I have been taking Diovan 80 for two years and only experienced ringing in my ears, which was tolerable.  Only recently I started to experience a nervous feeling and rapid pounding in my ears.   Is it possible to develop side effects to medications after a few years?  I am also on thyroid medication. Levothyroxin 75, which was changed recently to Levothyroxine.  What do you suggest?

 Talk to your doctor.  You can develop reactions to a medication at any time. Usually reactions occur when you first start taking a drug. You have been taking the Diovan for two years, but just recently changed your thyroid medication. It is more likely your new symptoms are related to your thyroid medication. Some people are sensitive to different brands of the same type of thyroid medication.

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