Zyrtec (generic: Cetrizine HCl)

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Zyrtec^®
(generic name: Cetirizine Hydrochloride)

Zyrtec is the brand name of a drug Cetirizine Hydrochloride.

Zyrtec-D is the brand name of a drugs Cetirizine Hydrochloride and Pseudoephedrine Hydrochloride.
Cetirizine HCl (generic name of Zyrtec) is an antihistamine. It blocks the actions of the naturally occurring chemical histamine in the body. It is less likely than some other antihistamines to cause side effects such as drowsiness and dizziness.
Cetirizine HCl is used to treat the symptoms of allergies such as sneezing; runny nose; itching, tearing, and redness of the eyes; and hives.

What happens if I miss a dose?
If you are taking cetirizine on a regular schedule, take the missed dose as soon as you remember. However, if it is almost time for the next dose, skip the missed dose and take only the next regularly scheduled dose. Do not take a double dose.
If you are taking cetirizine as needed, take the missed dose if it is needed, then wait the recommended or prescribed amount of time before taking another dose.

What happens if I overdose?
Seek emergency medical attention if an overdose is suspected.
Symptoms of a cetirizine overdose are not well known but may include drowsiness.

What are the possible side effects?
Stop taking cetirizine and seek emergency medical attention if you experience a rare but serious allergic reaction (difficulty breathing; closing of the throat; swelling of the lips, tongue, or face; or hives).
Other, less serious side effects may be more likely to occur. Continue to take cetirizine and talk to your doctor if you experience:

• drowsiness;

• dizziness;

• headache;

• dry mouth.

Side effects other than those listed here may also occur. Talk to your doctor about any side effect that seems unusual or that is especially bothersome.

Where to buy Zyrtec (Cetirizine HCl)?
Zyrtec is available over-the-counter in any online pharmacy (Walgreens, for instance). Given that you don't need a prescription, maybe a cheaper place for online buying is Amazon. There are also many generic versions (with Cetirizine HCl as an active ingredient) available on the market. They are cheaper than the brand Zyrtec. Click here to check out the generic versions sold on Amazon.