Methylbenactyzium bromide has been used as a spasmolytic for the treatment of gastrointestinal ulcer and gastrointestinal spasms.

Thioproperazine is a potent neuroleptic with antipsychotic properties. Thioproperazine has a marked cataleptic and antiapomorphine activity associated with relatively slight sedative, hypothermic and spasmolytic effects. It is virtually without antiserotonin and hypotensive action and has no antihistaminic property. It is used for the treatment of all types of acute and chronic schizophrenia, including those which did not respond to the usual neuroleptics; manic syndromes. Overdosage may result in severe extrapyramidal symptoms with dysphagia, marked sialorrhea, persistent and rapidly increasing hyperthermia, pulmonary syndrome, state of shock with pallor and profuse sweating, which may be followed by collapse and coma.

Fenspiride is an oxazolidinone spiro compound used as a drug in the treatment of certain respiratory diseases. It is approved for use in Russia for the treatment of acute and chronic inflammatory diseases of ENT organs and the respiratory tract (like rhinopharyngitis, laryngitis, tracheobronchitis, otitis and sinusitis), as well as for maintenance treatment of asthma. Fenspiride is marketed under the brand names Eurespal, Pneumorel, SYRESP, Oxofen and others. Erespal (fenspiride) is a drug with a bronchodilator and spasmolytic effect, which is often used in the complex therapy of bronchial asthma. Fenspiride has a clinically proven ability to increase the activity of the cilia of the bronchial ciliated epithelium, normalize the secretion of the bronchi and reduce its viscosity. Effectively removes bronchial obstruction, restores pulmonary gas exchange. Inhibits the metabolism of arachidonic acid, in parallel blocking histamine H1-receptors, since it is histamine that stimulates the chemical reactions of the transformation of arachidonic acid into the final metabolites-factors of inflammation. Reduces the production of other mediators of inflammation - serotonin and bradykinin. It blocks α-adrenergic receptors, the activation of which increases the secretion of bronchial glands. The complex effect of fenspiride reduces the pathological effect of a number of factors that promote hypersecretion of anti-inflammatory substances and cause obstruction of the bronchial tree. Has a pronounced antispasmodic and myotropic effect.

Landiolol (Onoact) is an intravenously administered, ultra short-acting β1-blocker with an elimination half-life of 3-4 min and ≈8-fold greater cardioselectivity than esmolol in vitro. It is approved in Japan for the treatment of intraoperative and postoperative tachyarrhythmias, but in clinical practice is also used to prevent postoperative tachyarrhythmias, such as atrial fibrillation after coronary artery bypass grafting. Randomized controlled trials in patients undergoing open-heart surgery demonstrated that various dosages of landiolol (0.0005-0.04 mg/kg/min) [0.5-40 μg/kg/min] were more effective than diltiazem in converting postoperative atrial fibrillation to normal sinus rhythm during the first 8 h after surgery, and were more effective than placebo (or no landiolol) in preventing the development of atrial fibrillation during the first week after surgery (primary efficacy endpoints). Landiolol was generally well tolerated in clinical trials, with a relatively low risk of hypotension and bradycardia, although routine monitoring of cardiac function during landiolol administration is important. In general, adverse events such as reduced blood pressure resolve quickly after discontinuation of landiolol. Thus, as an ultra short-acting β1-blocker with a rapid onset of action and readily titratable and rapidly reversible effects, landiolol represents an important agent for the management of intraoperative and postoperative tachyarrhythmias.

Acefylline is a stimulant drug of the xanthine chemical class. It acts as an adenosine receptor antagonist. Acephylline piperazine is a theophylline derivative with a direct bronchodilator action. It has the advantages over theophylline in being far less toxic and producing minimal gastric irritation. It is indicated for the treatment of asthma, emphysema, acute and chronic bronchitis associated with bronchospasm.Acefylline relaxes smooth muscles, relieves bronchospasm & has a stimulant effect on respiration. It stimulates the myocardium & central nervous system, decreases peripheral resistance & venous pressure & causes diuresis. The mechanism of action is still not clear, inhibition of phosphodiesterase with a resulting increase in intracellular cyclic AMP does occur, but not apparently at concentrations normally used for clinical effect. Other proposed mechanisms of action include adenosine receptor antagonism, prostaglandin antagonism & effects on intracellular calcium. Sodium phenobarbital is a non-selective central nervous system depressant that is primarily used as sedative-hypnotic.

