What Is Clindamycin and What Does It Treat?
Clindamycin is an antibiotic used in dogs, belonging to the lincosamide class. The veterinary product is often sold under the brand name Antirobe, and clindamycin is FDA-approved for dogs.
Clindamycin works by blocking bacterial protein synthesis — it interferes with the bacterial machinery that builds proteins, so the bacteria cannot grow and multiply. It is effective against many Gram-positive bacteria and, importantly, against anaerobic bacteria — organisms that thrive in low-oxygen environments such as deep wounds, abscesses and the mouth.
Clindamycin has one characteristic that makes it especially valuable: it penetrates bone and dental tissue exceptionally well. Because of this, veterinarians often reach for clindamycin to treat:
- Dental and oral infections — a very common use
- Skin and soft-tissue infections, deep wounds and abscesses
- Bone infections (osteomyelitis) — clindamycin’s bone penetration is a real advantage here
- Certain other infections, including some caused by the parasites _Toxoplasma_ and _Neospora_
Clindamycin is a prescription medicine. Use the calculator above to understand the typical dose, but a veterinarian should confirm the diagnosis and set the prescription. For more, see PuppaDogs’ guides to clindamycin dosage for dogs and the brand-name product Antirobe.
How the Clindamycin Dosage Calculator Works
The calculator estimates a dose from your dog’s body weight and a chosen dose level. It then:
- Applies a rate of 5.5–11 mg/kg every 12 hours.
- Converts it into a number of 25, 75 or 150 mg capsules, or millilitres of oral liquid.
- Notes the longer-course needs of bone infections, and flags liver and kidney cautions.
Enter your dog’s weight, choose the reason for use, dose level and the form you have, tick any health considerations, then press Calculate Dose.
How Clindamycin Doses Are Calculated for Dogs
The Standard Dose Range
The commonly used oral clindamycin dose for dogs is approximately:
5.5–11 mg/kg of body weight, every 12 hours.
For skin, soft-tissue and dental infections, the standard rate of around 11 mg/kg every 12 hours is typical. For bone infections (osteomyelitis) and other deep, serious infections, veterinarians use the higher end of the range and a longer course. Your veterinarian sets the exact dose, frequency and length.
Forms and Strengths
- Capsules: Antirobe and generic clindamycin come as 25, 75 and 150 mg capsules.
- Oral liquid: typically 25 mg/mL — useful for small dogs and accurate dosing.
Clindamycin Dosage Chart for Dogs
This chart shows the standard dose (11 mg/kg every 12 hours). It is a reference only — your veterinarian’s prescription takes priority.
| Dog weight | Dose per administration | Frequency |
|---|---|---|
| 5 kg (11 lb) | ~55 mg | every 12 h |
| 10 kg (22 lb) | ~110 mg | every 12 h |
| 20 kg (44 lb) | ~220 mg | every 12 h |
| 30 kg (66 lb) | ~330 mg | every 12 h |
| 40 kg (88 lb) | ~440 mg | every 12 h |
How to Give Clindamycin to Your Dog
- Twice daily, every 12 hours, at consistent times.
- Follow a capsule with water or a small amount of food. Like other capsules, clindamycin can lodge in the gullet and cause irritation if given completely dry — a “water chaser” or a little wet food prevents this.
- With or without food otherwise — giving it with food can reduce mild stomach upset.
- Finish the entire course. Bone and deep infections in particular need long, uninterrupted treatment — sometimes many weeks.
- Missed dose: give it as soon as you remember, then continue on schedule; if the next dose is near, skip the missed one — never double up.
Side Effects and Safety Warnings
Clindamycin is generally well tolerated. The most common side effects are mild and digestive:
- Vomiting
- Diarrhoea or loose stool
- Reduced appetite
Giving the medication with food can help. Some dogs find clindamycin bitter-tasting and may drool or resist it.
Stop the medication and contact your veterinarian if you see severe or bloody diarrhoea, or signs of an allergic reaction such as facial swelling or hives.
When to Use Caution
- Liver disease — clindamycin is processed by the liver; the dose may need adjusting and monitoring.
- Severe kidney disease — use under veterinary guidance.
- Pregnant or nursing dogs — use only on veterinary advice.
Always tell your veterinarian about every other medication your dog takes.
