All Alavert products relieve sneezing, runny nose, itchy, watery eyes and itching of the nose and throat. Alavert Allergy & Sinus also relieves sinus pressure and nasal congestion, helping to restore freer breathing. Back to FAQ main Alavert is a non-drowsy allergy medicine, when taken as directed. Taking more than recommended may cause drowsiness. First-generation antihistamines, like Benadryl, can cause sleepiness. Alavert is an advancement in non-prescription allergy medicine. Back to FAQ main Before December 2002, you needed to obtain a prescription from your physician for a non-drowsy allergy medicine. Now, with Alavert you can obtain prescription strength, non-drowsy, long-lasting (12 or 24 hour) allergy relief without a prescription. Also, Alavert is available in a convenient, quick dissolving tablet that melts in your mouth without water, so you can take it right when you need it, wherever you are. Back to FAQ main Alavert does not contain any of these ingredients. Back to FAQ main Quick Dissolving Alavert and Easy to Swallow Alavert tablets provide 24 hours of allergy relief. Alavert Allergy & Sinus provides 12 hours of relief. Back to FAQ main Loratadine is a non-sedating antihistamine and is the active ingredient in Alavert. It was introduced as a prescription product in 1992, and was approved for over the counter (non-prescription) use by the FDA in 2002. Back to FAQ main Please feel free to contact us with your questions and comments in any of the following ways: Call a customer service representative toll-free at: 800-ALAVERT (800-252-8378), Monday-Friday; 9:00AM-5:00PM EST. E-mail us with your comments and we will get back to you within 2 business days. Back to FAQ main