Zyrtec-D 12 Hour

From WikiMD's Wellness Encyclopedia

Zyrtec-D 12 Hour is an over-the-counter medication used for the relief of symptoms associated with allergies and the common cold. It combines two active ingredients: cetirizine, an antihistamine, and pseudoephedrine, a decongestant. This medication is designed to alleviate nasal congestion, sneezing, runny nose, itchy or watery eyes, and other symptoms caused by the common cold or by allergic reactions to pollen, dust mites, animal dander, and molds. Zyrtec-D 12 Hour is specifically formulated to provide symptom relief for up to 12 hours.

Composition[edit | edit source]

Zyrtec-D 12 Hour contains two primary components:

  • Cetirizine (5 mg) - Acts as an antihistamine, reducing the effects of natural histamine in the body. Histamine can produce symptoms of sneezing, itching, watery eyes, and runny nose.
  • Pseudoephedrine (120 mg) - Serves as a decongestant, shrinking blood vessels in the nasal passages. Dilated blood vessels can cause nasal congestion (stuffy nose).

Indications[edit | edit source]

Zyrtec-D 12 Hour is indicated for the relief of symptoms associated with:

Dosage and Administration[edit | edit source]

Adults and children 12 years of age and older are recommended to take one tablet every 12 hours, not exceeding two tablets in 24 hours. It is important to swallow the tablet whole and not to divide, chew, or crush it.

Side Effects[edit | edit source]

Common side effects of Zyrtec-D 12 Hour may include:

  • Dry mouth
  • Dizziness
  • Fatigue
  • Insomnia
  • Nervousness
  • Gastrointestinal disturbances

Patients are advised to consult a healthcare provider if they experience severe side effects or symptoms that do not improve.

Precautions[edit | edit source]

Before taking Zyrtec-D 12 Hour, individuals should consult with a healthcare provider if they have:

  • High blood pressure
  • Diabetes
  • Thyroid disease
  • Enlarged prostate
  • Heart disease

Interactions[edit | edit source]

Zyrtec-D 12 Hour may interact with other medications, such as MAO inhibitors, and can increase the risk of adverse effects. Patients should inform their healthcare provider about all medications they are taking to avoid potential interactions.

Conclusion[edit | edit source]

Zyrtec-D 12 Hour offers effective relief for individuals suffering from allergy symptoms and the common cold. However, like all medications, it is important to use Zyrtec-D 12 Hour responsibly and under the guidance of a healthcare provider to minimize the risk of side effects and interactions.

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Contributors: Prab R. Tumpati, MD