Best answer: How frequently can you take Zyrtec?

The usual dosage for adults younger than 65 years and children who are 6 years and older is one 10-milligram (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 it OK to take Zyrtec everyday?

Can be taken once a day. May be given daily on a regular basis when allergens are most prevalent (such as during spring or summer). Zyrtec does not appear to interact with many drugs (theophylline slightly decreased the clearance of Zyrtec). Zyrtec has been demonstrated to be safe in children older than 6 months.

Can I take 20 mg of Zyrtec a day?

Four small studies suggest that cetirizine 20 mg daily may improve symptoms in adults with severe chronic urticaria. In Okubo et al (2013), itching and weals improved in people who took cetirizine 20 mg daily or olopatadine 5 mg twice daily as a dose increase from cetirizine 10 mg.

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What happens if you take a lot of Zyrtec?

Some side effects of taking antihistamines can mimic symptoms of an overdose. These include mild nausea, dizziness, vomiting, diarrhea, and stomach pain. These symptoms don’t usually require medical treatment, and may subside as your body adjusts to the medication. Even so, check with a doctor if you have side effects.

What is the maximum amount of Zyrtec per day?

The recommended initial dose of ZYRTEC in children aged 2 to 5 years is 2.5 mg (½ teaspoon) syrup once daily. The dosage in this age group can be increased to a maximum dose of 5 mg per day given as 1 teaspoon syrup once a day or one ½ teaspoon syrup given every 12 hours, or one 5 mg chewable tablet once a day.

What are the side effects of long term use of Zyrtec?

That said, Cetirizine can cause adverse effects, such as:

  • some drowsiness.
  • excessive tiredness.
  • dry mouth.
  • stomach pain.
  • diarrhea.
  • vomiting.

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.

Can I take 40 mg of Zyrtec?

In fact, current European guidelines recommend up to four times the usual recommended dose of antihistamine in patients who symptoms persist with standard therapy [12]. For example, doses of up to 40 mg of cetirizine, 20 mg of desloratadine, and 480 mg of fexofenadine may be used in adults.

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Can I double up on Zyrtec?

Do NOT “double-up” on a dose. Do NOT take a dose sooner than you’re supposed to. Do NOT take two different antihistamines at the same time. Instead, talk to your doctor or pharmacist if you have trouble finding a drug that works well for your allergy symptoms.

Can you take more than 1 Zyrtec?

You might only need to use one dose of Zyrtec. Or, if you have chronic or seasonal allergies, you may need to take it regularly to prevent symptoms during the time your allergies are active.

Can Zyrtec make you gain weight?

Antihistamines that can cause weight gain include: Diphenhydramine (Benadryl and others) Cetirizine (Zyrtec)

Can I take 2 Zyrtec a day?

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.

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.

How quickly does Zyrtec work?

Most people experience at least 24 hours of relief after a single dose. Zyrtec, on the other hand, is fast acting. People who take it may feel relief in as little as one hour. Antihistamines like Zyrtec and Claritin are designed to calm the histamine reaction your body has when it’s exposed to an allergen.

Can you take Zyrtec every 12 hours?

take 1 tablet every 12 hours; do not take more than 2 tablets in 24 hours.

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What are the side effects of Zyrtec?

Common side effects of Zyrtec include:

  • drowsiness,
  • fatigue,
  • tired feeling,
  • dizziness,
  • dry mouth,
  • sore throat,
  • cough,
  • nausea,
No runny nose