Zyrtec is the brand name of cetirizine, an over-the-counter (OTC) antihistamine used to treat cool and sensitivity side effects, for example, sniffling, tingling, watery eyes, or runny nose.

Cetirizine is additionally used to treat tingling and swelling brought on by perpetual hives.

Made by McNeil-PPC, Inc, Zyrtec comes as tablets, chewable tablets, and syrup.

Zyrtec was a professionally prescribed solution until 2007 when The Food and Drug Administration (FDA) affirmed it as an OTC pharmaceutical.

Zyrtec-D is a mixture of the main ingredient of Zyrtec (cetirizine) with the decongestant pseudoephedrine and is approved to treat cold or allergy symptoms, including:

• Nasal and sinus congestion
• Sneezing
• Itching
• Watery eyes
• Runny nose

Zyrtec Side Effects
Call the doctor immediately if you take Zyrtec as well as have any of the following serious side effects:

• Fast, pounding, or uneven heartbeat
• Weakness, tremors, or sleep problems
• Severe restless feeling, hyperactivity
• Confusion
• Problems with vision
• Urinating less than usual or not at all
•
Lesser serious side effects from taking Zyrtec may include the following:

• Dizziness
• Drowsiness
• Tired feeling
• Dry mouth
• Sore throat
• Cough
• Nausea
• Constipation
• Headache