Contents Loratadine and pregnancy Generic Name(S): loratadine Mixing Alcohol and Cold Medicine What is Claritin? While Claritin doesn’t usually cause drowsiness on its own, this side effect is more likely when alcohol is present. According to the National Institute on Alcohol Abuse and Alcoholism , alcohol can interact with antihistamines like Claritin. However, loratadine, desloratadine […]