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A member asked:

Do sinus/allergy pills affect heart rate? after taking claritin (loratadine) d my heart seems to be going crazy! just going from sitting to standing doubles my hr.

A doctor has provided 1 answer

Yes decongestants: Yes decongestants , such as sudafed will raise heart rate and cause palpitations. So Claritin (loratadine) d will, but plain Claritin (loratadine) is less likely to.

Dr Baxter agreed

Answered 9/17/2016

5.5k views

Thank

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