Worst Pills
cetirizine (ZYRTEC)

Drug and Dietary Supplement Profiles

A comprehensive review of the safety and effectiveness of this drug. If the drug is not a Do Not Use product, information on adverse effects, drug interactions and how to use the medication are included.
Search results below include drug profiles where your selected drug is a primary subject of discussion

Disease and Drug Family Information

Search results below include Disease and Drug Family Information where your selected drug is a primary subject of discussion
  • Allergy and Hayfever [hide all summaries]
    If you suffer from an itchy and runny nose, watery eyes, sneezing, and a tickle in the back of your throat, then you probably have an allergy. An allergy means a hypersensitivity to a particular substance called an allergen. Hypersensitivity means that the body’s immune system, which defends against infection, disease, and foreign bodies, reacts inappropriately to the allergen. Examples of common allergens are pollen, mold, ragweed, dust, feathers, cat hair, makeup, walnuts, aspirin, shellfish, poison ivy, and chocolate.
  • Cough and Cold [hide all summaries]
    Many prescription or over-the-counter drug combinations of two or more ingredients should not be used because they are irrational combinations of single ingredients, some of which are safe and effective and sensible to use alone if treating the symptom for which they are intended. The combinations, however, present extra risks for extra ingredients that will usually not add any benefit (possibly a risk) to the first ingredient and will invariably cost much more than the single ingredient alone.

Worst Pills, Best Pills Newsletter Articles

Search results below include Worst Pills, Best Pills Newsletter Articles where your selected drug is a primary subject of discussion
  • Preventing Heat-Induced Death and Illness [hide all summaries]
    (June 2018)
    This article lists practical steps to take to avoid death, hospitalization or other medical problems caused by heat stress. It also identifies over 100 drugs that can impair your response to heat and thereby increase your risk of heat-induced illness and death.
  • Drugs That Cause Sun-Related Skin Reactions [hide all summaries]
    (July 2016)
    Summer is a terrific time for healthy outdoor activities, such as walking, hiking, biking and swim¬ming. But for an unlucky few, certain medications can lead to adverse skin reactions following exposure to the sun. Find out whether you are at risk and how to protect yourself.
  • Treatment for Nasal Allergies: An Updated Review [hide all summaries]
    (April 2016)
    With spring time pollen counts soaring, many patients with seasonal nasal allergies will be looking for relief from allergy medications. Learn the best available treatments to stay safe and relatively symptom-free during allergy season and throughout the year.
  • New Study Reveals Many Patients at Risk for Dangerous Alcohol-Drug Interactions [hide all summaries]
    (July 2015)
    Recent research revealed that many patients consume alcohol while using drugs that may can cause dangerous side effects when combined with alcohol. Read this article to learn about the many ways alcohol can adversely interact with prescription and over-the-counter medications.
  • Update on Grapefruit Juice-Drug Interactions [hide all summaries]
    (July 2012)
    This article updates and expands our earlier list of drugs that can have harmful interactions with grapefruit juice. The list now includes 82 different drugs.
  • Preventing Heat-Induced Death and Illness [hide all summaries]
    (June 2012)
    This article lists practical steps to take to avoid death, hospitalization or other medical problems caused by heat stress. It also contains a list of 123 drugs that can impair your response to heat.
  • Smoke & Mirror Marketing (& Other Clever Big Pharma Tricks) [hide all summaries]
    (May 2010)
    The article reviews 12 prescription drugs, many of which are top-sellers, all of which are greatly overpriced in comparison to older "versions" of the same drugs. The patents on the old drugs expired so the "innovative" companies patented these new products, gaining a patent on them, and, for all practical purposes, using them as a license to print money. There is no evidence that any of the new ones are better than the now less-expensive, old versions.
  • Tizanidine: Watch Out for Drugs Interacting With This Muscle Relaxant [hide all summaries]
    (October 2008)
    Tizanidine (ZANAFLEX) is a muscle relaxant for which more than 3.8 million prescriptions were filled in the U.S. last year. The article lists more than 64 drugs with which it can have dangerous interactions resulting in excess sedation, difficulty breathing or dangerously low blood pressure that can result in falling.
  • Grapefruit Juice and Drug Interactions [hide all summaries]
    (June 2002)
    Grapefruit juice can interact with a number of therapeutically important drugs that could lead to the possibility of toxicity. These drugs are listed in the article.

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