Forum Topic: Doxycycline Dosage for My Pup - Need Advice!


NickName42Hey everyone,

I've been recommended to give my dog 100 mg of doxycycline twice a day. He’s a medium-sized breed, about 35 lbs (16 kg). I'm concerned because he seems small for the dosage suggested by his vet. Is this normal? Should I be worried? Thanks in advance!


PetLover89Hi NickName42,

Firstly, it's great that you're reaching out and doing your research! For a 35 lb dog, 100 mg of doxycycline twice daily is within the standard dosage range. Typically, the dose for dogs ranges from about 5 to 10 mg per kg (about 2.3 to 4.6 mg/lb) every 12 hours. However, it's always best to consult with your vet directly if you have concerns.


VetFanaticHi NickName42,

PetLover89 is correct. Doxycycline dosing depends on the condition being treated and can vary based on weight. For a 35 lb dog, here’s how it breaks down:

  • Your dog weighs about 16 kg.
  • The typical dosage range for doxycycline in dogs is approximately 5 to 10 mg/kg every 12 hours.

So, at the higher end of that range (about 8.75 mg/kg), you’d be looking at around 140 mg twice daily. Your vet has likely given a slightly lower dose, which seems reasonable for your pup's size and weight.

NickName42Thanks VetFanatic and PetLover89! That does help put my mind at ease. I will definitely reach out to his vet if I have any more concerns. Appreciate the quick responses!


DoggieDoc101You're welcome, NickName42.

I’d also add that while doxycycline is generally well-tolerated in dogs, it can cause some side effects such as vomiting or diarrhea. If you notice any adverse reactions, it’s important to contact your vet right away. Also, remember to give the medication with food to minimize stomach upset.


NickName42Thanks DoggieDoc101! I’ll make sure to watch out for any signs of discomfort and will give him his doxycycline with a small meal.


PetCareGuruGreat advice from everyone here!

Also, just a friendly reminder that while forums can provide valuable information, always follow your vet’s guidance. If you’re still unsure or concerned about the dosage, setting up another consultation might be beneficial to ensure everything is on track for your furry friend's health.


NickName42Absolutely, PetCareGuru! I’ll keep an eye on him and reach out if needed. Thanks so much for all the support!


VetFanaticYou're welcome, NickName42. We’re here to help whenever you need us. Wishing your pup a speedy recovery!


Forum Topic Closed: Doxycycline Dosage for My Pup - Need Advice!

Note from moderator: Thank you all for the helpful discussion. Remember, this forum is for informational purposes only. For personalized medical advice, always consult with your veterinarian.


Feel free to continue the conversation if you have more questions or concerns about your dog's health and treatment plan!