Pronetalol (Pronethalol) is a nonselective beta-adrenoceptor antagonist that is structurally related to propranolol. Pronethalol displays a ∼125–150-fold lower affinity (140–830 nM) for beta-adrenoceptors than propranolol (1.1–5.7 nM). Pronethalol was the first beta-adrenoceptor antagonist used for the treatment of coronary heart disease and cardiac arrhythmias. Pronethalol is a cationic-amphiphilic agent that exhibits membrane-stabilizing effects that are unrelated to beta-adrenoceptor blockade. Pronetalol itself never came into widespread clinical use; it was found to produce thymic tumors in mice, and was discarded in favor of a similar, safer compound, ICI 45,520.

Mivacurium chloride (Mivacron) is a new benzylisoquinolinium choline-like diester neuromuscular blocking drug with an onset of action at equipotent doses that is comparable to atracurium and vecuronium but slower than succinylcholine. MIVACRON (a mixture of three stereoisomers) binds competitively to cholinergic receptors on the motor end-plate to antagonize the action of acetylcholine, resulting in a block of neuromuscular transmission. This action is antagonized by acetylcholinesterase inhibitors, such as neostigmine. MIVACRON is a short-acting neuromuscular blocking agent indicated for inpatients and outpatients, as an adjunct to general anesthesia, to facilitate tracheal intubation and to provide skeletal muscle relaxation during surgery or mechanical ventilation.

Ganciclovir is a synthetic acyclic nucleoside analogue of 2'-deoxyguanosine active against cytomegalovirus. Ganciclovir has been shown to be active against cytomegalovirus (CMV) and herpes simplex virus (HSV) in humans. To achieve anti-CMV activity, ganciclovir is phosphorylated first to the monophosphate form by a CMV-encoded (UL97 gene) protein kinase homologue, then to the di- and triphosphate forms by cellular kinases. Ganciclovir triphosphate concentrations may be 100-fold greater in CMV-infected than in uninfected cells, indicating preferential phosphorylation in infected cells. Ganciclovir triphosphate, once formed, persists for days in the CMV-infected cell. Ganciclovir triphosphate is believed to inhibit viral DNA synthesis by (1) competitive inhibition of viral DNA polymerases; and (2) incorporation into viral DNA, resulting in eventual termination of viral DNA elongation. Ganciclovir is indicated for the treatment of CMV retinitis in immunocompromised patients, including patients with acquired immunodeficiency syndrome (AIDS) and for the treatment of acute herpetic keratitis.

Ganciclovir is a synthetic acyclic nucleoside analogue of 2'-deoxyguanosine active against cytomegalovirus. Ganciclovir has been shown to be active against cytomegalovirus (CMV) and herpes simplex virus (HSV) in humans. To achieve anti-CMV activity, ganciclovir is phosphorylated first to the monophosphate form by a CMV-encoded (UL97 gene) protein kinase homologue, then to the di- and triphosphate forms by cellular kinases. Ganciclovir triphosphate concentrations may be 100-fold greater in CMV-infected than in uninfected cells, indicating preferential phosphorylation in infected cells. Ganciclovir triphosphate, once formed, persists for days in the CMV-infected cell. Ganciclovir triphosphate is believed to inhibit viral DNA synthesis by (1) competitive inhibition of viral DNA polymerases; and (2) incorporation into viral DNA, resulting in eventual termination of viral DNA elongation. Ganciclovir is indicated for the treatment of CMV retinitis in immunocompromised patients, including patients with acquired immunodeficiency syndrome (AIDS) and for the treatment of acute herpetic keratitis.

Clomiphene (CLOMID®) is a triphenyl ethylene stilbene derivative which is an estrogen agonist or antagonist depending on the target tissue. It is an orally administered, nonsteroidal, ovulatory stimulant. Clomiphene (CLOMID®) is a mixture of two geometric isomers [cis (zuclomiphene) and trans (enclomiphene)] containing between 30% and 50% of the cis-isomer. Clomiphene (CLOMID®) initiates a series of endocrine events culminating in a preovulatory gonadotropin surge and subsequent follicular rupture. The first endocrine event in response to a course of clomiphene therapy is an increase in the release of pituitary gonadotropins. This initiates steroidogenesis and folliculogenesis, resulting in growth of the ovarian follicle and an increase in the circulating level of estradiol. Following ovulation, plasma progesterone and estradiol rise and fall as they would in a normal ovulatory cycle.