Zyrtec Drops

Zyrtec Drops, manufactured by Dr. Reddy's Laboratories Ltd., is an antihistamine medication primarily used to alleviate various allergic symptoms.

Name

• Common Name: Zyrtec Drops, Zyrtec Oral Drops
• Brand Name: ZYRTEC DROPS by DR REDDY S LABORATORIES LTD

Composition

Zyrtec Drops contains Cetirizine dihydrochloride as its active ingredient, typically at a concentration of 10 mg/mL (equivalent to 2.5 mg per 5 drops or 10 mg per 20 drops). Inactive ingredients include glycerol, propylene glycol, saccharin sodium, methylparahydroxybenzoate, propylparahydroxybenzoate, sodium acetate, glacial acetic acid, and purified water. Some formulations may also contain banana flavour.

Uses

Zyrtec Drops is prescribed for the relief and prevention of allergic reactions. It is effective against symptoms associated with:

• Hay fever (Seasonal Allergic Rhinitis): Sneezing, runny nose, itchy nose, red/itchy/watery eyes.
• Perennial Allergic Rhinitis: Dust or pet allergies.
• Urticaria (Hives) and Itchy Skin Rash: Including swelling, redness, and itching of the skin.
• Reactions to insect bites and stings.

Dosage and Administration

The dosage varies by age and severity of symptoms. Zyrtec Drops can be taken with or without food and may be mixed with liquid for easier administration. A marked dropper should be used for accurate dosing.

• Children 1-3 years (up to 14 kg): 4 drops twice daily, maximum 2 doses in 24 hours.
• Children 2 to under 6 years: 2.5 mL (5 drops) once daily; can be increased to a maximum of 5 mL (10 drops) once daily or 2.5 mL (5 drops) every 12 hours. Do not exceed 5 mL in 24 hours.
• Children 6 to 11 years: 5 mg (10 drops) twice daily or 10 mg (20 drops) once daily.
• Children over 12 years and Adults: 10 mg (20 drops or 10 ml oral solution) once daily. A starting dose of 5 mg (10 drops or 5 ml) may be sufficient for some. Maximum dose is 10 mg/day.

Side Effects

Common side effects may include:

• Drowsiness, sleepiness, tiredness, fatigue
• Headache (more common in children)
• Abdominal pain, stomach pain
• Dizziness
• Dry mouth, sore throat
• Nausea, vomiting, diarrhea
• Nose bleeds

Serious or rare side effects can include severe itching after stopping long-term use, mood or behavior changes, and liver problems. Seek immediate medical attention if signs of an allergic reaction occur, such as hives, difficulty breathing, or swelling of the face, lips, tongue, or throat.

Precautions

• Drowsiness: Zyrtec Drops can cause drowsiness, affecting alertness. Patients should exercise caution when driving or operating machinery.
• Alcohol and Sedatives: Avoid concurrent use with alcohol, sedatives, or tranquilizers as this can increase drowsiness and impair thinking.
• Children: Consult a doctor before administering to children under 2 years of age (or under 12 months in some regions).
• Medical Conditions: Use with caution in patients with liver or kidney disease. Dose adjustments may be necessary, and it is not recommended for severe kidney disease requiring dialysis.
• Pregnancy and Breastfeeding: Consult a doctor if pregnant or breastfeeding, as Zyrtec passes into breast milk.
• Allergy Testing: Zyrtec can affect allergy test results; it is advisable to stop taking the medication several days before testing.
• Exceeding Dose: Do not exceed the prescribed dose to avoid potential overdose.
• Excipients: Contains methylparahydroxybenzoate and propylparahydroxybenzoate, which may cause delayed allergic reactions.

Storage

Store Zyrtec Drops below 30°C (or between 20°-25°C) in a cool, dry place, protected from sunlight and light. Keep the medicine out of sight and reach of children. Do not use the solution after 3 months of first opening the bottle. Do not freeze.

Zyrtec Drops, manufactured by Dr. Reddy's Laboratories Ltd, contain the active ingredient cetirizine, which is a second-generation antihistamine used to relieve various allergy symptoms.

What is Zyrtec Drops used for?

Zyrtec Drops are primarily used to treat and prevent allergic reactions. They are effective for conditions such as hay fever (seasonal allergic rhinitis), year-round allergies like those caused by dust mites or pet dander (perennial allergic rhinitis), and urticaria (hives), which involves swelling, redness, and itchiness of the skin. The medication helps alleviate common allergy symptoms including a blocked, runny, or itchy nose; sneezing; and red, watery, or itchy eyes and skin rashes.

