- Type 2 Diabetes: Learn the Warning Signs
- Diabetes Friendly Dining
- Type 2 Diabetes: Test Your Medical IQ
- What's the difference between metformin vs. Januvia?
- What is metformin? What is Januvia?
- What are the side effects of metformin and Januvia?
- What is the dosage of metformin vs. Januvia?
- What are the drugs that interact with metformin vs. Januvia?
- Are metformin and Januvia safe to take while pregnant or breastfeeding?
What's the difference between metformin vs. Januvia?
- Metformin and Januvia (sitagliptin) are oral medications that lower blood glucose (sugar) and are used to treat type 2 diabetes.
- Metformin is also used to treat polycystic ovaries and weight gain due to medications used for treating psychoses.
- Brand names of metformin include Glumetza, Glucophage, and Fortamet.
- Side effects of metformin and Januvia that are similar include nausea and diarrhea.
- Side effects of metformin that are different from Januvia include vomiting, gas, bloating, and loss of appetite.
- Side effects of Januvia that are different from metformin include upper respiratory tract infection, headache, and abdominal pain.
What is metformin? What is Januvia?
Metformin is an oral medication that lowers blood glucose (sugar) and is used for treating type 2 diabetes. Metformin increases the sensitivity of liver, muscle, fat, and other tissues to the uptake and effects of insulin, which lowers the sugar levels in the blood. Metformin does not increase the concentration of insulin in the blood and does not cause excessively low blood glucose levels (hypoglycemia) when used alone. Metformin can reduce complications of diabetes such as heart disease, blindness, and kidney disease. Metformin is also used to treat polycystic ovaries and weight gain due to medications used for treating psychoses.
Januvia (sitagliptin) is an oral drug that reduces blood sugar (glucose) levels in patients with type 2 diabetes. Januvia is a DPP-4 inhibitor. Other drugs in this class include saxagliptin (Onglyza) and linagliptin (Tradjenta). Januvia works to reduce blood glucose levels by inhibiting the DPP-4 enzyme and increasing the levels of the hormones GLP-1 and GIP.
What are the side effects of metformin and Januvia?
The most common side effects with metformin are
These symptoms occur in one out of every three patients. These side effects may be severe enough to cause therapy to be discontinued in one out of every 20 patients. These side effects are related to the dose of the medication and may decrease if the dose is reduced.
Metformin may also cause:
- weakness or lack of energy
- respiratory tract infections,
- low levels of vitamin B-12,
- low blood glucose (hyperglycemia)
- indigestion, muscle pain,
- heartburn, and
A serious but rare side effect of metformin is lactic acidosis. Lactic acidosis occurs in one out of every 30,000 patients and is fatal in 50% of cases. The symptoms of lactic acidosis are
- trouble breathing,
- abnormal heartbeats,
- unusual muscle pain,
- stomach discomfort,
- light-headedness, and
- feeling cold.
Patients at risk for lactic acidosis include those with reduced function of the
The most common side effects of sitagliptin are:
Other important side effects of sitagliptin include:
There have been reports of fatal and non-fatal pancreatitis following use of sitagliptin. Acute kidney failure and severe hypersensitivity reactions have also been reported during treatment with sitagliptin.
Latest Diabetes News
Daily Health News
What is the dosage of metformin vs. Januvia?
- For treating type 2 diabetes in adults, metformin (immediate release) usually is begun at a dose of 500 mg twice a day or 850 mg once daily. The dose is gradually increased by 500 mg weekly or 850 mg every two weeks as tolerated and based on the response of the levels of glucose in the blood. The maximum daily dose is 2550 mg given in three divided doses.
- If extended tablets are used, the starting dose is 500 mg or 1000 mg daily with the evening meal. The dose can be increased by 500 mg weekly up to a maximum dose of 2000 mg except for Fortamet (2500 mg of Fortamet, once daily or in two divided doses). Glumetza tablets (500 -1000mg formulations are given once daily (either 1000 to 2000mg). Fortamet and Glumetza are modified release formulations of metformin. Metformin should be taken with meals.
