Can I Take 20 Mg Zyrtec A Day?

How many milligrams of Zyrtec can you take a day?

Adults and Children 12 Years and Older: The recommended initial dose of ZYRTEC is 5 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, with or without food..

What happens if you accidentally take two Zyrtec?

If a healthy adult takes only a slightly higher dose of antihistamine, such as accidentally taking two pills instead of one, their symptoms may not be serious, or they may not have any symptoms. However, a larger overdose, especially in children or older adults, may cause serious symptoms.

Can I take 40 mg of Zyrtec?

In patients who do not achieve adequate symptom control at standard doses, it is common practice to increase the antihistamine dose beyond the usual recommended dose. … For example, doses of up to 40 mg of cetirizine, 20 mg of desloratadine, and 480 mg of fexofenadine may be used in adults.

Can I take 2 allergy pills a day?

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 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. … If side effects are not tolerated well or if they lead to increased anxiety, alternative treatments for allergies should be considered.

How many hours does cetirizine last?

It is eliminated in the urine via an active transport mechanism. The elimination half-life of cetirizine ranges from 6.5 to 10 hours in healthy adults, with a mean across studies of approximately 8.3 hours. Its duration of action is at least 24 hours.

Can I take 20mg of Zyrtec?

Taking 10mg of Zyrtec is more effective than taking 5mg; taking 20mg appears not to provide any additional effect. Food has no effect on the overall absorption of Zyrtec; however, it may increase the time it takes for peak levels of Zyrtec to be reached in the blood.

Can I take 2 cetirizine 10mg in a day?

Cetirizine comes as tablets and capsules (10mg) and as a liquid medicine (labelled either 5mg/ml or 1mg/1ml). The usual dose in adults is 10mg once daily. … Depending on their age, children may take cetirizine twice a day. In this case, try to space the doses 10 to 12 hours apart.

Can I take two cetirizine at once?

What should I do if I missed a dose of ZyrTEC? Take the medicine as soon as you can, but skip the missed dose if it is almost time for your next dose. Do not take two doses at one time.

How much antihistamine can I take in 24 hours?

Adults—1 to 2 milligrams (mg) every eight to twelve hours as needed. Children 12 years of age and older—0.5 mg to 1 mg two times a day as needed. Children 4 to 12 years of age—Use and dose must be determined by your doctor. Children and infants up to 4 years of age—Use is not recommended .

Can taking too much allergy medicine hurt you?

“If you take too much or take it in combination with alcohol, it can depress the body too much, to the point you go into a coma and die,” said Sheri Fandrey from the AFM. Some pharmacists try to prevent abuse by keeping drugs like Benadryl and Gravol locked up or behind the pharmacist’s counter.

Is cetirizine anti inflammatory?

Abstract. Leukotrienes are potent lipid mediators involved in acute and chronic inflammatory processes and allergic inflammation. Cetirizine is an H1-receptor antagonist used in the treatment of allergic symptoms. … The data provide evidence that cetirizine exerts anti-inflammatory effects apart from H1 antagonism.

What happens if you take 2 hayfever tablets in one day?

Taking more tablets than you’re supposed to can cause blurred vision, headaches, sedation, enlarged pupils, restlessness, itching, dry mouth and /or ringing in the ears. More serious cases may experience tremors, palpitations, seizures and hallucinations.

What happens if you accidentally take 4 Benadryl?

An overdose of Benadryl may result in extreme drowsiness, blurred vision, increased heart rate, confusion, seizures – even coma. Other symptoms may include dry mouth, nausea, vomiting, unsteadiness, high blood pressure, and hallucinations.