how much antihistamine can i take daily?
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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 .
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Diphenhydramine (Benadryl): 1mg per pound (one 25mg tablet for a 25lb dog) twice daily. Cetirizine (Zyrtec) ¼ - ½ mg per pound (one 10mg tab per 30-40 lbs) twice daily.
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Do not take more than 2,400 mg (12 capsules or tablets) of ibuprofen daily. Take ibuprofen with food or after meals if it seems to bother your stomach. Prescription doses of ibuprofen normally range between 400 mg to 800 mg, up every six to eight hours.
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Adults—40 milligrams (mg) per day (given as 20 mg two times per day) to 60 mg per day (given either once a day or as 30 mg two times per day). Your doctor may increase your dose as needed. However, the dose is usually not more than 120 mg per day.
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Most allergy medicines should not be combined with one another, according to Dr. Susan Besser, a primary care provider at Mercy Medical Center in Baltimore, Maryland. “You should not take multiple oral antihistamines together, such as Benadryl, Claritin, Zyrtec, Allegra or Xyzal. Pick one and take it daily.
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Benadryl Dosage If you are using Benadryl liquid, do not use a kitchen teaspoon to measure a dose. Use the measuring cup that comes with the medication. Typical doses for Benadryl are: For adults and children older than 12, take 1 to 2 tablets or capsules every 4 to 6 hours as needed.
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For oral dosage form (extended-release tablets): Adults—At first, 180 to 240 milligrams (mg) once a day, either in the morning or at bedtime. Your doctor may adjust your dose if needed. Children—Use and dose must be determined by your doctor.
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A: I have reviewed your question regarding Zyrtec (cetirizine). The normal adult dose is 5mg to 10mg taken at the same time each day. I cannot recommend taking more than the recommended dosage. Studies show that the 1/2 life of Zyrtec (half of the medication still in the body and not eliminated) is around 8 hours.
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“You should not take multiple oral antihistamines together, such as Benadryl, Claritin, Zyrtec, Allegra or Xyzal. Pick one and take it daily. These medicines work better to control symptoms if you take them daily,” she explains. Dr.
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Maximum dosage Oral Benadryl products shouldn't be taken more than 6 times each day. For adults and children over 12 years of age, the maximum is 300 mg each day. For children ages 6 to 12 years, the maximum is 150 mg each day.
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For oral dosage form (extended-release tablets): Adults—At first, 180 to 240 milligrams (mg) once a day, either in the morning or at bedtime. Your doctor may adjust your dose if needed.
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For adults, acetaminophen can be taken 4 to 6 times throughout the day as long as the total amount taken is not more than 3,000 mg for the whole day. Under the supervision of a prescriber, up to 4,000 mg a day of acetaminophen can be taken.
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A common regimen for treating adult allergic reaction is 25-50 mg every 4-6 hours not to exceed 300 mg daily.
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Use Adult BENADRYL® products. 1 to 2 tablets every 4 to 6 hours. Do not exceed 8 tablets in 24 hours.
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['For adults and children older than 12, take 1 to 2 tablets or capsules every 4 to 6 hours as needed.', 'For children ages 6 to 11, take 1 tablet or capsule every 4 to 6 hours as needed, or 1 to 2 teaspoons of Benadryl liquid every 4 to 6 hours as needed.']
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Depending on your symptoms, you can take antihistamines: Every day, to help keep daily symptoms under control. Only when you have symptoms. Before being exposed to things that often cause your allergy symptoms, such as a pet or certain plants.
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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.