- For pediatric patients 10-16 years of age, the starting dose is 500 mg twice a day. The dose can be increased by 500 mg weekly up to a maximum dose of 2000 mg in divided doses.
- Children older than 17 years of age may receive 500 mg of extended release tablets daily up to a maximum dose of 2000 mg daily. Extended release tablets are not approved for children younger than 17 years of age.
- Metformin-containing drugs may be safely used in patients with mild to moderate renal impairment. Renal function should be assessed before starting treatment and at least yearly.
- Metformin should not be used by patients with an estimated glomerular filtration rate (eGFR) below 30 mL/minute/1.73 m2 and starting metformin in patients with an eGFR between 30-45 mL/minute/1.73 m2 is not recommended.
- Metformin should be stopped at the time of or before administering iodinated contrast in patients with an eGFR between 30 and 60 mL/minute/1.73 m2; in patients with a history of liver disease, alcoholism, or heart failure; or in patients who will be administered intra-arterial iodinated contrast. Kidney function should be evaluated 48 hours after receiving contrast and metformin may be restarted if kidney function is stable.
- Sitagliptin may be taken with or without food. The recommended dose is 100 mg once daily. Renal function should be assessed prior to starting sitagliptin and periodically during treatment. The dose of sitagliptin should be modified based on renal function.
What are the drugs that interact with metformin vs. Januvia?
- Cimetidine (Tagamet), by decreasing the elimination of metformin from the body, can increase the amount of metformin in the blood by 40%. This may increase the frequency of side effects from metformin.
- Ioversol (Optiray) and other iodinated contrast media may reduce kidney function, which reduces elimination of metformin, leading to increased concentrations of metformin in the blood. Metformin should be stopped 48 hours before and after use of contrast media.
- Thiazide diuretics, steroids, estrogens, and oral contraceptives may increase blood glucose and reduce the effect of metformin. When these drugs are stopped, patients should be closely observed for signs of low blood glucose.
- Alcohol consumption increases the effect of metformin on lactate production, increasing the risk of lactic acidosis.
- Sitagliptin may slightly increase the concentration of digoxin (Lanoxin) in the body when both drugs are being taken. Digoxin concentrations should be monitored appropriately. The occurrence of low blood glucose increases when sitagliptin is combined with a sulfonylurea (for example, glyburide [Micronase, Diabeta, Glynase, Prestab]) or insulin. The dose of insulin or sulfonylurea should be reduced.
Are metformin and Januvia safe to take while pregnant or breastfeeding?
- There are no adequate studies in pregnant women. Most experts agree that insulin is the best treatment for pregnant women with diabetes.
- Metformin is excreted into breast milk and can, therefore, be transferred to the nursing infant. Nursing mothers should not use metformin.
- There are no adequate studies of sitagliptin in pregnant women.
- It is unknown whether sitagliptin is secreted in human breast milk.
Metformin and Januvia (sitagliptin) are oral medications that lower blood glucose (sugar) and are used to treat type 2 diabetes. Metformin is also used to treat polycystic ovaries and weight gain due to medications used for treating psychoses.
Multimedia: Slideshows, Images & Quizzes
Type 2 Diabetes: Signs, Symptoms, Treatments
Learn about type 2 diabetes warning signs, symptoms, diagnosis, and treatment options. Find out why thirst, headaches, and...
Diabetes: What Raises and Lowers Your Blood Sugar Level?
Want to lower your blood sugar? Learn to better control your glucose levels by preventing blood sugar spikes and swings to avoid...
Diabetes Diet: Healthy Meal Plans for Diabetes-Friendly Eating
Discover the best and worst meals for diabetes-savvy dining. See how to avoid carbs and control your blood sugar with healthier...
Type 2 Diabetes: Test Your Medical IQ
What causes type 2 diabetes? Can it be prevented? Take this online quiz and challenge your knowledge of this common condition....
