Guide To Over-The-Counter Antihistamines
Loratadine

Loratadine helps relieve cold and allergy symptoms. This includes sneezing, skin rashes, watery eyes, hives, and a runny nose. In addition, it can treat hives and itching associated with chronic skin conditions. Patients with asthma, liver issues, or kidney conditions should check with a pharmacist or doctor before taking this antihistamine. Individuals with allergies to desloratadine should not take it.
The chewable forms of this medication could contain phenylalanine. Thus, phenylketonuria patients should consult their doctor first. Loratadine may cause drowsiness. Other commonly reported side effects include headaches, stomach pain, vomiting, dry mouth, hyperactivity, and anxiety. Patients should stop using this medication immediately and call their doctor if they develop a severe headache, a fast or irregular heartbeat, or feel lightheaded.