Doubling Allegra Dosage May Cause Irregular Heart Rhythms. Thats because as we age, our kidneys arent able to flush many drugs  including this one  out of the body as efficiently as they used to, with the result that excess drugs can build up in your body to toxic, even life threatening, levels. Your creatinine clearance Cr. CL  a number that reflects the rate at which your kidneys can flush out drugs  is about 6. This is normal for your age, height 5 9 and weight 1. Windows 7 Home Premium 32 Bits Pt-Br. But patients with a renal clearance of less than 8. Allegra, which means that the 1. CustomerExperienceMap-640x414.png' alt='Zyrtec Allergy Rewards Program' title='Zyrtec Allergy Rewards Program' />By signing up, youll not only save on ZYRTEC today, youll also get tips on managing your seasonal allergies from our newsletters, alerts on future savings. Target Cartwheel, a whole new spin on coupons. Find share the best deals in all your favorite categories grocery, baby, apparel, health beauty more. Meet health professionals delivering real solutions to suit your individual needs. Find more of what works and benefit from great value on every shelf. Wellness. My wellness with Plenti Dashboard wellness with Plenti Programs. Diabetes wellness Allergy Rewards for Relief. Craigslist Auto Flagging Program. Continuing at this dose or going even higher could cause irregular heart rhythms, which can lead to death. Since youve had the uticaria for such a long time, Id suggest that you consult an allergistimmunologist, if you havent recently. The doctor may be able to uncover an autoimmune problem, which could perhaps be directly treated. Unfortunately, though, the specific cause of urticaria can be identified in only one of five cases. A?$img_size_380x380$' alt='Zyrtec Allergy Rewards Program' title='Zyrtec Allergy Rewards Program' />Walgreens coupons are paperless online Clip coupons on Walgreens. Balance Rewards membership. Stepping up the dose on Allegra could be dangerous, especially as you age. Excess drugs can build up in your body to toxic, even lifethreatening levels. People who take the same antihistamine over a long period of time may build up a tolerance to the drug. Accordingly, you may get better relief of your symptoms by taking a smaller dose of Allegra, say 7. Claritin or cetirizine Zyrtec, at a dose of 1. Ask the Pharmacist is written by Armon B. Neel Jr., Pharm. D, CGP, in collaboration with journalist Bill Hogan. They are coauthors of Are Your Prescriptions Killing You, published this month by Atria Books. Also of interest Are your prescription drugs making you fatPaperless Coupons Walgreens. Limit 1. 00 clipped coupons. Please redeem or remove some coupons to make space for more savings. Manage coupons. Manage coupons.