Header Image for Januvia vs Janumet

Januvia vs Janumet

Listen to the article instead of reading through it.


Januvia Information

Janumet Information


Dosage Information

Side Effects

Warnings and Precautions


Market Information


For patients with type 2 diabetes, certain medications can effectively manage their blood sugar levels. Januvia and Janumet are two such drugs that are commonly prescribed for this condition. They each work in different ways but both have the effect of lowering glucose levels in patients with type 2 diabetes. Januvia is a DPP-4 inhibitor which works by increasing the levels of incretin hormones like GLP-1 that help to regulate insulin production after meals, reducing blood sugar spikes. On the other hand, Janumet is a combination medication containing both sitagliptin (the active ingredient in Januvia) and metformin – an older drug used widely in managing diabetes that decreases liver's production of glucose while improving insulin sensitivity.

Januvia vs Janumet Side By Side

Brand NameJanuviaJanumet
ContraindicationsShould not be taken with drugs that cause harmful interactions like steroids or water pills (diuretics). Not recommended for patients with severe kidney disease without appropriate dose adjustment.Should not be used in people with severe kidney problems or those suffering from ketoacidosis. Not to be taken with drugs that cause harmful interactions like steroids or water pills (diuretics).
CostAround $460 for 30 tablets of 100 mgAround $530 for 60 tablets of 50/500 mg
Generic NameSitagliptinSitagliptin and Metformin
Most Serious Side EffectPancreatitisLactic acidosis
Severe Drug InteractionsInsulin and sulfonylurea drugs can lead to dangerously low blood sugar levels.Insulin and sulfonylurea drugs can lead to dangerously low blood sugar levels.
Typical Dose25-100 mg/day depending on kidney function50/500 mg once daily, can be increased to 50/1000 mg twice daily

What is Januvia?

Sitagliptin (the generic name for Januvia) is an oral diabetes medicine that helps control blood sugar levels by regulating the insulin your body produces after eating. It was first approved by the FDA in 2006 and is used to improve glycemic control in people with type 2 diabetes mellitus. On the other hand, Janumet, also aimed at controlling blood sugar levels, combines two active ingredients - sitagliptin and metformin hydrochloride. Metformin works by decreasing glucose production in the liver and reducing absorption of glucose by the intestines. Both medications are taken orally but have different influences on how your body manages high blood sugar levels. While Januvia mainly increases insulin production post-meal times, Janumet not only boosts this effect but also decreases glucose produced naturally within your system due to metformin content – thus having a more comprehensive approach towards managing diabetes.

What conditions is Januvia approved to treat?

Januvia and Janumet are both approved for the treatment of type 2 diabetes:

  • Januvia is often utilized when diet and exercise alone does not control high blood sugar.
  • Janumet, on the other hand, is used when control of blood sugar levels cannot be achieved with either metformin or sitagliptin alone. It combines two effective medications (sitagliptin and metformin) in one tablet to help manage diabetes more efficiently.

How does Januvia help with these illnesses?

Januvia, also known as sitagliptin, is a medication designed to help manage type 2 diabetes by increasing the levels of incretins available in the body. Incretins are hormones that help regulate insulin - a hormone necessary for controlling blood sugar levels. They do this by stimulating the pancreas to release more insulin and signaling the liver to stop producing glucose when it's not needed. Therefore, by increasing incretin levels, Januvia can limit high blood sugar spikes after meals.

On the other hand, Janumet combines two effective medicines (sitagliptin and metformin) for diabetes management in one tablet. Metformin works differently from sitagliptin: it decreases glucose production by the liver and helps your body respond better to insulin produced naturally. When used together as part of Janumet therapy, they provide better control of blood sugar than either medicine alone.

What is Janumet?

Janumet is a brand name for the combination of sitagliptin and metformin, two medications used to treat type 2 diabetes. It works by increasing levels of insulin produced by your body and decreasing the amount of glucose made by your liver. Furthermore, it also decreases the absorption rate of sugar in your intestines. Janumet was first approved by the FDA in 2007.

As Janumet is a combination drug, its action extends beyond that of sitagliptin (which makes up Januvia). This means its side-effect profile can be different from that of Januvia alone - particularly as metformin can cause stomach upset or diarrhea especially when treatment first begins. These effects on both insulin production and glucose reduction make it beneficial for the treatment of type 2 diabetes, especially in patients who do not respond well to other antidiabetic drugs such as Januvia alone.

What conditions is Janumet approved to treat?

Janumet is a prescription medication used to control high blood sugar in adults with type 2 diabetes. It's approved by the FDA for:

  • Improving glycemic control when diet and exercise do not provide adequate control
  • Use in combination with insulin or as an adjunct to diet and exercise

It combines two medicines, sitagliptin (the active ingredient in Januvia) and metformin, which work together to lower your blood glucose levels.

How does Janumet help with these illnesses?

