Calculate safe Benadryl (Diphenhydramine) dosage for your cat's allergies or travel.
Cat Details
Liquid Benadryl usually comes in 12.5mg per 5ml.
Safe Dosage
10.0mg
Recommended Dose
Standard dose is 1mg per pound of body weight.
Tablet Amount0.80Tablets
Liquid (12.5mg/5ml)4.0mL
Safe dosage is approximately 0.75 tablets or 0.75 of a pill.Give every 8-12 hours as recommended by your vet.
Dosage Chart (mg)
About this calculator
Diphenhydramine for Felines
Benadryl is an antihistamine that can help cats with allergic reactions, insect stings, and motion sickness. The standard veterinary dose is 1mg per lb of body weight. While common, always consult your vet before administering new medications.
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Pro Tips
Foaming: Cats often foam at the mouth after Benadryl because it tastes extremely bitter.
Check Ingredients: Never use Benadryl that contains Xylitol, Alcohol, or decongestants.
Drowsiness: Most cats get sleepy, but some may become hyperactive (paradoxical reaction).
Liquid Dosing: Liquid Children's Benadryl is often easier to dose for cats than tablets.
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Fun Facts
"A cat's liver processes medications much slower than humans or dogs."
"Benadryl works by blocking H1 receptors which cause allergy symptoms."
"Tylenol (Acetaminophen) is highly toxic to cats; never substitute Benadryl with it."
"Weight management is key: Always use an accurate current weight for dosage."
