Zyrtec is used for:

Preventing or treating symptoms of hay fever and other upper respiratory allergies such as stuffy nose, runny nose, sneezing, itching of the nose and throat, and itchy, watery eyes. It is also used for preventing or treating chronic hives. It may also be used for other conditions as determined by your doctor.Zyrtec is an antihistamine. It works by blocking the action of histamine and reduces the symptoms of an allergic reaction.

How to use Zyrtec:

Use Zyrtec as directed by your doctor. Check the label on the medicine for exact dosing instructions.

• Take Zyrtec by mouth with or without food.
• If you miss a dose of this medicine, take it as soon as possible. If it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not take 2 doses at once.

Ask your health care provider any questions you may have about how to use Zyrtec.

Possible side effects of Zyrtec:

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome:

• Drowsiness; dry mouth; stomach pain (in children); tiredness; trouble sleeping (in children).

Seek medical attention right away if any of these SEVERE side effects occur:

• Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue; unusual hoarseness); dark urine; fainting; fast or irregular heartbeat; mental or mood changes; persistent fatigue; seizures; severe dizziness; unusual bruising or bleeding; yellowing of eyes or skin.

This is not a complete list of all side effects that may occur. If you have questions or need medical advice about side effects, contact your doctor or health care provider.

Proper storage of Zyrtec :

Store Zyrtec at 77 degrees F (25 degrees C). Brief storage at temperatures between 59 and 86 degrees F (15 and 30 degrees C) is permitted. Store away from heat, moisture, and light. Do not store in the bathroom. Keep Zyrtec out of the reach of children and away from pets.