Taking too much antihistamine can lead to adverse side effects and a potential antihistamine overdose. Signs may include fast heart rate, fever, and dilated pupils. Antihistamines are a class of medication that treat allergy symptoms, such as sneezing, runny nose, and itching...
Share on PinterestA person who overdoses on antihistamines may experience fever, dilated pupils, and a fast heart rate. People can overdose on any type of antihistamine. Antihistamines are a drug, and there is a safe limit to how much a person can take at one time...