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. 

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.

Metaxalone is a muscle relaxant used to relax muscles and relieve pain caused by strains, sprains and other musculoskeletal conditions. Its exact mechanism of action is not known, but it may be due to general central nervous system depression.

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.