Get

In Your Inbox

Catster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

9 Most Common Cat Medications for Feline Use (Vet Answer)

young woman giving cat a tablet pill

As veterinary medicine expands, so too does the number of treatment options available for use in feline patients. The selection is impressive—arthritis injections, radiation therapy, CBD oil, acupuncture, and oral (not injectable!) insulin.

However, despite these advances, there are nine medications that we believe are still the cornerstone of feline medicine. So, what are they, and how do they work?

The 9 Most Common Cat Medications

1. (Non-steroidal anti-inflammatories) NSAIDs

nsaids tablets
Image By: Sonis Photography, Shutterstock

NSAID is an abbreviation for “non-steroidal anti-inflammatory”. These are the most common types of painkillers used for cats. They are the same class of medication as ibuprofen, commonly used in people. Many different types of NSAIDs (and many brands) are available. They all work via the same mechanism.

The active ingredient, when absorbed, blocks some of the molecules that drive the inflammation pathway in the body. Inflammation is one of the main causes of acute pain, so reducing inflammation will reduce pain. NSAIDs are used post-operatively for most surgeries, as well as for wounds, arthritis, and injuries.


2. Antibiotics

metronidazole antibiotic vial
Image By: Sonis Photography, Shutterstock

Antibiotics are used to treat infections and diseases caused by bacteria. There are a huge number of different antibiotics available in cats; some are licensed for use in cats, and others are used off-label.

Most are tablets, but liquid suspension options are available. Long-acting injections are also available but should be used by vets judiciously. Antibiotics are indicated for some wounds and catfight injuries, as well as urinary and respiratory infections.


3. Gabapentin

Gabapentin tablets
Image By: Sonis Photography, Shutterstock

Gabapentin was originally designed for people to treat partial seizures and nerve pain. Somewhere along the line, vets realized that it was highly effective in cats. Gabapentin can be used as a pain-relief medication; it is best for chronic pain and nerve pain, as opposed to acute injuries, where NSAIDs are likely a better option.

Gabapentin also makes cats slightly drowsy. For this reason, it is often used to reduce stress in highly anxious cats or to facilitate blood collection in cats that are fractious at the vet clinic.


4. Antiviral Medications

woman giving cat a pill
Image Credit: New Africa, Shutterstock

You may have heard of “cat flu”. This is a very common viral disease of domestic cats, particularly in shelter settings and multi-cat households. The disease is called cat flu because the signs are similar to the flu that affects people—snotty nose, congestion, sneezing, and weepy eyes.

However, whereas human flu is caused by the influenza virus, cat flu is actually caused by feline herpesvirus. Some cats may be treated with an antiviral medication called famciclovir.


5. Anti-parasitics

Woman injecting cat product to prevent from flea treament
Image Credit: goodluz, Shutterstock

From a young age, most cats should be receiving some form of anti-parasite medication. These medications are available over the counter and protect cats against both internal and external parasites: worms, heartworm, fleas, ticks, and mites. In some parts of the world, ticks and heartworm can be fatal.

Most feline anti-parasite medications are available as a spot-on solution that is applied to the skin on the back (to avoid the hassle of giving a tablet). A large number of brands are on the market, and we recommend discussing what’s best for your cat with a veterinarian.

If you need to speak with a vet but can't get to one, head over to PangoVet. It's an online service where you can talk to a vet online and get the advice you need for your pet — all at an affordable price!

PangoVet_Mention-in-Content for PangoVet2 save money


6. Laxatives

Laxative Tablets Spilled from Bottle
Image Credit: Michelle Lee Photography, Shutterstock

Laxatives are used in cats to reduce the ill effects of grooming and hairballs, as well as to treat constipation. Most of these laxatives work by softening the stool, aiding the passage of hair. Some work by preventing the accumulation of hair into clumps.

The use of laxatives should always be discussed with a veterinarian, as many cats experiencing problems with hairballs have an underlying problem that allows the hairballs to form in the first place.


7. Anti-Nausea Medications

hand giving pill to a cat
Image Credit: Creative Cat Studio, Shutterstock

Nausea is common in cats, even though it can be hard for the layperson to detect. The causes of nausea range from diet indiscretion or gut upset to cancer and pain. Both oral (tablet) and injectable forms of anti-nausea medication exist.

Some stop the body from vomiting, while others address the nausea itself; anyone who has experienced nausea will appreciate how awful this feeling is!


8. Frusemide

owner giving tablet medicine to cat
Image Credit: Alexsander Ovsyannikov, Shutterstock

Frusemide is the mainstay of treatment for cats that are in congestive heart failure. This is the term used when heart disease prevents the adequate pumping of the heart to the body. As a result, blood (or more specifically, fluid) starts to seep out into the lungs and other parts of the body.

Frusemide is used to get rid of this fluid and reduce the strain on the heart. It is a diuretic medication, meaning the fluid is lost in urine. Other heart medications are normally required in conjunction with frusemide.


9. Anti-thyroid Medications

a bottle of Methimazole
Image Credit: luchschenF, Shutterstock

Did you know that roughly 10% of cats over the age of 10 years are affected by hyperthyroidism? This is a disease in which the thyroid gland, which sits in the throat, grows too large and produces excessive amounts of thyroid hormone. The signs of hyperthyroidism are classic—weight loss despite a ravenous appetite, behavioral changes, and vocalization.

