Ejnes, MD, MACP, a board-certified internal medicine specialist and chair of the American Board of Internal Medicine. If you have hay fever or eye allergies from pollen exposure, you might be taking daily over-the-counter antihistamines for symptom relief.īut is it safe to be taking allergy medications every day? We asked allergy experts for their advice.įor people with year-round symptoms, taking allergy medications every day may be necessary and it's safe, according to Yul D. Warming temperatures have increased pollen concentration and prolonged allergy seasons. Many times, adding on a nasal steroid, like Flonase Nasacort or Nasonex, to an antihistamine, can be more effective than taking either alone.Newer antihistamines like Allegra and Claritin are generally safe for daily use.īut allergy medications with decongestants, such as Claritin-D or Benadryl-D, could make your allergies worse with long-term use.Īn allergist or immunologist can offer alternative treatments such as immunotherapy or allergen desensitization. Most individuals respond very well to 10mg per day, and if you find yourself needing additional relief, you should talk to your doctor about your options. The issue is that this is above the maximum recommended dose approved by the FDA, and even though there are some studies showing doses above 10mg are, for the most part, safe, there is a lack of long-term safety data. Most of the evidence points to 20mg of Claritin (two tablets per day of the adult 10mg dose) being relatively safe and effective. The side effects of the drug appear to be dose-dependent, meaning they occur more frequently, and are more severe, as you increase your dose. Overall, loratadine is generally regarded as a safe antihistamine, with toxic doses being well above the recommended daily doses. If you are still struggling with symptoms, it may be a better idea to try something else, or in addition to Claritin, instead of taking over the dosage recommended. These side effects include:įor most people, 10mg per day of Claritin is plenty to be effective. Many have reported that 40mg per day seems to be the dose where side effects start becoming particularly noticeable. It is important to note that not every study reports loratadine being well-tolerated at doses over what is recommended. Duration of suppression was dose related, ranging from 12 hours with the lowest dose (10 mg) to 48 hours with the higher doses (40 and 80 mg). The onset of action occurred within the first hour. It reported the following results: The mean suppression over 48 hours was 16% in placebo-treated subjects and 35%, 45%, 51%, and 67% in the 10, 20, 40, and 80 mg loratadine-treated subjects, respectively. This study particularly noted there were no significant side effects experienced in those taking loratadine at that high dose (40mg).Īnother study tested doses up to 80mg per day and noted increasing effectiveness as the dose increased, with minimal side effects. One such study reported the following: loratadine 40 mg once daily was effective and safe in the relief of symptoms of allergic rhinitis. So, in regard to this, taking over 10mg per day, there have been quite a few studies testing the safety and effectiveness of doses up to 40mg per day. However, most people that ask about taking two Claritin a day are referring to taking two 10mg doses (which, again, is over the maximum recommended dose). This is within the recommended dosing guidance. To answer the question of whether or not you can take two Claritin per day, we have to clarify what is actually being asked.įor adults, you can take Claritin 5mg twice a day, since the 5mg dose is intended to work for 12 hours at a time. The maximum daily dose for children 2 years to 6 years old is 5 mg once daily. This can either be taken as a single dose (10mg every 24 hours) or twice a day (5mg every 12 hours). There are also several children's products, which include a 5mg/5mL syrup.Īs stated in the section above, the maximum daily dose for Claritin ( loratadine) approved by the FDA is 10mg for adults. There are several different dosage forms and strengths of Claritin available. Nevertheless, you likely won't see recommendations or guidance for adults to take over 10mg per day, since, as mentioned, that is the FDA-approved maximum daily dose. However, a number of studies do show that doses above 10mg can be effective, with minimal risk of side effects. I'll start off by saying that 10mg of Claritin ( loratadine) per day is the maximum dose approved by the FDA (Food and Drug Administration). I am assuming based on your submission you are looking for information on taking 2 tablets of adult Claritin per day, for a total of 20mg.
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