Roxatidine is an histamine H2-receptor antagonist. Roxatidine is a potent and selective inhibitor of basal and stimulated gastric acid secretion through competitive blockade of H2-receptors. Total pepsin secretion is reduced in a dose-dependent manner. There is an independent mucosal protection action. Roxatidine is indicated for the treatment of peptic ulcer, gastro-oesophageal reflux disease, gastritis, upper gastrointestinal haemorrhage and Zollinger-Ellison syndrome also it can be used as a premedication before anaesthesia. Roxatidine possessed a robust estrogenic activity.

Ciclonium bromide is an antimuscarinic agent that acts by action by directly relaxing the smooth muscles. It is not approved in the USA, but available was marketed in other countries for functional or organic disorders associated with anxiety and emotional tension e.g. gastric and duodenal ulcers, gastritis, hypersecretion and gastric discomfort, spastic constipation, bile duct dyskinesia, renal colic, and dysmenorrhoea.

Cathine, known as D-norpseudoephedrine, is a psychoactive drug of amphetamine class, found naturally in Catha edulis (khat). It is a norepinephrine and dopamine releasing agent, and has thermogenic and anorectic effect. In the United States, cathine is classified as a Schedule IV controlled substance. Cathine hydrochloride is used as an appetite suppressant during the first few weeks of dieting to help establish new eating habits.

Tiropramide is an antispasmodic medication. It acts by increasing cAMP concentration in smooth muscle possibly because of inhibition of cAMP catabolism. The drug is marketed worldwide for the treatment of irritable bowel syndrome, biliary dyskinesia, acute spasmodic dysphoric syndromes, and other urological and gynecological disorders.

There is a little information about acetoxolone. It is known, that this drug is an acetyl derivative of the glycyrrhetinic acid, which is used to treat peptic ulcer.

Fenpiverinium is a quaternary ammonium compound, it is an anticholinergic and antispasmodic agent. It is a constituent of Baralgin. The effects of the constituents of Baralgin (metamizole , fenpiverinium, and pitofenone ) on mechanical activity were studied in isolated human preparations of the upper urinary tract. Fenpiverinium blocked the increase in frequency of phasic-rhythmic contractions and the tonic tension development induced by acetylcholine. Fenpiverinium did influence neither spontaneous phasic activity nor activation by high potassium or norepinephrine. Fenpiverinium has exclusively anticholinergic properties. Fenpiverinium is a muscarinic acetylcholine receptor antagonist.

Benzoxonium is a quaternary ammonium compound with antibacterial, antiviral, and antimycotic activity. It can be used in topical disinfection, disinfection of surgical instruments, inhibition of plaque formation, and in veterinary products.

Benzilonium is an antispasmodic and antimuscarinic drug. Benzilonium bromide is a quarternary antimuscarinic agent with minimal passage of the blood-brain barrier.

Trimebutine [3,4,5-trimethoxybenzoic acid 2-(dimethylamino)-2-phenylbutylester] is a noncompetitive spasmolytic agent. The actions of trimebutine on the gastrointestinal tract are mediated via (i) an agonist effect on peripheral mu, kappa and delta opiate receptors and (ii) release of gastrointestinal peptides such as motilin and modulation of the release of other peptides, including vasoactive intestinal peptide, gastrin and glucagon. Trimebutine attenuated colonic motility mainly through the inhibition of L-type Ca(2+) channels at higher concentrations, whereas, at lower concentrations, it depolarized membrane potentials by reducing BK(ca) currents, resulting in the enhancement of the muscle contractions.Trimebutine accelerates gastric emptying, induces premature phase III of the migrating motor complex in the intestine and modulates the contractile activity of the colon. It is indicated for the treatment and relief of symptoms associated with the irritable bowel syndrome (spastic colon); and in postoperative paralytic ileus in order to accelerate the resumption of the intestinal transit following abdominal surgery.

Camylofin is an antimuscarinic. This medication is used as antispasmodic in biliary colic, renal and ureteric colic, dysmenorrhoea, peptic ulcer and chronic enterocolitis. It is used to treat stomach ache in infants and children. Camylofin should be the first choice and may be preferred over other drugs for cervical dilatation and acceleration of active phase of labor.