A 43-year-old member asked:
How long does it take for benicar (olmesartan) 20mg to start working?
2 doctor answers • 9 doctors weighed in

Dr. Daniel Chappellanswered
Family Medicine 13 years experience
Benicar (olmesartan): Benicar (olmesartan) is an angiotensin receptor binder or arb anti-hypertensive. It is absorbed and quickly metabolised in the gut. On average the drug should begin working within 20-40 minutes of ingestion. It works on a complex feedback system and can take up to two weeks before seeing any effects on your blood pressure. After two weeks your doctor may decide to adjust the dose if no benefits are seen.
Created for people with ongoing healthcare needs but benefits everyone.
6.1k viewsReviewed >2 years ago

Dr. Vasudev Ananthramanswered
Cardiology 34 years experience
About 3 days: The half life if Benicar (olmesartan) is 13 hours and a drug takes five half lifes to reach a steady state in the blood stream. That makes it 65 hours or approx 3 days.
Created for people with ongoing healthcare needs but benefits everyone.
6k viewsReviewed >2 years ago
Similar questions
A 47-year-old member asked:
How long does it take for med Benicar (olmesartan) to start working and to get out of your system?
2 doctor answers • 4 doctors weighed in

Dr. Bennett Werneranswered
Cardiology 46 years experience
Pharmacodynamics: The half life of Benicar (olmesartan) is 13 hours. That means it will reach steady state in about 65 hours and will take about the same amount time to wear off. That said, the usual practice is to give a new anti-hypertensive drug several weeks to have a full physiological effect.
Created for people with ongoing healthcare needs but benefits everyone.
4k viewsReviewed >2 years ago
A 39-year-old member asked:
How long before Benicar (olmesartan) take effect?
1 doctor answer • 2 doctors weighed in

Dr. William Lizarragaanswered
Internal Medicine 18 years experience
Within a day: Benicar or olmesartan should be largely absorbed and taking effect within the first day. Most people will see an effect much sooner than this.
Created for people with ongoing healthcare needs but benefits everyone.
4.9k viewsReviewed >2 years ago
Last updated Feb 15, 2021
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