Related Experiment Video
Updated: Jul 11, 2026

Ocular Therapeutic Delivery and Advanced Tissue Retrieval in Adult Rats
Published on: May 23, 2025
Comparative interaction of few antihypertensive drugs with cyclosporine-A in rats
N Prem Kumar1, M N Inamdar, B V Venkataraman
1Department of Pharmacology, Al-Ameen College of Pharmacy, Lalbagh Road, Bangalore 560 027, India. premkrupanidhi@yahoo.co.in
Abstract:
The maximal endothelial dependent relaxation of isolated aortic rings to cumulative doses of acetylcholine was significantly decreased in the Cyclosporine-A (CSA, 20 mg kg(-1) day(-1)) treated animals compared to olive oil (CSA vehicle) treated control. Administration of antihypertensive drugs like diltiazem, enalapril or propranolol to CSA treated animals augmented the endothelial damage induced by CSA. These drugs also increased the bioavailability of CSA. However, administration of losartan to CSA treated animals produced a significant increase in endothelial dependent relaxation as compared to CSA treated control but did not affect the bioavailability of CSA significantly. The results suggest that losartan is safer compared to other antihypertensives for the treatment of CSA induced hypertension.
Related Concept Videos
Heart Failure Drugs: Inhibitors of Renin-Angiotensin System
Antihypertensive Drugs: Direct Renin Inhibitors
Chronopharmacokinetics: Circadian Rhythms and Influence on Drug Response
The time of drug administration is an important factor to consider, as it can influence the toxic dose of a drug. For example, a study conducted by Prins et al. in 1997 examined the effects of the timing of...
Antihypertensive Drugs: Angiotensin II Receptor Blockers
Antihypertensive Drugs: Angiotensin-Converting Enzyme Inhibitors
Heart Failure Drugs: Diuretics
