Paroxetine is an antidepressant of the selective serotonin reuptake inhibitor (SSRI) class. It is used to treat major depressive disorder, obsessive-compulsive disorder, panic disorder, social anxiety disorder, posttraumatic stress disorder, generalized anxiety disorder and premenstrual dysphoric disorder. It has also been used in the treatment of premature ejaculation and hot flashes due to menopause.

Scopolamine hydrobromide trihydrate is a hydrate that is the trihydrate form of scopolamine hydrobromide. It has a role as a mydriatic agent, a muscarinic antagonist, an anaesthesia adjuvant, an antispasmodic drug and an antiemetic.

Thiocolchicoside is a muscle relaxant with anti-inflammatory and analgesic effects. It acts as a competitive GABAA receptor antagonist and also glycine receptor antagonist with similar potency and nicotinic acetylcholine receptors to a much lesser extent.

Cimetropium is a semi-synthetic belladonna alkaloid and derivative of scopolamine. It is a potent antimuscarinic and an effective antispasmodic drug. It is also endowed of a direct myolitic action which partially accounts for its antispasmodic activity.