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    GlossaryCetirizine (Zyrtec)

    antihistamine used to relieve allergy symptoms

    Cetirizine, commonly known by the brand name Zyrtec, is an antihistamine used to relieve allergy symptoms such as runny nose, sneezing, and itchy eyes. It works by blocking histamine, a substance in the body that causes allergic reactions.

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      popular antihistamine showing promise for hair loss as an anti-inflammatory and prostaglandin inhibitor

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      community Zyrtec (Cetirizine) antihistamine for hair growth compared to Minoxidil NIH study

      in Minoxidil  35 upvotes 1 year ago
      The conversation discusses the potential of topical cetirizine (Zyrtec) for hair growth in comparison to minoxidil, noting cetirizine's ability to reduce prostaglandin D2, which inhibits hair growth. Users share mixed experiences with cetirizine for allergies and scalp health, and there's a mention of the risk of dementia with long-term antihistamine use.

      community Cetirizine (Zyrtec), to help with inflammation.

      in Product  3 upvotes 3 months ago
      The user experiences an itchy scalp and finds relief using shampoo and Zyrtec, which helps with inflammation. They are unsure if the issue is related to histamines or seborrheic dermatitis.

      community For those dealing with an unbearable scalp itch/pressure/inflammation.

      in Treatment  8 upvotes 4 years ago
      The conversation discusses using cetirizine (Zyrtec) topically to relieve scalp itch associated with hair loss and suggests it may also benefit androgenetic alopecia (AGA). One person found relief from scalp itch after three months on finasteride, noting the itch was linked to areas where hair was lost.

      community Anyone else experiencing scalp inflammation? Get in here!

       6 upvotes 5 years ago
      A user found that taking Zyrtec (Cetirizine) and Advil helped reduce their scalp inflammation and pain, potentially creating a better environment for hair growth. They have not used any other medication for hair loss or scalp issues.