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 cetirizine 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). Cetirizine has been demonstrated to be safe in children older than 6 months. No dosage adjustment is required in liver disease.
What time of day should you take cetirizine?
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 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.
Is cetirizine safe for long term use?
Cetirizine has a rapid onset of action and long half-life that allows once-daily dosing. Cetirizine is excreted by the kidney. Its use is safe and well-tolerated, even though the most common side effects are mild somnolence and dry mouth, both of them dose-dependent.
Do antihistamines weaken immune system?
Antihistamines, with their ability to disrupt the immune response that leads to annoying reactions like runny noses and swelling tissues, have long been considered the ideal way to control allergies. But their long-term effects on the immune system are unknown.
Is cetirizine used for cold?
Cetirizine is used to treat cold or allergy symptoms such as sneezing, itching, watery eyes, or runny nose.
Can I take 2 cetirizine a day?
Adults and children 6 years and older can take cetirizine capsules and tablets. 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.
Can cetirizine cure sore throat?
Cetirizine is used to temporarily relieve the symptoms of hay fever (allergy to pollen, dust, or other substances in the air) and allergy to other substances (such as dust mites, animal dander, cockroaches, and molds). These symptoms include sneezing; runny nose; itchy, red, watery eyes; and itchy nose or throat.
What can you not take with cetirizine?
Do not use with any other antihistamines applied to the skin (such as diphenhydramine cream, ointment, spray) because increased side effects may occur. Cetirizine is very similar to hydroxyzine and levocetirizine. Do not use these medications while using cetirizine.
What happens if I take 2 cetirizine?
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.
Does cetirizine weaken immune system?
Cetirizine does not influence the immune response.
Is cetirizine good for cough?
This study shows that cetirizine treatment reduces cough intensity (P < 0.05) and frequency (P < 0.01). In conclusion, cetirizine does clinically improve cough due to pollen allergy.
What are the side effects of long term use of antihistamines?
These common side effects include sedation, impaired motor function, dizziness, dry mouth and throat, blurred vision, urinary retention and constipation. Antihistamines can worsen urinary retention and narrow angle glaucoma. The antihistamines rarely cause liver injury.
Which is better loratadine or cetirizine?
It is effective in treating upper respiratory allergies while causing less drowsiness. Claritin is a common medication containing loratadine. Many individuals report Claritin as being useful as a decongestant. While patients have reported that cetirizine hydrochloride works faster, loratadine lasts longer.
Which is better levocetirizine or cetirizine?
Levocetirizine, the R-enantiomer of cetirizine, has been found to be less sedating relative to placebo than was cetirizine in separate trials. We plan to examine whether patients who did not tolerate cetirizine due to sedation are able to tolerate levocetirizine.