Drug class: Antihistamines Medically reviewed by Drugs.com. Last updated on Mar 11, 2022. one 10 mg tablet once daily; do not take more than one 10 mg tablet in 24 hours.
ZYRTEC 10 mg film-coated tablets
The maximum recommended daily dose is 20 mg, do not exceed this dose, unless told to do so by your doctor.
Taking more than the usual dose is unlikely to harm you or your child. If you take an extra dose, you might get some of the common side effects. If this happens or you're concerned, contact your doctor.
Adults and children 6 years and older Chew and swallow 2 tablet (10 mg) once daily; do not take more than 1 tablet (10 mg) in 24 hours. A 5 mg product may be appropriate for less severe symptoms.
For relief of symptoms from seasonal or yearly allergies: Adults and children 12 years of age and older—Take one tablet two times a day with or without food.
take 1 tablet every 12 hours; do not take more than 2 tablets in 24 hours.
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.
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This is a therapeutic duplication and it is usually recommended to take only one antihistamine at any time, however if you have been prescribed to take both together then it is appropriate.
If you have seasonal allergies and notice that your allergy medicine stops working, it might be because you've developed new allergies. People rarely develop a tolerance to allergy medications. Common medications like Zyrtec, Allegra, Flonase, and Claritin don't usually stop working.
Drug class: Antihistamines
one 10 mg tablet once daily; do not take more than one 10 mg tablet in 24 hours. A 5 mg product may be appropriate for less severe symptoms.
Take 1 tablet every 12 hours; do not take more than 2 tablets in 24 hours.
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.
Yes, you can take cetirizine (Zyrtec) only when you need it if you have allergy symptoms once in a while. But if you have allergy symptoms on a daily basis, taking it regularly according to the manufacturer's directions might give you the most relief from your allergies.
For many people with allergies, symptoms are the worst around 4 a.m. to 6 a.m. Taking an antihistamine at bedtime may help you or your child feel better in the morning during allergy season.
Is it okay to take ZYRTEC® over a long period of time? The ZYRTEC® package label doesn't state a limit on how long you can take ZYRTEC®. Talk to your doctor if you have any questions, especially if you're taking other medicines or being treated for any other conditions.
Overdose symptoms may include extreme drowsiness, vision problems, agitation, feeling restless and then drowsy or tired, fast heartbeats, stomach pain, nausea, vomiting, trouble walking, or trouble swallowing or speaking.
Effects persist for at least 24 hours following a single dose of 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.
Even if you're severely suffering from allergies, with incredibly watery eyes or a scratchy throat, it's not recommended to take more than the daily dosage as there can be side effects that occur.
Antihistamines like diphenhydramine (Benadryl) and cetirizine (Zyrtec) aren't known to raise blood pressure when used alone. Antihistamines are part of many combination over-the-counter (OTC) cough and cold products. They may be combined with a medication that can raise your blood pressure.
Cetirizine is the most potent antihistamine available and has been subjected to more clinical study than any other.
Oral antihistamines, such as diphenhydramine (Benadryl) and cetirizine (Zyrtec), should never be taken together, as this can lead to dangerous complications.
“Zyrtec is found to be more potent, or stronger, in laboratory studies, compared with Claritin,” says Dr. Kung. “It also reaches a higher concentration in the skin, which can be more helpful for skin-related allergies. However, Zyrtec has a greater chance of making you sleepy while taking it.”
In dermatology, cetirizine has proven to be effective in the treatment of various forms of urticaria and it reduces the pruritus of atopic eczema. For these conditions, frequently doses higher than 10 mg (up to 40 mg) are recommended to achieve the best benefit.
Yes, most people can take antihistamines every day, if they have daily symptoms of their allergies.