Diabetes Quiz: Test Your Medical IQ
Take the Diabetes Quiz and learn the causes, signs, symptoms, and types of this growing epidemic. What does diabetes have to do...
Slideshow: Diabetes Management in 10 Minutes
Learn 10 simple ways to better manage your diabetes. See tips for controlling blood sugar, diet and exercise and other helpful...
Diabetes Diet: 11 Low-Sugar Drink Ideas
Searching for low-sugar drink ideas? This pictures slideshow has eleven beverages ideal for people with diabetes and those...
Related Disease Conditions
Diabetes (Type 1 and Type 2)
Diabetes is a chronic condition characterized by high levels of sugar (glucose) in the blood. The two types of diabetes are referred to as type 1 (insulin dependent) and type 2 (non-insulin dependent). Symptoms of diabetes include increased urine output, thirst, hunger, and fatigue. Treatment of diabetes depends on the type.
Type 2 Diabetes Diet Plan
A type 2 diabetes diet or a type 2 diabetic diet is important for blood sugar (glucose) control in people with diabetes to prevent complications of diabetes. There are a variety of type 2 diabetes diet eating plans such as the Mediterranean diet, Paleo diet, ADA Diabetes Diet, and vegetarian diets.Learn about low and high glycemic index foods, what foods to eat, and what foods to avoid if you have type 2 diabetes.
Type 1 vs. Type 2 Diabetes: Differences
Diabetes mellitus is a metabolic condition in which a person's blood sugar (glucose) levels are too high. Over 29.1 million children and adults in the US have diabetes. Of that, 8.1 million people have diabetes and don't even know it. Type 1 diabetes (insulin-dependent, juvenile) is caused by a problem with insulin production by the pancreas. Type 2 diabetes (non-insulin dependent) is caused by: Eating a lot of foods and drinking beverages with simple carbohydrates (pizza, white breads, pastas, cereals, pastries, etc.) and simple sugars (donuts, candy, etc.) Consuming too many products with artificial sweeteners (We found out that they are bad for us!) Lack of activity Exercise Stress Genetics While the signs and symptoms of both types of diabetes are the same, which include: Increased urination Increased hunger Increased thirst Unexplained weight loss. However, the treatments are different. Type 1 diabetes is insulin dependent, which means a person with this type of diabetes requires treatment with insulin. People with type 2 diabetes require medication, lifestyle changes like eating a healthy diet, and getting regular exercise.
Second Source article from Government
Type 2 Diabetes
Type 2 diabetes is a chronic condition that may be reversible with diet and lifestyle changes. Symptoms include excessive thirst, frequent urination, weight loss, fatigue, and an unusual odor to your urine. Most people don't know they have type 2 diabetes until they have a routine blood test. Treatment options include medications, a type 2 diabetes diet, and other lifestyle changes.
Diabetes and Safe Medications for Colds and the Flu: OTC Medication Guide
If you have diabetes and catch a cold or the flu, can be more difficult to recover from infections and their complications, for example, pneumonia. Home remedies and over-the-counter (OTC) drugs used for the treatment of the signs and symptoms of colds and the flu may affect blood sugar levels in people with diabetes.Some medications are OK to take if you have diabetes get a cold or the flu include nonsteroidal anti-inflammatory drugs or NSAIDs, like acetaminophen (Tylenol) and ibuprofen (Motrin) to control symptoms of fever and pain. Most cough syrups are safe to take; however, check with your pediatrician to see what medications are safe to give your child if he or she has type 1 or 2 diabetes. If you have diabetes and are sick with a cold or flu, you need to check your blood sugar levels more frequently. Continue taking your regular medications. Eat a diabetic low-glycemic index diet rich in antioxidants. To prevent colds and the flu drink at least eight 8 ounce glasses of water a day. To replenish fluids, drink sports drinks like Gatorade and Pedialyte to replenish electrolytes. Avoid people who are sick, sneezing, coughing, or have other symptoms of a cold or flu.
