citric acid monohydrate

Bell's Simple Linctus is an over-the-counter (OTC) cough syrup manufactured by Bell's Healthcare, primarily used for the symptomatic relief of mild, non-specific acute coughs. Its active ingredient is citric acid monohydrate (125 mg per 5 ml for adults; 31.25 mg per 5 ml in the paediatric formulation), which functions as a demulcent. The drug works through a mechanical mechanism of action, forming a soothing, protective coating over the pharyngeal mucosa to reduce throat irritation and the sensory impulse to cough. It is a standard British Pharmacopoeia (BP) preparation and is frequently utilized as an active comparator in clinical research, such as the Phase 3 trial evaluating the antitussive CS1002. The product is available without a prescription and is generally indicated for adults and children over 12 years of age, though a paediatric formulation also exists.

Brand names

Bell's Simple LinctusBell's Simple Linctus BP

Other names

Simple LinctusBell's Simple Linctus