Xyzal and Clarinex Generics Now Available

Xyzal and Clarinex are both anti-histamines used to treat allergies. Both medications are now available as generics by prescription since December 2010. The active ingredient for both xyzal and clarinex are the active stereoisomer of the over-the-counter zyrtec and claritin respectively. In other words, zyrtec and claritin available over-the-counter contain the same active ingredient found in xyzal and clarinex, but in an "un-purified" state. Still confused? Read this article w…

2/04/2011 0

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Zyrtec (OTC) and Xyzal (Rx) Contain the SAME Active Ingredient? Prilosec (OTC) and Nexium (Rx) Too!

If zyrtec and xyzal ( allergy medications) both contain the same active ingredient ( cetirizine ), why are they "different" and one is sold over-the-counter (zyrtec) and the other available only by prescription (xyzal)? This is also true for reflux medication prilosec (OTC) and nexium (prescription) which contain the same active ingredient omeprazole . It's because of mirror images of the same active ingredient molecule... with one being biologically active and the other inac…

11/14/2010 17

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Allergy Medications Explained

A new webpage has been posted going over the different types of allergy medications in the market today. Given that there is plenty of information on the internet on the science behind how these medications work, the webpage does not go into the pharmacodynamics and pharmacokinetics, but rather uses terms hopefully a layperson can understand. Furthermore, small useful tidbits of info are given including differences between allegra and allegra-D not only in terms of medical benefit but also …

1/16/2008 0

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