What drugs or food substances affect palpitations?
Caffeinated beverages such as cocoa, coffee, tea, pepsi or coke are one of the common causes of palpitations. Too much alcohol also leads to fast heartbeat. Reducing the intake usually helps with the symptoms. Some cold medicines and decongestants are known to cause palpitations in high doses. Other examples of medication overdose are thyroid hormone replacements and certain antidepressants.