Understanding Allergy Medication Reactions: Common Side Effects & What to Expect

When someone experiences an allergic reaction to something, the body creates a substance called histamines. Allergy medicine is in effect a histamine blocker that is used for a variety of allergic reactions, from sneezing because of a cedar tree to hives because of anxiety.

General

• The most common reactions to allergy medications include dizziness, drowsiness and constipation. These symptoms may subside as one's body becomes used to the medication.

Dry Mouth

• Dry mouth, another side effect of allergy medication, can be remedied by sucking on candy or ice chips, chewing gum or staying hydrated by drinking water.

Danger

• Notify your doctor immediately if you experience irregular heartbeat, difficulty urinating, seizures or ringing in the ears.

Allergic Reaction

• An allergic reaction to allergy medication can include a rash, trouble breathing, itching, swelling or dizziness. Contact your doctor immediately if any of these occurs.

Reactions

• Certain medications, such as Parkinson's drugs,have a bad reaction with allergy medications. Make sure your doctor knows about all medicine you are taking, and if purchasing allergy medication over-the-counter, be sure to read the label for potential bad interactions.