Often asked: How often can you take zyrtec allergy medicine?

Can I take Zyrtec twice a day?

Key facts

It’s usual to take cetirizine once a day. Children sometimes take it twice a day. Cetirizine is classed as a non-drowsy antihistamine, but some people still find it makes them feel quite sleepy. Common side effects include headaches, dry mouth, feeling sick, dizziness, stomach pain and diarrhoea.

What happens if you take Zyrtec twice?

There have been reports of patients taking 15-18 times the recommended dose of Zyrtec (recommended dose is 10 mg) and having some adverse effects (restlessness, irritability, somnolence). Taking two 10mg tablets should not cause you to have any serious problems.

Is it better to take Zyrtec at night or in the morning?

Cetirizine can be taken at any time of the day. In most people it is non-sedating, so they take it in the morning. However, a percentage of people do find it to be sedating so if it does make you drowsy it is best to take it in the evening. Cetirizine can be taken with or without food.

How many Zyrtec do you take a day?

The recommended initial dose of ZYRTEC is 5 mg or 10 mg per day in adults and children 12 years and older, depending on symptom severity. Most patients in clinical trials started at 10 mg. ZYRTEC is given as a single daily dose.

How long does Zyrtec last in your system?

by Drugs.com

The elimination half-life of Zyrtec is between 8 to 9 hours. It takes approximately 5.5 x elimination half-life for a medicine to be cleared from your system. For Zyrtec this is 5.5 x 9 hours which is about 2 days.

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What happens when you stop taking Zyrtec?

Upon discontinuing zyrtec, you may experience disabling generalized and severe itching without a rash or sometimes with a rash. The itching can occur anywhere on your body-but almost always on the palms and soles. The itching is often severe and unrelenting and often is not associated with a rash.

Can you become immune to Zyrtec?

According to Erstein, it’s entirely possible to develop a tolerance to either medication, so the Zyrtec you‘ve been using daily may feel like it’s losing effectiveness over time.

Can Zyrtec cause anxiety?

Antihistamines are known to cause extreme drowsiness; however, in certain people, they can cause insomnia, excitability, anxiety, restlessness, and a rapid heart rate.

Can Zyrtec make you gain weight?

Antihistamines can also make you feel tired and unmotivated to exercise. Antihistamines that can cause weight gain include: Diphenhydramine (Benadryl and others) Cetirizine (Zyrtec)

Is it bad to take Zyrtec everyday?

“The most common side effects you tend to see are fatigue, headaches, and dry mouth,” says Shih. If you’re someone for whom the benefits of regular antihistamine use far outweighs the occasional minor side effect, longterm use is safe for most adults and children, he adds.

Is Zyrtec bad for your liver?

Outcome and Management. Acute liver injury from cetirizine and levocetirizine is rare and usually self-limited. Acute liver failure and vanishing bile duct syndrome have not been linked to these second generation antihistamines. Recurrence of liver injury has been described in patients who restart cetirizine.

What month is allergy season over?

“Tree pollen season is usually at the beginning of spring in March, April, and the first half of May while the grass pollen season is typically mid-May through early-to-mid-July,” he says. “And the ragweed season is usually from mid-August until that first frost.”

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Can you take Zyrtec 10 mg twice a day?

The usual dosage for adults younger than 65 years and children who are 6 years and older is one 10milligram (mg) dose per day. You shouldn’t take more than 10 mg in 24 hours. Your doctor may recommend a 5-mg dose once or twice per day if your allergies are mild.

Is Zyrtec the same as Benadryl?

A main difference between Benadryl and Zyrtec is that Zyrtec tends to cause less drowsiness and sedation than Benadryl. Both Benadryl and Zyrtec are available in generic form and over-the-counter (OTC).

Who should not take Zyrtec?

You should not use this medicine if you are allergic to cetirizine or levocetirizine. Cetirizine injection is not for use in children young than 6 years old who have liver or kidney disease. Ask a doctor or pharmacist if it is safe for you to take cetirizine oral if you have any medical conditions.

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