Claritin is an antihistamine that relieves the sneezing, runny nose, stuffiness, itching, and tearing eyes caused by hay fever or other upper respiratory allergies. It also relieves the swollen, red, itchy patches of skin caused by hives. Claritin is also available as an over-the-counter product.

If you have liver or kidney disease, your doctor should prescribe a lower starting dose of Claritin.

Claritin is available in syrup, regular tablets, and rapidly dissolving tablets called Reditabs. The Reditabs should be placed on the tongue rather than swallowed. They disintegrate rapidly and can be taken with or without water.

--If you miss a dose...

Take the forgotten dose as soon as you remember. If it is almost time for your next dose, skip the one you missed. Never take two doses at the same time.

--Storage instructions...

Claritin can be stored at room temperature. The Reditabs should be kept in a dry place. Use them within 6 months after opening the foil pouch in which they are packed. Take each tablet immediately after removing it from its individual blister.

Side effects cannot be anticipated. If any develop or change in intensity, inform your doctor as soon as possible. Only your doctor can determine if it is safe for you to continue taking Claritin.

• More common side effects may include:
  Dry mouth, fatigue, headache, sleepiness

Do not take Claritin if you are sensitive to or have ever had an allergic reaction to it. Make sure your doctor is aware of any drug reactions that you have experienced.

Although no harmful interactions with Claritin have been reported, there is a theoretical possibility of an interaction with the following drugs:

Antibiotics such as erythromycin
Cimetidine (Tagamet)
Ketoconazole (Nizoral)