Clentiazem is a benzothiazepine-derivative calcium channel blocker related to diltiazem, developed for cardiovascular applications including angina and hypertension. Simson Pharma's Clentiazem reference standard supports compendial testing for this cardiovascular agent.

Simson Pharma Global Ltd. (UK) and Simson Pharma Global LLC (USA) supply high-quality Clentiazem Reference Standards, pharmacopoeial reference materials, and its related impurities to pharmaceutical manufacturers, CROs, analytical laboratories, universities, and regulatory organizations worldwide. To service the Europe and America market efficiently, Simson Pharma Limited has set up Simson Pharma Global Ltd. in United Kingdom and Simson Pharma Global LLC in USA respectively.