Scopolamine HBr trihydrate (CAS No 6533-68-2) is utilized in biomedical research primarily within the pharmacological and neuroscientific fields It is derived from the plant family Solanaceae acting as a non-selective muscarinic antagonist By targeting the muscarinic acetylcholine receptors it effectively blocks acetylcholine action impacting neurotransmission pathways Its in vitro activity is generally observed in the nanomolar to low micromolar range making it a potent compound for detailed studies Scopolamine HBr trihydrate is commonly applied in cell models and animal studies to investigate neurological conditions such as memory impairment and motion sickness It is also used in drug screening to evaluate the efficacy of new therapeutic agents targeting cognitive disorders Experimental concentrations typically depend on the specific research design employed by investigators