Doctor insights on:
Can I Take More Than One Antihistamine
No, but why take it?: You won't die if you take 5 or 6 Loratadine tablets (50-60 mg) but this antihistamine that doesn't cause sedation at the usual dose of 10 mg may make you drowsy at this higher dose. Such a high dose of Loratadine may be helpful for difficult to control hives but offers little advantage over the usual dose for treating allergic rhinitis or allergic conjunctivitis. ...Read more
I would not : Invokana comes in 2 dosage strengths, 100 mg and 300 mg. It is designed to be given once a day at either strength. The maximum dosage is 300 mg daily. Added benefit beyond this dosage has not been demonstrated. ...Read more
Can I take more than one Allegra (fexofenadine) 180 24 hour tablet per day? For how long can I take this?
Yes: You can for a day or two, depending on why you need it for, if longer you need a doctor to look at you, you might need additional/different medicine, an allergist can help, check aaaai.org or acaai.org for an allergist in your area, good luck, ...Read more
It depends: This question is not so straightforward because it depends on many things such as why you are taking it, how much you are taking, other medications you are taking and what medical conditions you might have. ...Read more
Recommended dose: The recommended dose is once a day. It is best to see a doctor if usual recommended doses are not helping. Often something different is required. Increased doses increase the risk of side effects. ...Read more
I know it is not recommended to take more than one antihistamine pill per 24 hours, but some only last ~8 hours. Which ones lasts for 24 hrs?
Xyzal (levocetirizine) and Clarinex: From experience some of the newer antihistamines such as Xyzal (levocetirizine) and Clarinex seem to be effective for longer time periods. Most antihistamines however peak in effectiveness in the first few hours and start to wear off after 12-15 hours. ...Read more
Depends : If it is the Allegra (fexofenadine) 12 hr formula, you take it twice daily and the 24 hr formula once a day, just as it says on the package. If you feel you need more rx, then you should see your primary doctor, an allergist, or an otolaryngologist for more direction on how to treat your allergies. There are many more medication options plus allergy testing and immunotherapy can be offered. ...Read moreSee 1 more doctor answer
Not recommended: One tablet a day is the recommended and approved dose. If you have certain specific concerns see an allergist. In patients with certain diagnoses using a higher dose is supported by the medical literature. ...Read more
How many mg of zyrtec (cetirizine) can I take at one time or in a day? Can I combine another med for more help? Trying to help heat urticaria until I see a doctor.
Can I take fexofenadine 180. More than one a day? If I required? Does it helps me to protect from pollen?
Yes: We have used up to 4x/day dose for chronic hives and thus it is safe even at that dose frequency. Don't expect to get relief in the nasal congestion however because you will to have a decongestant pill to achieve that. In general a nasal steroid will be more effective. If medications fail, then you will need to consult an allergist. ...Read moreSee 1 more doctor answer
Sleep hygiene: Do a search on the topic of sleep hygiene and look for tips that are pertinent to you. You may have an anxiety disorder that requires treatment by a physician. If your caffeine intake is high, it may take several weeks of lower caffeine intake before you can assess the effects of cutting back. Alcohol also can adversely affect sleep quality. ...Read more
See below: It all depends on the dosage listed on the bottle. There are some vitamins that you take more than once per day. But you should not take extra vitamins. There are some vitamins that can cause problems if toxic levels are reached. In addition, your body will not make use of most of the other extra vitamins because it can't store them anywhere so you're wasting your money ; creating expensive urine. ...Read more
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