a widely used antimuscarinic drug with a mixed mode of action in the treatment of symptoms associated with overactive bladder (OAB).

Piperidolate hydrochloride is an antimuscarinic, could restrain the abnormal activity caused by acetylcholine. inhibits intestinal cramp induced by acetylcholine (rats and dogs).

Liriodenine methiodide shows antibacterial and antifungal activity against several microorganisms.