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    GlossaryAntihistamines

    medications that block histamine to relieve allergy symptoms

    Antihistamines, also known as histamine blockers or H1 receptor antagonists, are medications that help alleviate allergy symptoms by blocking the action of histamine, a substance in the body that causes allergic reactions. They are commonly used to treat conditions such as hay fever, hives, and other allergic reactions, and can also be effective in managing symptoms of the common cold and motion sickness.

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      learn Cetirizine

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

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      community antihistamine for scalp inflammation??

      in Chat  6 upvotes 3 months ago
      Cetirizine 10mg daily reduced hair shedding by 50% and lessened scalp itchiness. The user is considering long-term use for scalp inflammation and hair loss.

      community Antihistamines stop my hair loss

      in Treatment  23 upvotes 2 years ago
      A user found that antihistamines stop their hair loss and related symptoms, but they experience side effects like sedation and chest pain. They are seeking alternative solutions or topical antihistamines to avoid systemic side effects.

      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 1% cetirizine (available in allergy medicines) for androgenetic alopecia

       53 upvotes 4 years ago
      The conversation discusses using 1% cetirizine, an antihistamine, as a potential treatment for androgenetic alopecia (hair loss). One user plans to try cetirizine instead of finasteride, while others are curious or skeptical about its effectiveness, discussing the role of inflammation in hair loss.

      community No Luck Getting Rid Of The Itchy Scalp. What Now?

      in Chat  10 upvotes 2 years ago
      A user experienced a burning, itchy scalp and hair thinning despite trying finasteride, steroid cream, antihistamines, various shampoos, and supplements. They seek advice on relieving the itch, hoping it will improve hair health.