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    GlossaryDiphenhydramine (Benadryl)

    antihistamine used to treat allergies and induce sleep

    Diphenhydramine, commonly known as Benadryl, is an antihistamine used to relieve symptoms of allergy, hay fever, and the common cold, such as rash, itching, watery eyes, and sneezing. It works by blocking the action of histamine, a substance in the body that causes allergic symptoms. Additionally, it has sedative properties and is sometimes used as a sleep aid.

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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 Bryan Johnson used a customized formula by Roots byGA to restore his hair

      in Treatment  22 upvotes 2 weeks ago
      Bryan Johnson used a customized hair restoration formula from Roots byGA, which includes Minoxidil, Cetirizine HCl, Latanoprost, Dutasteride, Melatonin, Caffeine, Tretinoin, Vitamin D3, and Vitamin E. Many users are skeptical of the effectiveness and uniqueness of the treatment, suggesting that standard treatments like Minoxidil and Dutasteride are more reliable.

      community This guy is 113 and has more hair than most people on here.

      in Satire  978 upvotes 3 years ago
      A 113 year old man who has more hair than most people, and the conversation is discussing potential genetic factors that may be responsible for this. Possible treatments such as dermarolling and minoxidil, finasteride, and RU58841 are mentioned.