what happens if you take 2 allergy pills

Taking two allergy pills, especially antihistamines, can lead to an overdose, which can result in adverse side effects. The symptoms of an antihistamine overdose may include increased drowsiness, nausea, vomiting, fast heart rate, trouble breathing, seizures, and in severe cases, loss of consciousness. It is important to follow the dosage guidelines on the packaging or the advice of a doctor to avoid an overdose. If a person accidentally takes two pills instead of one, their symptoms may not be serious, but a larger overdose, especially in children or older adults, may cause serious symptoms. It is crucial to seek medical help or call a poison control center if an overdose occurs. It is not recommended to combine similar types of allergy medicines or change the prescribed dosage without consulting a doctor, as this could have negative effects on health.