Buy Istamet Online

Istamet is a fixed-dose tablet that combines two diabetes medicines in one pill: sitagliptin, a DPP-4 inhibitor (a medicine that helps the body release more insulin after meals), and metformin hydrochloride, which lowers the amount of sugar the liver makes. It is prescribed alongside diet and exercise to improve blood sugar control in adults with type 2 diabetes. You can order Istamet with a valid prescription from your own prescriber, view current pricing, and choose the tablet strength shown during ordering so it matches your clinician’s written directions.

Sitagliptin with metformin is a long-established combination, and the medicine is supplied through licensed pharmacy channels. The sections below cover what the tablet treats, how it is usually taken, the safety points worth knowing before your first dose, and how this brand name relates to the version sold in the United States.

Price and tablet strength selection

Current pricing is shown with the product, and the amount you pay depends on the strength and quantity you select. Istamet is a combination tablet, so each strength pairs a fixed amount of sitagliptin with a fixed amount of metformin hydrochloride. Prescriptions for these combinations are written as two numbers, such as the sitagliptin component followed by the metformin component.

Pick the strength that matches your prescription exactly. If your prescriber recently changed your metformin amount, confirm which number on the label changed before you place an order. Do not try to reach a prescribed strength by splitting or doubling a different one, because many metformin tablets are film-coated and are not meant to be divided.

Quick tip: Keep a photo of your current prescription label so the strength and daily number of tablets are easy to check.

What Istamet is used for

Istamet is used in adults with type 2 diabetes to lower blood glucose when diet and exercise alone are not enough. It is often prescribed when metformin on its own no longer keeps A1C at target, or when a clinician wants to start two medicines with different actions at once. It can be used alongside other diabetes treatments, including a sulfonylurea or insulin, when a prescriber decides that combination is appropriate.

There are clear limits on its use. Per US prescribing information for sitagliptin and metformin tablets, the combination is not for type 1 diabetes and is not a treatment for diabetic ketoacidosis, a serious condition in which the blood becomes acidic and that needs urgent hospital care. It also does not replace insulin for people who need insulin. Istamet is not a weight-loss medicine, although some people lose a small amount of weight on metformin because of reduced appetite.

How the two active ingredients work together

The two ingredients act on different parts of blood sugar control, which is why they are combined in one tablet.

• Sitagliptin blocks the DPP-4 enzyme. This raises levels of incretin hormones, so the pancreas releases more insulin after a meal and the liver releases less glucose. It works mainly when blood sugar is rising, so by itself it rarely causes low blood sugar.
• Metformin hydrochloride reduces glucose production in the liver, slows glucose absorption from the gut, and helps the body respond better to its own insulin.

Because the actions differ, the combination usually lowers A1C more than either ingredient alone. Blood sugar readings often start to shift within the first week or two, while the full effect on A1C is generally judged after about three months, since A1C reflects an average over that period.

How Istamet is usually taken

Sitagliptin and metformin tablets are normally taken with meals to reduce stomach upset, and the daily amount is split through the day because of the metformin component. Prescribers usually increase the metformin part gradually to limit nausea and diarrhea. Follow the schedule written on your prescription label rather than adjusting it yourself.

Swallow tablets whole with water. If you miss a dose, take it with your next meal unless it is nearly time for the following dose; do not take two doses at once. Tell your clinician if you plan a procedure, a day of fasting, or a period of illness with vomiting or diarrhea, because metformin is sometimes paused temporarily in those situations.

Brand, generic, and how this version relates to the US product

Istamet is the brand name used for sitagliptin with metformin hydrochloride in several markets outside the United States. In the US, the same two active ingredients are sold under the brand name Janumet, along with generic sitagliptin and metformin tablets from various manufacturers. Istamet is not the FDA-approved US product, so it should not be described as FDA-approved; it is an approved and regulated medicine in the market where it is licensed, supplied through licensed pharmacies.

Brand names, tablet appearance, and manufacturer differ by country even when the active ingredients and strengths match. If you are moving from a US-labeled product, show your pharmacist or prescriber the new carton so the ingredient names and strengths on the label can be matched to your prescription. Border Free Health is an online prescription referral service that works with certified, accredited pharmacy partners, and prescription medications require a valid prescription from the patient’s own prescriber.

Side effects, warnings, interactions, and monitoring

Most people tolerate sitagliptin with metformin, and the common effects are digestive and usually improve as the body adjusts.

• Diarrhea, nausea, gas, stomach pain, and loss of appetite
• Headache and upper respiratory symptoms such as a stuffy nose or sore throat
• A metallic taste, especially early in treatment
• Low blood sugar, mainly when the tablet is combined with a sulfonylurea or insulin

Metformin-containing medicines carry a boxed warning in US prescribing information about lactic acidosis, a rare but serious buildup of lactic acid in the blood. Risk rises with reduced kidney function, dehydration, heavy alcohol use, liver disease, and severe infection. Get urgent care for unusual muscle pain, deep or fast breathing, severe weakness, stomach pain with vomiting, or feeling unusually cold.

Other warnings worth knowing before you order:

• Pancreatitis. DPP-4 inhibitors have been linked with acute pancreatitis. Stop the medicine and seek care for severe, persistent abdominal pain that may spread to the back, with or without vomiting.
• Kidney function. The combination is not used in severe kidney impairment. Kidney function is usually checked before starting and at least yearly after that.
• Imaging with contrast dye. Metformin is often stopped around procedures that use iodinated contrast, then restarted after kidney function is confirmed.
• Joint pain and skin reactions. Severe joint pain has been reported with DPP-4 inhibitors, as has bullous pemphigoid, a blistering skin condition that needs medical review.
• Vitamin B12. Long-term metformin can lower B12 levels, so levels may be checked periodically, particularly with anemia or numbness and tingling.

Interactions to raise with your prescriber or pharmacist include alcohol, diuretics and other medicines that affect kidney function, carbonic anhydrase inhibitors such as topiramate or acetazolamide, cimetidine and other drugs that compete for kidney clearance, and insulin or sulfonylureas, which may need a lower amount when sitagliptin is added. Share a full list of prescriptions, over-the-counter products, and supplements.

Routine monitoring usually includes home glucose readings, A1C every three to six months, kidney function, and periodic B12 testing. Contact your clinician about repeated low blood sugar, persistent vomiting or diarrhea, swelling or rapid weight gain, or symptoms that do not settle after the first few weeks.

Storage and handling

Store the tablets at normal room temperature, away from heat, light, and damp. Bathroom cabinets are a poor choice because of humidity. Keep tablets in the original container with the label intact so the strength and expiry date stay readable, and keep them out of reach of children.

Check the expiry date when a new supply arrives and compare the strength printed on the carton with your prescription. If packaging is damaged, or if the tablets look different from your usual supply, ask a pharmacist before taking them.

What you need to order

A valid prescription from your own prescriber is required for Istamet. The prescription should state the active ingredients, the sitagliptin and metformin strengths, the quantity, and the directions for use. We may review order details and help confirm prescription details so the strength and quantity you receive match what your prescriber wrote.

Before ordering a first supply, it helps to have your most recent A1C and kidney function results on hand, plus a current medicine list. If your prescriber is still adjusting the metformin amount, wait for the final written directions so you order the right strength rather than changing tablets mid-course.

Authoritative sources

• MedlinePlus consumer information on metformin
• MedlinePlus consumer information on sitagliptin

This content is for general informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified clinician or pharmacist about your situation, and seek urgent care or call your local emergency number for severe or worsening symptoms.