Get emergency medical help if you have signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
Common side effects may include:
dry mouth, sore throat;
muscle pain;
drowsiness, tiredness; or
menstrual pain.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
 Desloratadine side effects (more detail)