How does Zyrtec Drops work?

Zyrtec Drops contain cetirizine, an antihistamine that works by blocking the effects of histamine. Histamine is a chemical messenger naturally produced by the body during an allergic reaction, leading to symptoms like itching, sneezing, and watery eyes. By blocking histamine, Zyrtec Drops help to decrease these allergy symptoms.

What is the usual dosage for Zyrtec Drops?

The dosage of Zyrtec Drops varies based on age and should always be followed as prescribed by a doctor, especially for children.

• Children 6 months to 2 years: 2.5 mg (2.5 mL of a 1 mg/mL solution) orally once daily. If needed, the dose may be increased to a maximum of 5 mg (5 mL) once daily or 2.5 mg (2.5 mL) every 12 hours, but not more than 5 mL in 24 hours.
• Children 2 to 5 years: 2.5 mg (2.5 mL) orally once daily, which can be increased to 5 mg (5 mL) once daily or 2.5 mg (2.5 mL) every 12 hours. Do not exceed 5 mL in 24 hours.
• Children 6 to 11 years: 5 to 10 mg (5 to 10 mL) once daily, depending on symptom severity. Do not exceed 10 mL in 24 hours.
• Adults and children 12 years and older: 10 mg (20 drops or 10 mL of 1 mg/mL solution) once daily. The maximum dose is 10 mg per day. Measure the dose carefully with the provided dropper or a special measuring device, not a household spoon.

What are the possible side effects of Zyrtec Drops?

Common side effects may include drowsiness or feeling sleepy, abdominal pain (especially in children), headache, dizziness, dry mouth, sore throat, nausea, vomiting, fatigue, and diarrhea. If these side effects persist or worsen, it's advisable to consult a doctor. Rarely, some individuals might experience severe itching after discontinuing long-term daily use of Zyrtec. More serious but rare side effects can include mood changes and liver problems.

Is Zyrtec Drops safe during pregnancy or breastfeeding?

• Pregnancy: While Zyrtec (cetirizine) is considered relatively low risk during pregnancy, research is limited. Most guidelines suggest using it only if the potential benefits outweigh the risks, and some doctors may advise against its use in the first trimester. The lowest effective dose should be used for the shortest duration. Always consult your doctor if you are pregnant, planning to become pregnant, or become pregnant while taking this medicine.
• Breastfeeding: Small amounts of cetirizine pass into breast milk, but it is generally considered compatible with breastfeeding, with no significant problems reported in nursing infants. However, it's important to observe the baby for any signs of increased drowsiness or other potential side effects. While some product labels recommend avoiding it, your healthcare provider can help determine if Zyrtec is the best option for you while breastfeeding.

Can Zyrtec Drops be taken with other medications?

Zyrtec Oral Drops should be used with caution if you are taking other medications that cause drowsiness, such as alcohol, sedatives, or tranquilizers, as this can increase sleepiness and reduce mental alertness. It is recommended to avoid alcohol while taking Zyrtec. Also, avoid taking Zyrtec with other antihistamines containing hydroxyzine or levocetirizine. If you are scheduled for allergy skin testing, inform your doctor, as Zyrtec may affect the test results.

What precautions should be taken while using Zyrtec Drops?

Due to the potential for sleepiness or dizziness, it is advised to exercise caution when driving or operating machinery until you know how the medication affects you. Inform your doctor if you have existing medical conditions such as kidney disease, liver problems, epilepsy, or difficulty passing urine, as dose adjustments or special care may be needed. Do not take Zyrtec Drops if you are allergic to cetirizine or any of its ingredients. It is important not to exceed the prescribed dose.

What happens if a dose is missed?

If you miss a dose of Zyrtec Drops, take it as soon as you remember. However, if it is almost time for your next scheduled dose, skip the missed dose and resume your regular dosing schedule. Do not take a double dose to make up for a missed one.

How should Zyrtec Drops be stored?

Zyrtec Drops should be stored in a cool and dry place, away from direct sunlight, and out of the sight and reach of children. Typically, it should be stored at room temperature between 15°C and 30°C (59°F and 86°F) or below 30°C. After the bottle is first opened, some formulations should not be used after 3 months, so always check the product label for specific instructions.