Allergies Home > Serious Reactions to Claritin
Serious Side EffectsSome side effects with Claritin, while occurring infrequently, are potentially serious and should be reported immediately to your healthcare provider. As with most recently approved non-prescription products, Claritin is usually safe to use and rarely causes serious side effects. These serious side effects include but are not limited to:
- Wheezing or other breathing problems
- Signs of an allergic reaction, such as:
- An unexplained rash
- Unexplained swelling, especially of the lips, mouth, or throat.