Currently there are "8 comments" on this Question:

  1. Lin says:

    The LD50 of Diphenhydramine in rats is 500mg/kg. For humans it is not known, so be careful! Don’t take more than needed!

  2. Carmel says:

    Are you actually trying to kill your dog or just trolling?? Anyway, call your Vet.

  3. Elvera says:

    whats the lethal dose of aspirin then 500mg/kg. does this mean that if and how lethal it is on the internet the lethal? as i did a Research dose of aspirin in more a person we

  4. Marlen says:

    I have a bible…it’s called the First Aid Companion for Cat’s and Dogs. The recommended dosage of Benadryl for dogs is 1 mg per pound. This is 3 times the dosage. How long ago did you give it? If it was just like literally minutes ago, you… More:

  5. Jaleesa says:

    There isn’t really an established lethal dose of ibuprofen. There is ,however, limits you should take and amounts that can cause harm to the body. More:

  6. Lilia says:

    Taking more than 15 grams of acetamenophin is considered lethal. That is about 30 pills. It could take less for some people. The diphenhydramine that makes for the PM, won’t kill you before the acetamenophin will. More:

  7. Estela says:

    i took 10,000mgs one night and my heart stopped

  8. Elicia says:

    While most cats can tolerate small to moderate doses of Benadryl with few serious Immediate medical attention can stop an overdose from becoming lethal. Detail:

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