Methimazole 25 mg/mL Compounded Suspension Unflavour - 15 mL

Methimazole 25 mg/mL Compounded Suspension (Unflavoured) is a custom-formulated oral liquid designed to match your veterinarian’s prescription for your cat. Methimazole is commonly prescribed by veterinarians to help manage feline hyperthyroidism by reducing excessive thyroid hormone production. This unflavoured 25 mg/mL suspension supports precise, measurable dosing and is prepared to order in a convenient 15 mL bottle. The liquid format can be easier for some cats than tablets, helping make daily administration more manageable as part of a veterinarian-directed treatment plan.

$49.84

Methimazole 25 mg/mL Compounded Suspension Unflavour

By: PMD Labs

Methimazole 25 mg/mL Compounded Suspension Unflavour

💊 Prescription
This product requires a valid prescription. After you place your order, we'll follow up by email to collect your veterinarian or prescription details. Note: If we don't receive a response within 1 week, we'll cancel the order and issue a full refund — just to keep things safe and compliant.
Subtotal: $49.84
💊 Prescription
This product requires a valid prescription. After you place your order, we'll follow up by email to collect your veterinarian or prescription details. Note: If we don't receive a response within 1 week, we'll cancel the order and issue a full refund — just to keep things safe and compliant.
✓ Free shipping on orders over $100
🚚 Usually delivered in 1-5 days

Methimazole 25 mg/mL Compounded Suspension (Unflavoured) is a custom-formulated oral liquid designed to match your veterinarian’s prescription for your cat. Methimazole is commonly prescribed by veterinarians to help manage feline hyperthyroidism by reducing excessive thyroid hormone production. This unflavoured 25 mg/mL suspension supports precise, measurable dosing and is prepared to order in a convenient 15 mL bottle. The liquid format can be easier for some cats than tablets, helping make daily administration more manageable as part of a veterinarian-directed treatment plan.

About This Item

  • A compounded, unflavoured oral suspension containing methimazole—an antithyroid (thioamide) medication—commonly prescribed to help manage hyperthyroidism in cats; supplied at 25 mg/mL in a 15 mL bottle for accurate dosing as directed by your veterinarian.
  • Methimazole

What is methimazole used for in cats?

Methimazole is commonly prescribed to help manage hyperthyroidism in cats by reducing the production of excessive thyroid hormones.

How do I give this 25 mg/mL methimazole suspension?

Measure the prescribed amount with a calibrated oral syringe and give by mouth as directed by your veterinarian. Shake the bottle well before each dose.

How long will my cat need methimazole?

Many cats require long-term or lifelong therapy to control hyperthyroidism. Your veterinarian will advise on duration and monitor progress with periodic lab tests.

What side effects should I watch for?

Possible side effects can include decreased appetite, vomiting, diarrhea, lethargy, or itching of the face/skin. Rarely, changes in liver values or blood cell counts may occur. Contact your veterinarian if you notice any concerning signs.

Can I mix this unflavoured suspension with food?

Ask your veterinarian first. If approved, you may give it directly by mouth or mix the measured dose with a small amount of a favorite food to ensure the full dose is consumed.

Will my cat need monitoring while on methimazole?

Yes. Regular checkups and blood tests are typically recommended to assess thyroid hormone levels and kidney/liver function and to adjust the dose if needed.

Pet Health Benefits

Every product we carry at PetMeds Direct is selected with care to support your pet's health from nose to tail.

Pain Relief

Vet-approved medications to reduce inflammation and ease joint or post-surgery pain

Heart Health

Supplements and meds that help manage blood pressure and support cardiovascular function

Disease Prevention

Vaccines and immune-boosting supplements help reduce the risk of serious illness

Skin & Coat Care

Dermatology products and omega-rich formulas promote healthy skin and a shiny coat

Happy Pet Parents

Not sure how to get started with PetMeds Direct? We make caring for your pet easier than ever — whether it's managing prescriptions, stocking up on supplements, or getting expert advice. Explore below for helpful ways pet parents use PetMeds Direct to stay on top of their pets' health. At PetMeds Direct, we're proud to serve pet lovers all across Canada.

About PetMeds Direct

PetMeds Direct was founded with one simple mission: to make pet healthcare easier, faster, and more compassionate for Canadian pet parents. What started as a small idea — helping busy families manage their pets’ prescriptions — has grown into a trusted nationwide pharmacy serving dogs, cats, and everything in between. We believe pets are family, and every tail wag and purr deserves top-tier care. That’s why we work closely with vets, offer fast shipping, and make prescriptions and wellness products more accessible than ever. At PetMeds Direct, we’re not just delivering meds — we’re delivering peace of mind.

Healthy Pets, Happy Homes

Caring for your pet’s health has never been easier. With just a few clicks, PetMeds Direct delivers trusted medications and wellness products right to your door — fast, affordable, and vet-approved. Say goodbye to last-minute pharmacy runs and hello to peace of mind.

Trusted & Certified

PetMeds Direct is a licensed and certified pharmacy, committed to providing safe, authentic medications for your pets.

Accreditation No. 311012