Janumet is a medication that, much like Januvia, helps to manage blood sugar levels in individuals with type 2 diabetes. It functions by increasing the levels of insulin produced after a meal and decreasing the amount of glucose produced by the liver. Its dual-action approach comes from the combination of two drugs: sitagliptin (the active ingredient in Januvia) and metformin. Metformin works on improving your body's overall response to its naturally occurring insulin while also decreasing glucose production, which makes it an effective tool for managing this condition. Since it has an additional mechanism compared to Januvia alone, it might be prescribed when blood sugar is not adequately controlled by monotherapy or as part of a multiple drug regimen for better control of blood glucose levels.

How effective are both Januvia and Janumet?

Both sitagliptin (Januvia) and Janumet, which is a combination of sitagliptin and metformin, have been shown to be effective in managing blood glucose levels for patients with type 2 diabetes. These medications were approved by the FDA within two years of each other. Since they contain different active ingredients, their prescription may depend on individual patient needs.

Sitagliptin works by inhibiting an enzyme called dipeptidyl peptidase-4 (DPP-4), thereby increasing the levels of incretin hormones in the body. This leads to increased insulin production in response to meals and decreased amount of glucose produced by the liver.

A number of studies have demonstrated that both sitagliptin alone or combined with metformin can effectively manage blood glucose levels without leading to weight gain or significantly increased risk of hypoglycemia. For instance, a study published in 2010 compared sitagliptin monotherapy against its combination with metformin over a period of 24 weeks and found that both treatment regimens had similar efficacy but those taking the combination experienced fewer gastrointestinal side effects.

On safety profiles: Sitagliptina has been shown to be well-tolerated among patients; however some might experience common side effects such as stuffy nose, sore throat or headache. In rare cases it could also cause pancreatitis - inflammation of pancreas.

Janumet combines two antihyperglycemic agents with complementary mechanisms action - it lowers sugar production by liver due its Metformine content alongwith improving body's response towards insuline courtesy Sitaglitpin presence.The most common side effect observed during clinical trials was diarrhea.Nausea,vomitting,gas & upset stomach are few other known side-effects.It is recommended that Janument should not be used on people who already suffer from kidney problems.

In summary ,both medications seem equally effective at managing blood sugar level.However considering cost,effectiveness & possible adverse effects your healthcare provider would take a decision best suited for you.

abstract image of a researcher studying a bottle of drug.

Find Top Clinical Trials

Choose from over 30,000 active clinical trials.

At what dose is Januvia typically prescribed?

Oral dosages of Januvia typically range from 25-100 mg/day, depending on kidney function. Studies have shown that a once-daily dosage is effective for managing blood sugar levels in people with type 2 diabetes. In contrast, Janumet, which combines the active ingredient in Januvia with metformin, has different recommended dosages: either 50 mg sitagliptin/500 mg metformin twice daily or 50 mg sitagliptin/1000 mg metformin twice daily. The specific dose depends on the patient's current regimen and glycemic control level. Dosage can be adjusted based on effectiveness and tolerance after initial treatment period; however, maximum dosage should not exceed sitagliptin 100mg/metformin 2000mg per day.

At what dose is Janumet typically prescribed?

Janumet treatment typically begins with a dosage of 50/500 mg (sitagliptin/metformin) once daily. If necessary, the dose can be increased to 50/1000 mg twice daily, taken morning and evening. The maximum recommended dose is 100/2000 mg per day divided into two doses of 50/1000 mg each and spaced approximately 12 hours apart. This may be considered if there's no substantial response to initial treatments after a few weeks. Always remember that all antidiabetic medication therapies should be individualized based on patient needs while considering the potential risks and benefits.

What are the most common side effects for Januvia?

Common side effects that you may experience when taking Januvia or Janumet include:

  • Upper respiratory infection
  • Stuffy or runny nose and sore throat
  • Headache
  • Nausea, vomiting, diarrhea
  • Upset stomach and indigestion (dyspepsia)
  • Swelling of the hands or legs
  • Low blood sugar (hypoglycemia) in people who take Janumet along with certain other medicine for diabetes. Symptoms can include shaking, sweating, fast heartbeat, hunger, blurred vision, dizziness or tingling in your hands and feet.

Keep in mind this is not a complete list of side effects and others may occur. Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

abstract image of a patient experiencing side effect

Are there any potential serious side effects for Januvia?

The use of Januvia and Janumet, while generally safe, can in rare instances lead to potentially serious side effects:

  • Allergic reactions: These include hives, difficulty breathing or swallowing, swelling of the face or throat. If these occur after starting either medication, seek medical attention immediately.
  • Pancreatic inflammation: This is signified by severe pain in your stomach area that may move to your back with or without vomiting.
  • Heart failure: Symptoms may be shortness of breath that becomes worse when you lie down; swelling of feet and legs due to fluid build-up; unusual tiredness.
  • Low blood sugar (hypoglycemia): Watch for symptoms such as headache, drowsiness, weakness, confusion amongst others especially if combined with insulin or sulfonylurea.
  • Serious skin conditions including blistering and peeling have been reported.
  • Kidney problems manifesting as swollen ankles/feet/hands; feeling tired/short of breath; changes in urination.