Diabetes Treatment: Medication, Diet, and Insulin
The major goal in treating diabetes is controlling elevated blood sugar without causing abnormally low levels of blood sugar. Type 1 diabetes is treated with: insulin, exercise, and a diabetic diet. Type 2 diabetes is first treated with: weight reduction, a diabetic diet, and exercise. When these measures fail to control the elevated blood sugar, oral medications are used. If oral medications are still insufficient, insulin medications are considered.
Types of Diabetes Type 2 Medications
Type 2 diabetes oral medications are prescribed to treat type 2 diabetes in conjuction with lifestyle changes like diet and exercise. There are nine classes of drugs approved for the treatment of type 2 diabetes. Examples of type 2 oral diabetes medications include acarbose (Precose), chlorpropamide (Diabinese), glipizide (Glucotrol, Glucotrol XL), and metformin (Glucophage). Side effects, drug interactions, warnings and precautions, dosage, and breastfeeding and pregnancy safety information should be reviewed prior to taking any medication.
Diabetes Foot Problems
Diabetes related foot problems can affect your health with two problems: diabetic neuropathy, where diabetes affects the nerves, and peripheral vascular disease, where diabetes affects the flow of blood. Common foot problems for people with diabetes include athlete's foot, fungal infection of nails, calluses, corns, blisters, bunions, dry skin, foot ulcers, hammertoes, ingrown toenails, and plantar warts.
Eye Problems and Diabetes
Diabetes and eye problems are generally caused by high blood sugar levels over an extended period of time. Types of eye problems in a person with diabetes include glaucoma, cataracts, and retinopathy. Examples of symptoms include blurred vision, headaches, eye aches, pain, halos around lights, loss of vision, watering eyes. Treatment for eye problems in people with diabetes depend on the type of eye problem. Prevention of eye problems include reducing blood pressure, cholesterol levels, quitting smoking, and maintaining proper blood glucose levels.
Diabetes and Kidney Disease
In the United States diabetes is the most common cause of kidney failure. High blood pressure and high levels of blood glucose increase the risk that a person with diabetes will eventually progress to kidney failure. Kidney disease in people with diabetes develops over the course of many years. albumin and eGFR are two key markers for kidney disease in people with diabetes. Controlling high blood pressure, blood pressure medications, a moderate protein diet, and compliant management of blood glucose can slow the progression of kidney disease. For those patients who's kidneys eventually fail, dialysis or kidney transplantation is the only option.
Tips for Managing Type 1 and 2 Diabetes at Home
Managing your diabetes is a full time commitment. The goal of diabetic therapy is to control blood glucose levels and prevent the complications of diabetes. Information about exercise, diet, and medication will help you manage your diabetes better. Blood glucose reagent strips, blood glucose meters, urine glucose tests, tests for urinary ketones, continuous glucose sensors, and Hemoglobin A1C testing information will enable you to mange your diabetes at home successfully.
Treatment & Diagnosis
- Diabetes Alert Day
- Diabetes: Maintaining Control with Nutrition
- Diabetes and Diet: What Do I Eat?
- Diabetes: Your Guide to Life With Diabetes
- Diabetes: Scientific Research for Type I Diabetes
- Diabetes: Your Treatment Options
- Diabetes: The Doctor is In: Discussing Diabetes -- Brunilda Nazario, MD -- 03/18/03
- Diabetes FAQs
- Type 2 Diabetes FAQs
- Diabetes Type I...Insulin Therapy
- Exercise Therapy in Type 2 Diabetes - Part 1
- Exercise Therapy in Diabetes - Part 2
- Can You Get Diabetes from Stress?
- Can oral diabetes medications cause impotence?
- Can You Have Type 1 Diabetes Without Symptoms?
- 6 Frequently Asked Diabetes Question
- Can Diabetes Cause Muscle Pain?
- 11 Diabetes Diet Tips for the Holidays
- Diabetes: Eating Well with Type 2 Diabetes
- Diabetes: What Can I Eat?
Medications & Supplements
Health Solutions From Our Sponsors
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.