Bexacat (Bexagliflozin) for Cats: The Oral Diabetes Pill

This information is for educational purposes only. Never give your pet any medication without your veterinarian's guidance. Dosing, frequency, and safety depend on your pet's specific health profile.

Bexacat is the brand name for bexagliflozin, an oral SGLT2 inhibitor approved by the U.S. FDA for certain cats with diabetes mellitus. It was the first oral diabetes medication approved for cats in the United States. Instead of acting like insulin, it helps lower blood sugar by reducing how much glucose the kidneys reabsorb, so more sugar leaves the body in the urine.

This medication is meant for otherwise healthy cats with diabetes that have not previously been treated with insulin and weigh at least 6.6 pounds (3 kg). That patient selection step matters. Bexacat is not appropriate for every diabetic cat, and your vet usually needs lab work and urine testing before deciding whether it is a safe option.

For some pet parents, an oral tablet can feel more manageable than twice-daily injections. Even so, Bexacat is not a lower-monitoring option. Cats taking it still need close follow-up because serious complications, including diabetic ketoacidosis (DKA) or euglycemic DKA where blood sugar may not look dramatically high, can occur.

Bexacat is used to improve glycemic control in select cats with diabetes mellitus. In FDA-reviewed field studies, more than 80% of treated cats showed improvement in glycemic control and diabetes-related clinical signs such as increased thirst, increased urination, and increased appetite.

It is not used as a general diabetes pill for every cat. Your vet may avoid it if your cat has ever received insulin, appears dehydrated, lethargic, or poorly eating at diagnosis, or has evidence of pancreatitis, liver disease, kidney dysfunction, elevated ketones, or other conditions that raise the risk of complications.

In practice, Bexacat is one option within a broader diabetes plan. That plan may also include diet changes, weight monitoring, ketone checks, repeat bloodwork, urinalysis, and sometimes a switch to insulin if your cat does not respond well or develops safety concerns.

The labeled dose for cats is one 15 mg tablet by mouth once daily for cats weighing 6.6 lb (3 kg) or more. It is given at about the same time each day and can be given with or without food. Unlike many medications, the labeled dose is not adjusted by body weight once a cat meets the minimum weight requirement.

Do not change the dose or stop the medication on your own. If your cat misses a dose, pet medication references advise giving it when remembered unless it is close to the next scheduled dose. In that case, skip the missed dose and return to the regular schedule. Do not double up.

Before starting Bexacat, your vet typically checks bloodwork and urine, including screening for ketones and urinary tract infection risk. Ongoing monitoring may include weight, physical exams, blood glucose trends, fructosamine, ketones, feline pancreas-specific lipase, liver values, and urinalysis. If appetite drops, surgery is planned, or your cat is not eating normally, your vet may recommend temporary discontinuation because reduced calorie intake can increase the risk of DKA or hepatic lipidosis.

Common side effects reported in studies included vomiting, diarrhea or loose stool, decreased appetite, lethargy, dehydration, increased urine concentration, elevated kidney-related lab values, and increased feline pancreas-specific lipase. Because the drug causes glucose to spill into the urine, some cats also develop urinary tract infections or changes in urination.

The most important safety concern is diabetic ketoacidosis (DKA) or euglycemic DKA, which can be life-threatening. See your vet immediately if your cat develops poor appetite, vomiting, marked tiredness, weakness, dehydration, weight loss, or sudden decline while taking Bexacat. A normal-looking blood glucose number does not rule out a dangerous problem in cats on this medication.

Less common but important concerns include hepatic lipidosis, pancreatitis concerns, persistent high calcium, calcium-containing bladder stones, and possible long-term urothelial cancer risk noted in labeling. If your cat seems "off," is hiding, stops eating, or is drinking and urinating differently than usual, contact your vet promptly rather than waiting to see if it passes.

Published veterinary references do not list a long, definitive interaction table for Bexacat, but several medication groups are flagged for cautious use. These include corticosteroids, diuretics, ACE inhibitors, other antihypertensive drugs, beta-blockers, and estrogens. These drugs may affect hydration status, blood pressure, glucose control, or how easy it is to recognize a developing problem.

Your vet should also know about any supplements, probiotics, over-the-counter products, appetite stimulants, or herbal products your cat receives. Even if a product is not a direct chemical interaction, it can still matter if it changes appetite, fluid balance, kidney values, or liver values.

One especially important safety point is that Bexacat should not be started in cats currently on insulin or previously treated with insulin. Transitioning an insulin-dependent cat to Bexacat has been associated with a higher risk of severe adverse reactions, including DKA and death. If your cat's diabetes control changes over time, your vet may recommend a different treatment path rather than combining or swapping medications casually.