If you experience any major side effects from either Januvia or Janumet it's crucial to get immediate medical assistance.

What are the most common side effects for Janumet?

Janumet, a combination of sitagliptin and metformin, may result in certain side effects:

  • Nausea, vomiting, upset stomach

  • Diarrhea or constipation

  • Mild rash or itching

  • Headache, weakness

  • Gas and bloating

  • Metallic taste in the mouth
    However some rare but serious side effects can include:

    • Pancreatitis (severe pain in your upper stomach spreading to your back)
    • Lactic acidosis (symptoms like muscle pain or weakness)
    • Allergic reactions such as shortness of breath; swelling of the face, lips, tongue. Always consult with your healthcare provider if you experience any unusual symptoms.

Are there any potential serious side effects for Janumet?

While Janumet is generally considered safe, it can cause serious side effects in some cases. These include:

  • Signs of an allergic reaction: hives; difficulty breathing or swallowing; swelling of your face, lips, tongue, or throat
  • Pancreatitis: severe pain in your upper stomach spreading to your back, nausea and vomiting, loss of appetite
  • Heart problems: chest pain or pressure, fast heartbeat
  • Kidney problems – little or no urination; painful or difficult urination; swelling in your feet or ankles
  • Feeling short of breath (even with mild exertion), rapid weight gain
  • Ketoacidosis (too much acid in the blood) – nausea and/or vomiting accompanied by abdominal pain

If you notice any of these symptoms while taking Janumet, seek medical attention immediately as they could indicate a potentially serious condition.

Contraindications for Januvia and Janumet?

Both Januvia and Janumet, along with most other antidiabetic medications, may cause hypoglycemia (low blood sugar) in some people. If you experience symptoms of low blood sugar such as sudden sweating, shaking, fast heartbeat, hunger, blurred vision or tingling hands/feet, please seek immediate medical attention.

Neither Januvia nor Janumet should be taken if you are taking drugs that cause harmful interactions like steroids or water pills (diuretics). Always inform your doctor about the list of medications you are currently taking; certain drugs will require a period to clear from your system before starting treatment with either Januvia or Janumet. For instance, insulin and sulfonylurea drugs when used in combination with these medicines can lead to dangerously low blood sugar levels.

Moreover, both these drugs can potentially harm the kidneys so they should not be given to patients suffering from severe kidney disease without appropriate dose adjustment.

How much do Januvia and Janumet cost?

For the brand name versions of these drugs:

  • The price for 30 tablets of Januvia (100 mg) averages around $460, which works out to about $15/day.
  • The price for 60 tablets of Janumet (50/500 mg) is roughly $530, working out to approximately $9/day.

Therefore, if you are taking one tablet per day as typically prescribed for these medications, then brand-name Janumet is less expensive on a per-day treatment basis. However, please note that cost should not be your primary consideration in determining which of these drugs is right for you.

Currently there are no generic versions available in the market for either Januvia or Janumet. It's important to remember prices may vary depending on your location and insurance coverage. Consultation with healthcare professionals will help guide appropriate medication choice based on individual health conditions and requirements.

Popularity of Januvia and Janumet

Januvia, also known as sitagliptin in its generic form, is a commonly prescribed medication for type 2 diabetes. In the US, it was estimated that about 8 million prescriptions were filled for Januvia in 2020. Sitagliptin alone accounts for approximately 15% of DPP-4 inhibitor prescriptions within the country and has been generally stable over the last few years.

On the other hand, Janumet which combines sitagliptin with another antidiabetic drug metformin, had around 2.5 million prescriptions filled in the USA during the same period. This combination therapy represents roughly 5% of total DPP-4 inhibitor prescriptions and signifies an increasing trend towards combination therapies for better sugar control in diabetes patients over recent years.


Januvia (sitagliptin) and Janumet (a combination of sitagliptin and metformin) are both widely used medications for type 2 diabetes, backed by substantial clinical research demonstrating their effectiveness over placebo treatments. In some cases, these drugs may be combined with other antidiabetic agents or insulin when a single drug is not sufficient to control blood glucose levels. Due to different compositions, they serve varying needs: Januvia works by enhancing the body's own ability to lower elevated blood sugar while Janumet combines this action with metformin's effect of reducing liver's glucose production and improving insulin sensitivity.

Both medications come in generic forms offering significant cost savings especially for patients paying out-of-pocket. An adjustment period might be necessary as effects may not become apparent immediately after starting therapy.

The side-effect profiles of both drugs share similarities but differ slightly due to the presence of metformin in Janumet which can cause gastrointestinal issues such as nausea or diarrhea more often than Januvia alone. Patients should monitor their blood glucose levels closely upon initiating treatment and seek immediate medical help if they notice any severe side effects like persistent stomach/abdominal pain or unusual tiredness.