Updated On September 23rd, 2025
Pet's info: Dog | Shetland Sheepdog | Male | 2 months and 8 days old
How much benadryl for 5 pound puppy
1 Answer
Published on March 6th, 2016
The calculation for Benadryl is quite simple, it just 1mg per lb , so for a 5 lb dog it would be around 5mg. Since Benadryl comes in 25mg usually this is close to 1/4 tablet and there is a wide safety margin for Benadryl so 1 or 2 mg above or below is well tolerated. Expect some drowsiness just like in humans.
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