🐶 Benadryl Dosage Calculator for Dogs 💊
Find the safe Benadryl dosage for your dog.
The Benadryl dosage calculator for dogs is the easiest way to determine a safe amount of Benadryl (Diphenhydramine) for your furry friend. 🐕. Whether it’s for allergies, motion sickness, or anxiety, this tool has you covered.
Can you give a dog Benadryl?
A. The answer is both yes and no you should always consult your veterinarian first!
What is the Safe Dosage of Benadryl for Dogs?
- A small dog weighing around 10 pounds (4.5 kg) should receive no more than 18 mg.
- A medium-sized dog weighing 25 pounds (11.3 kg) could be given up to 45 mg.
- For larger dogs around 50 pounds (22.7 kg), the maximum amount is 90 mg.
How to calculated Benadryl Dosage for Dogs
- Set weight unit as per your needs Kilograms (kgs) and pounds (lbs)
- Now Add the dog’s weight and click calculate dosage
- Dosage will be shown in both mg and ml
- To recheck the dosage click Reset Button
Benadryl Dosage Chart for Dogs
| Dog weight in pounds (lbs) | Low End of Dose Range (mg) | High End of Dose Range (mg) |
|---|---|---|
| <10 | 10 | 20 |
| 10 – 20 | 10 – 20 | 20 – 35 |
| 20 – 30 | 20 – 30 | 35 – 55 |
| 30 – 40 | 30 – 35 | 55 – 75 |
| 40 – 50 | 35 – 45 | 75 – 90 |
| 50 – 60 | 45 – 55 | 90 – 110 |
| 60 – 70 | 55 – 65 | 110 – 130 |
| 70 – 80 | 65 – 75 | 130 – 145 |
Potential Side Effects and Important Information
Benadryl is usually safe for most dogs, but it can cause some side effects, including:
- Mild drowsiness (less than in humans)
- Sedation
- Digestive issues like vomiting or diarrhea (can be minimized by giving with food)
- Restlessness or agitation, especially at higher doses
- Seizures
- Dry mouth
- Small (constricted) pupils
- Difficulty urinating (urinary retention)
FAQs
Can I use Benadryl for my dog’s allergies?
Yes, Benadryl is safe for dogs and can help relieve allergy symptoms. It’s most effective when given early—before or at the first sign of symptoms—rather than during a full flare-up.
How much Benadryl do I give to a 50 lb dog?
For a 50 lb dog, you can give 50 mg of Benadryl. This equals:
1. Two 25 mg tablets
2. Four 12.5 mg chewable tablets
3. 20 ml of liquid Benadryl (12.5 mg per 5 ml)
How much Benadryl can I give to my 20 lb dog?
For a 20 lb dog, you can give 8 ml of liquid Benadryl or one 12.5 mg chewable tablet.