Janumet

Medically Reviewed by Dr. Harshi Dhingra, M.D.

Last Reviewed: Jul 22, 2022

Common Questions


Common Questions about Janumet


Are metformin and Janumet the same?

Janumet contains metformin, but it also has another medicine in it called sitagliptin. In other words, Janumet is a combination product that contains two medications - sitagliptin and metformin. Sitagliptin is a DPP-4 inhibitor that increases the amount of insulin the body makes. Metformin is a biguanide that reduces the amount of glucose released by the liver into the blood and also improves response to insulin.



What is the best time to take Janumet?

If you are on regular Janumet, you should take it twice daily with meals. If you are taking Janumet XR, you should take it once daily, preferably with your evening meal.



What happens if you stop taking Janumet?

Your blood sugar levels can rise if you stop taking Janumet. Janumet helps control your type 2 diabetes mellitus but does not cure the condition. You should not stop taking Janumet without talking to your doctor first. If you are bothered by side effects or the cost of Janumet, talk to your doctor about alternatives. 



How quickly does Janumet start working?

You might notice an improvement in blood glucose levels within 4-5 days of initiating Janumet XR or Janumet. However, it can take several weeks for this medication to improve HbA1c levels in patients with type 2 diabetes mellitus.



Does Janumet cause weight gain?

Weight gain is not a likely side effect of Janumet. You should know that Janumet works as an adjunct to diet and exercise to control blood sugar levels in people with type 2 diabetes mellitus. Therefore, you should try to eat a healthy diet and exercise regularly. This will help maintain a healthy body weight and control blood sugar levels.



What is the price of Janumet without insurance?

Without insurance, Janumet can be as high as $674.92, but with a free BuzzRx prescription discount coupon, you could pay as low as $520.21 for the most common version of this medication. Use the BuzzRx drug price look-up tool to find the lowest discounted price, and be sure to enter the correct dosage, form, and quantity for the most accurate pricing. It never hurts to ask your pharmacist to try BuzzRx when filling or refilling any of your prescriptions—whether you have insurance or not.



What is the price of Janumet with insurance?

Ask your pharmacist or insurance provider for your copay price on Janumet—copay amounts vary depending on the type of insurance plan you have and if there is a deductible to reach before prescription drug coverage begins.

You could save up to 80% on your prescription medication with a free BuzzRx discount coupon for Janumet. When using the BuzzRx lookup tool to find the price of your medication, be sure to enter the correct dosage, form, and quantity to receive the most accurate discounted pricing. It never hurts to ask your pharmacist to try BuzzRx when filling or refilling any of your prescriptions—whether you have insurance or not.