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A 64-year-old male asked:

About how many days may it take for my body to adjust from 100 mgs. verapramil er to 240 er? within hours or a few days? peak plasma level: hours.

1 doctor answer1 doctor weighed in
Dr. Donald Colantino
Internal Medicine 62 years experience
Verapamil: After prescribing this medication for hypertension, I would expect improvement in bp after taking the increased dose for a day or two. I would ask your pharmacist for information about peak plasma levels,etc

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