This is Dr Basu, experienced Internal Medicine Specialist.
I am here to address your concerns and provide great service.
Zestoretic is a combination of lisinopril and hydrochlorothiazide.
Hydrochlorothiazide is a diuretic and can cause fast heart beats as side effect.
So thumping can be a side effect.
Not a serious one but should be aware of.
High blood pressure is another cause.
You can start on the betablocker to counteract this side effect.
Please inform your doctor also.
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