Griseofulvin Oral Suspension 125mg/5mL (120 mL)

Antifungal Oral Suspension for Ringworm in Pets

Product Description

Griseofulvin Oral Suspension 125mg/5mL is a prescription antifungal used off-label by vets for ringworm and other dermatophyte infections of the skin, coat, and claws in dogs, cats, horses, and small mammals. It stops infected fungal cells from dividing while new healthy tissue grows in. Treatment runs for several weeks and must always be given with fatty food to work properly.

Benefits

• Ringworm Infection Treatment: Treats dermatophyte ringworm infections affecting the skin, hair coat, and claws in dogs, cats, horses, and small mammals.
• Multi-Species Application: Suitable for dogs, cats, horses, guinea pigs, rabbits, rodents, and ferrets for eligible dermatophyte fungal infections.
• Spread Prevention: Stops fungal cells from reproducing at the infection site, helping prevent ringworm from spreading to other pets or people.
• Liquid Suspension Convenience: The suspension form makes dosing easier and more accurate across different species and size ranges than tablets.
• Equine Rain Rot Treatment: Used by vets in horses for ringworm and rain rot as part of a supervised dermatophytosis treatment plan.

Ingredients

Active Ingredients

Griseofulvin 125mg per 5mL

How to Use

Griseofulvin Oral Suspension 125mg/5mL is a prescription-only medication. A valid veterinarian's prescription is required to purchase this product.

Please follow your veterinarian's specific instructions for the dosage and administration of this medication for your pet.

Disclaimer: Dosage and administration of this medication must be determined by a licensed veterinarian. Always consult your veterinarian before administering or adjusting any prescription medication for your pet.

Additional Information

Precautions

• Never Use in Pregnant: This drug causes severe birth defects and must never be given to any pregnant animal, regardless of species.
• FIV Testing Required: All cats must be tested for FIV before starting, as FIV-positive cats face a serious bone marrow suppression risk.
• Not for Young Kittens: Do not use in kittens under 12 weeks old, as the risk of bone marrow suppression and toxicity is greatly increased.
• Caution in Specific Breeds: Siamese, Himalayan, Persian, and Abyssinian cats are more prone to side effects and need close monitoring throughout.
• Must Give With Fat: Always give with a fatty meal; absorption drops significantly on an empty stomach, and therapeutic levels may not be reached.
• Phenobarbital Reduces Absorption: Concurrent use of phenobarbital reduces griseofulvin blood levels and may require dose adjustments under veterinary guidance.
• Human Reproductive Hazard: Wear gloves and avoid inhaling the suspension during administration, as this drug causes birth defects and has carcinogenic potential.

Possible Side Effects

• Digestive Upset: Vomiting, loose stools, and reduced appetite are the most commonly reported reactions in dogs and cats during treatment.
• Bone Marrow Suppression: Neutropenia is a serious risk in cats, especially FIV-positive ones; blood counts should be checked every two weeks.
• Liver Toxicity: Liver damage is rare but serious; contact the vet right away if the pet shows jaundice or sudden loss of appetite.
• Neurological Signs: Rare cases of weakness, loss of balance, or poor coordination have been reported and need urgent veterinary care.
• Sun Sensitivity: Thin-coated or light-skinned animals should stay out of direct sun during treatment to avoid photosensitivity reactions.

Storage Information

• Room Temperature Storage: Keep this bottle somewhere cool and out of direct sunlight, with the lid always firmly shut between uses.
• Shake Well Before Use: Shake the suspension well before each dose to make sure the active ingredient is evenly spread through the liquid.
• Keep Out of Reach: Store in a locked spot away from children and untreated animals, given this medication's known reproductive hazard status.

Note: For generic medications, the product image shown may not reflect the actual item received. Generic medications can vary in size, color, and shape between orders depending on the manufacturer. Additionally, your medication may arrive packaged in a HardyPaw Pharmacy vial.

Shipping & Return

We offer ground, express, and priority delivery; see our shipping policy for details.

For return instructions or product concerns, please refer to our detailed refund policy.

Prescription items are NON-RETURNABLE and NON-REFUNDABLE.

Frequently Asked Questions

Q1: What fungal infections does griseofulvin treat in dogs, cats, and horses?

Ans: Griseofulvin treats dermatophyte infections of the skin, coat, and claws, mainly ringworm in dogs, cats, and small mammals. In horses, it covers ringworm and rain rot. It does not work against bacteria, parasites, mites, or other fungal types, so a confirmed diagnosis before starting is important.

Q2: Why must griseofulvin always be given with fatty food?

Ans: Griseofulvin is fat-soluble and needs dietary fat to be absorbed properly from the gut. Giving it without food drops blood levels significantly and may let the infection hang on or come back. Cheese, butter, cream, or corn oil alongside each dose keeps absorption where it needs to be.

Q3: Why do cats require FIV testing before starting griseofulvin?

Ans: FIV-positive cats already have a weakened immune system with lower white blood cell counts, and griseofulvin can push that further into dangerous territory by suppressing bone marrow. Testing beforehand lets the vet catch at-risk cats early and switch to a safer option like itraconazole or terbinafine instead.

Q4: Why is griseofulvin considered a reproductive hazard for people handling it?

Ans: Griseofulvin is teratogenic and has carcinogenic potential based on animal studies. Pregnant people must always wear gloves, wash their hands after handling, and avoid inhaling the liquid. Anyone with significant skin or oral exposure should contact the National Capital Poison Center at 800.222.1222 right away.

Q5: How long does griseofulvin treatment typically last in pets?

Ans: Most fungal skin infections need several weeks to months of daily treatment. Griseofulvin only shields new tissue as it grows and cannot clear cells already infected, so the course must run until all infected skin and hair have been fully replaced by healthy new growth.