Why Finishing the Course Matters
It is tempting to stop an antibiotic once a dog looks better, but doing so is a common and serious mistake — especially with clindamycin, which is often used for deep dental and bone infections that are slow to fully clear. Stopping early can leave the hardiest bacteria behind, causing a relapse that is harder to treat, and contributes to antibiotic resistance. Give every dose, for the full length your veterinarian prescribed.
Treatment Duration and Follow-Up
Course length depends heavily on the infection. A straightforward skin or dental infection may need a week or two, while osteomyelitis (bone infection) can require many weeks of continuous treatment. Your veterinarian may schedule rechecks — and, for bone infections, repeat imaging — to confirm the infection has truly resolved before stopping. Return sooner if the infection worsens or fails to improve.
Conclusion
Clindamycin (Antirobe) is an effective, well-established antibiotic for canine dental, skin and bone infections, dosed at roughly 5.5–11 mg/kg every 12 hours — with the higher end and longer courses used for deep, serious infections. The calculator above gives you that estimate and converts it into capsules or liquid. Give it twice daily, always follow a capsule with water or food to protect the oesophagus, and complete the full course, which for bone infections is often longer than expected. The diagnosis, dose and course length should always be guided by your veterinarian.
Frequently Asked Questions
How much clindamycin do I give my dog?
The commonly used oral clindamycin dose for dogs is about 5.5-11 mg/kg of body weight, every 12 hours. The standard rate of around 11 mg/kg twice daily is typical for skin and dental infections, while bone infections use the higher end and a longer course. As a guide that is roughly 110 mg per dose for a 10 kg dog.
What is clindamycin used for in dogs?
Clindamycin is a lincosamide antibiotic that penetrates bone and dental tissue exceptionally well. Veterinarians use it in dogs for dental and oral infections, skin and soft-tissue infections, deep wounds and abscesses, bone infections (osteomyelitis), and certain parasitic infections such as toxoplasmosis.
How should I give my dog clindamycin?
Give clindamycin every 12 hours, and always follow a capsule with water or a small amount of food so it does not lodge in the gullet. It can be given with food, which reduces mild stomach upset. Some dogs find it bitter, so a pill pocket or small treat helps. Complete the full course your vet prescribes.
What are the side effects of clindamycin in dogs?
Clindamycin is generally well tolerated. The most common side effects are mild digestive ones – vomiting, diarrhoea or reduced appetite – which are eased by giving it with food. Some dogs drool because clindamycin tastes bitter. Stop the medication and contact your vet for severe or bloody diarrhoea or signs of an allergic reaction.
How long does my dog need to take clindamycin?
It depends on the infection. A straightforward skin or dental infection may need a week or two, while a bone infection (osteomyelitis) can require many weeks of continuous treatment. Always finish the full course your veterinarian prescribes, as bone and deep infections in particular relapse if treatment is stopped early.
Is clindamycin the same as Antirobe?
Yes. Antirobe is a common veterinary brand name for the antibiotic clindamycin. Whether labelled as Antirobe or as generic clindamycin, it is the same active medication and is used and dosed the same way in dogs under veterinary guidance.
Related PuppaDogs Calculators
Continue building your dog’s personalised care plan with these related PuppaDogs calculators:
- Dog Pregnancy / Whelping Due-Date Calculator
- Puppy Weight Predictor (Adult Weight Calculator)
- Heatstroke Risk Calculator for Dogs
- Bloat (GDV) Risk Calculator for Dogs
- Dog Life Expectancy Calculator (Breed, Body Condition, Lifestyle)
- Spay/Neuter Timing Calculator for Dogs (Breed-Specific)
References & Further Reading
The dosing ranges and safety information on this page are drawn from the following veterinary references. Always defer to your own veterinarian and the manufacturer’s label for your specific product.
- Antirobe (clindamycin hydrochloride) – FDA-approved veterinary label, Zoetis.
- Plumb DC. Plumb’s Veterinary Drug Handbook. 10th ed. Hoboken, NJ: Wiley-Blackwell, 2023 – clindamycin monograph.
- Merck Veterinary Manual. Lincosamides; bacterial infections of bone and the oral cavity in dogs. merckvetmanual.com.
- International Society for Companion Animal Infectious Diseases (ISCAID). Antimicrobial use guidelines for dogs and cats.
- PuppaDogs. Clindamycin Dosage for Dogs: Guide and Safety Tips. puppadogs.com.