Unfortunately, hyperthyroidism can affect other organs, including the eyes, heart, and kidneys. While some cats are treated with radioactive iodine therapy or even surgical removal of the thyroid gland, many owners choose to medicate their cats daily. Methimazole and carbimazole and the common products; both are highly safe and effective.

divider 3 paws

Conclusion

Thankfully, you don’t need to feel daunted or confused by veterinary medications—that’s what the vet is for! However, we believe it is important for cat owners to understand what medications their cat has been prescribed.

If you think your cat needs one of the above medications, or if you want to know more, don’t hesitate to reach out to your local vet clinic.

See Also: 


Featured Image Credit: New Africa, Shutterstock

How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Catster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

2 Responses

  1. my cat seems to be off her wet food.. she will eat kibble but will not eat canned food…what could the cause be? she sleeps the normal amount and has energy in abundance.. should i be concerned about some internal problems?

    1. Dear Robert,
      Thank you for your question and sorry for a bit of a late reply. Since your cat isn't lethargic and seems to be behaving normally, it doesn’t seem that there’s any urgent cause for concern at this time. However, any changes in pets should be closely monitored, as cats are masters at hiding signs of illness. We recommend that you continue to monitor this behavior and try a different wet food option. Try to experiment with different flavors, brands or mix some wet food with dry food and try to figure out what your cat likes the most.
      If you would still have concerns for your cat, we would like to suggest booking an appointment with one of our veterinarian experts at www.PangoVet.com. They will be happy to consult with you and give some advice.

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.

Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

How to Stop a Cat From Spraying: 8 Vet-Approved Tips

It can be frustrating to have a cat that sprays, whether it is your cat that is spraying around the house or yard...

10 Best Cat Shampoos of 2025 – Reviews & Top Picks

Cats are notorious for wanting things on their own terms. They are solitary creatures that feel they can do everything for themselves, including...

All Aboard: Meet the Huddersfield Train Station Cats

Cats have long been employed as pest control in barns, churches, and warehouses. As we recently covered, you can even adopt specific working...

Do Cats Need Professional Groomers? Vet-Reviewed Cleaning Facts & Tips

Grooming is a must for all cats, long-haired and short-haired alike, but do cats need to be professionally groomed? Not necessarily. You can...

More related

Why Do Cats Stick Their Tongue Out? 10 Vet-Verified Reasons

You might better know a cat with its tongue out as a “blep”, and it’s just one of the reasons that we love...

How to Safely Restrain a Cat: Dr. Karyn Shares Her Tips (with Video)

Hi, I’m Dr. Karyn! Read my introduction to learn more about me and meet my five hilarious cats: Clutch, Cyril, Alex, Zelda, and...

Is Cat Cremation the Right Option for Your Pet? Vet-Reviewed Guide

Losing a beloved cat is one of the most painful moments in life. Whether your loved one is nearing the end of their...

When Can I Let My Kitten Roam the House? Vet-Approved Info & 4 Safety Tips

Kittens are curious creatures that like to explore and get into mischief. Letting a kitten roam free in the house can be a...

Keep reading

How to Make a Skittish Cat Friendly: 10 Great Vet-Verified Ways

Many cats have a natural skeptic streak when it comes to new experiences, but some cats really take the cake when it comes to embodying the word “skittish.” These are the cats that may bolt when they see you coming,...

scared kitten hiding

How Do Cats Feel Pain? Vet-Approved Facts & Signs

Cats have a similar nervous system as humans and other mammals.1 They can feel pain whether due to injuries, illnesses, or any other internal ailment. However, cats often try to not show signs of their pain. Instead, they tend to...

cat lying on bed

How Long Do Cats Live? Feline Lifespan Facts Explained (Vet Approved)

We’ve all heard that cats have nine lives. But how much of that is actually true? Do cats seem to escape brushes with death regularly? If the cat lives an expected average of years, how long is that usually? According...

Silver Tabby Norwegian Forest Cat

Can Cats Eat Cream Cheese? Vet-Reviewed Nutrition Facts & FAQ

Most cats love dairy foods. The stereotypical cat loves milk, though it may upset most actual cats’ stomachs. But what about cream cheese? While cream cheese isn’t toxic to cats, it isn’t exactly the best option for them either. Cream...

Can Cats Eat Cream Cheese

Weruva Cat Food Review 2025: Recalls, Pros & Cons

Review Summary Weruva Inc. was founded by Stacie and David Forman in 2007 and is named after the couple’s three cats, Webster, Rudi, and Vanessa. The company was started after the couple grew tired of trying to find high-quality food...

Weruva Cat Food Review

Can Cats Eat Feta Cheese? Vet-Approved Risks & Alternatives

It’s a common scenario: you’re enjoying a delicious snack or meal, and your feline friend gazes up at you with those pleading eyes (or reaches up with a desperate paw!). If your treat of choice is feta cheese, you might...

Can Cats Eat Feta Cheese

8 Best Wet Cat Foods in Australia in 2025 – Reviews & Top Picks

There are many benefits to introducing wet cat food into your cat’s diet. It contains more moisture to help your cat stay hydrated, and it’s easier to eat and digest for older cats and cats with digestive issues. However, even...

orange cat eating wet food

Why Does My Cat Keep Sneezing? 7 Vet-Verified Causes

Sneezing in cats has several causes. Cats sometimes sneeze to get rid of tickles in their noses, but the reflex can also be a sign of a severe illness. It’s not a huge deal if a cat sneezes once or...

Cat sneezes making funny expression