Diltiazem HCl
Diltiazem HCl (Hydrochloride) is a calcium channel blocker active pharmaceutical ingredient widely used for the treatment of hypertension, angina pectoris, and certain cardiac arrhythmias. By inhibiting calcium ion influx in cardiac and vascular smooth muscle, Diltiazem HCl promotes vasodilation, reduces myocardial oxygen demand, and helps regulate heart rate. Its pharmacological profile supports both acute and chronic management of cardiovascular conditions. Pharmaceutical companies formulate Diltiazem HCl into oral tablets, extended-release capsules, and injectable solutions, offering flexible dosing options for diverse clinical applications.
Common Diltiazem HCl Uses and Treated Conditions
- Hypertension – Lowers blood pressure and reduces cardiovascular risk.
- Angina Pectoris – Alleviates chest pain by improving myocardial oxygen supply and reducing cardiac workload.
- Cardiac Arrhythmias – Helps manage atrial fibrillation, atrial flutter, and other supraventricular tachycardias.
- Combination Therapy – Used alongside other antihypertensives or antianginal agents for enhanced cardiovascular control.
Why Choose Cambrex as Your Generic API Manufacturer?
As a leading generic API supplier, Cambrex manufactures Diltiazem HCl API in cGMP-compliant facilities, ensuring every batch meets stringent global quality and regulatory standards. Our technical expertise, robust quality systems, and proven regulatory track record empower clients to accelerate development timelines and achieve successful market approvals. We prioritize transparency, reliability, and scientific rigor at every stage of the supply chain making us your trusted generic API manufacturer.
For detailed chemical information on Diltiazem HCl, visit the official CAS website.
If you’d like more information or to request a sample, contact our Generic API team today.

Cambrex your API partner
Cambrex are a leading global supplier of generic APIs. From our sites in Italy, Sweden, and the USA, we work with generic drug companies well in advance of drug patent expiration, using high quality, non-patent-infringing processes to manufacture APIs.
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