During which condition should Olmesartan be avoided?

Olmesartan is an angiotensin II receptor blocker (ARB) commonly prescribed for hypertension. Its use is contraindicated during pregnancy due to the potential for serious harm to the developing fetus. During pregnancy, angiotensin II receptor blockers can lead to complications such as fetal renal dysfunction, oligohydramnios (low amniotic fluid), and even intrauterine death. The drug can interfere with the normal development of the fetal cardiovascular and renal systems, making it essential to avoid its use during this critical time.

In contrast, while hypotension could be a concern in those taking antihypertensives, it does not provide a direct contraindication to Olmesartan itself. Similarly, asthma is not a known contraindication for Olmesartan, and many patients with chronic kidney disease may still be prescribed this medication under careful monitoring, as ARBs can offer renal protective effects in certain cases. Therefore, the correct understanding of when to avoid Olmesartan pertains specifically to its risk to pregnancy.