See also Warning section.
Before taking Janumet (Sitagliptin/Metformin) 50/1000mg, tell your doctor or pharmacist if you are allergic to sitagliptin or metformin; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.
Before using Janumet (Sitagliptin/Metformin) 50/1000mg, tell your doctor or pharmacist your medical history, especially of: severe breathing problems (such as obstructive lung disease, severe asthma), metabolic acidosis (such as diabetic ketoacidosis), blood problems (such as anemia, vitamin B12 deficiency), kidney disease, liver disease, disease of the pancreas (pancreatitis), stones in your gallbladder (gallstones).
Before having surgery or any X-ray/scanning procedure using injectable iodinated contrast material, tell your doctor that you are taking Janumet (Sitagliptin/Metformin) 50/1000mg. You will need to temporarily stop Janumet (Sitagliptin/Metformin) 50/1000mg before the time of your surgery/procedure. Consult your doctor for further instructions.
You may experience blurred vision, dizziness, or drowsiness due to extremely low or high blood sugar levels. Do not drive, use machinery, or do any activity that requires alertness or clear vision until you are sure you can perform such activities safely.
Limit alcohol while using Janumet (Sitagliptin/Metformin) 50/1000mg because it can increase your risk of lactic acidosis and developing low blood sugar.
High fever, "water pills" (diuretics such as hydrochlorothiazide), too much sweating, diarrhea, or vomiting may cause loss of too much body water (dehydration) and increase your risk of lactic acidosis. Stop taking Janumet (Sitagliptin/Metformin) 50/1000mg and tell your doctor right away if you have prolonged diarrhea or vomiting. Be sure to drink enough fluids to prevent dehydration unless your doctor directs you otherwise.
It may be harder to control your blood sugar when your body is stressed (such as due to fever, infection, injury, or surgery). Consult your doctor because increased stress may require a change in your treatment plan, medications, or blood sugar testing.
Older adults may be a greater risk for side effects such as low blood sugar or lactic acidosis.
During pregnancy, Janumet (Sitagliptin/Metformin) 50/1000mg should be used only when clearly needed. Discuss the risks and benefits with your doctor. Your doctor may direct you to use insulin instead of this product during your pregnancy. Follow your doctor's instructions carefully.
Metformin can cause changes in the menstrual cycle (promote ovulation) and increase the risk of becoming pregnant. Consult your doctor or pharmacist about the use of reliable birth control while using Janumet (Sitagliptin/Metformin) 50/1000mg.
Metformin passes into breast milk in small amounts. It is unknown if sitagliptin passes into breast milk. Consult your doctor before breast-feeding.
Store at room temperature away from light and moisture. Do not store in the bathroom. Keep all medications away from children and pets.
Do not flush medications down the toilet or pour them into a drain unless instructed to do so. Properly discard this product when it is expired or no longer needed. Consult your pharmacist or local waste disposal company for more details about how to safely discard your product.
This combination medication is used with a proper diet and exercise program and possibly with other medications to control high blood sugar. Janumet (Sitagliptin/Metformin) 50/1000mg is used in patients with type 2 diabetes (non-insulin-dependent diabetes).
This product contains 2 medications. Sitagliptin works by increasing levels of natural substances called incretins. Incretins help to control blood sugar by increasing insulin release, especially after a meal. They also decrease the amount of sugar your liver makes. Metformin works by helping to restore your body's proper response to the insulin you naturally produce. It also decreases the amount of sugar that your liver makes and that your stomach/intestines absorb.
Controlling high blood sugar helps prevent kidney damage, blindness, nerve problems, loss of limbs, and sexual function problems. Proper control of diabetes may also lessen your risk of a heart attack or stroke.
Janumet (Sitagliptin/Metformin) 50/1000mg should not be used to treat people with type 1 diabetes (insulin-dependent diabetes).
Read the Medication Guide provided by your pharmacist before you start using Janumet (Sitagliptin/Metformin) 50/1000mg and each time you get a refill. If you have any questions, ask your doctor or pharmacist.
Take Janumet (Sitagliptin/Metformin) 50/1000mg by mouth as directed by your doctor, usually twice a day with meals. Drink plenty of fluids while taking Janumet (Sitagliptin/Metformin) 50/1000mg unless otherwise directed by your doctor. The manufacturer directs not to split/break/cut the tablet before taking it. However, many similar drugs (immediate-release tablets) can be split/cut. Follow your doctor's directions on how to take Janumet (Sitagliptin/Metformin) 50/1000mg.
The dosage is based on your medical condition, kidney function, and response to treatment. Your doctor may direct you to take a low dose of Janumet (Sitagliptin/Metformin) 50/1000mg at first, gradually increasing your dose to lower the chance of side effects such as upset stomach. Your doctor will adjust your dose based on your blood sugar levels to find the best dose for you. Follow your doctor's directions carefully. The maximum recommended dose for this combination medication is 100 milligrams of sitagliptin and 2000 milligrams of metformin each day.
Take Janumet (Sitagliptin/Metformin) 50/1000mg regularly in order to get the most benefit from it. Remember to use Janumet (Sitagliptin/Metformin) 50/1000mg at the same times each day.
If you are already taking another anti-diabetic drug (such as pioglitazone), follow your doctor's directions carefully for stopping/continuing the old drug and starting Janumet (Sitagliptin/Metformin) 50/1000mg. Carefully follow the medication treatment plan, meal plan, and exercise program your doctor has recommended.
Check your blood sugar regularly as directed by your doctor. Keep track of the results, and share them with your doctor. Tell your doctor if your blood sugar measurements are too high or too low. Your dosage/treatment may need to be changed.
See also Warning section.
Nausea, vomiting, stomach upset, diarrhea, headache, weakness, or a metallic taste in the mouth may occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly. If stomach symptoms return later (after taking the same dose for several days or weeks), tell your doctor immediately. Stomach symptoms that occur after the first days of your treatment may be signs of lactic acidosis.
Remember that your doctor has prescribed Janumet (Sitagliptin/Metformin) 50/1000mg because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using Janumet (Sitagliptin/Metformin) 50/1000mg do not have serious side effects.
Janumet (Sitagliptin/Metformin) 50/1000mg does not usually cause low blood sugar (hypoglycemia). Low blood sugar may occur if Janumet (Sitagliptin/Metformin) 50/1000mg is prescribed with other anti-diabetic medications. Talk with your doctor or pharmacist about whether the dose of your other diabetic medication(s) needs to be lowered.
Symptoms of low blood sugar include sudden sweating, shaking, fast heartbeat, hunger, blurred vision, dizziness, or tingling hands/feet. It is a good habit to carry glucose tablets or gel to treat low blood sugar. If you don't have these reliable forms of glucose, rapidly raise your blood sugar by eating a quick source of sugar such as table sugar, honey, or candy, or drink fruit juice or non-diet soda. Tell your doctor about the reaction immediately. Low blood sugar is more likely if you drink large amounts of alcohol, do unusually heavy exercise, or do not consume enough calories from food. To help prevent low blood sugar, eat meals on a regular schedule, and do not skip meals. Check with your doctor or pharmacist to find out what you should do if you miss a meal.
Symptoms of high blood sugar (hyperglycemia) include thirst, increased urination, confusion, drowsiness, flushing, rapid breathing, and fruity breath odor. If these symptoms occur, tell your doctor immediately. Your doctor may need to adjust your diabetes medication(s).
Tell your doctor right away of any serious side effects, including: change in the amount of urine.
Stop taking Janumet (Sitagliptin/Metformin) 50/1000mg and tell your doctor right away if any of these very serious side effects occur: signs of pancreatitis (such as persistent nausea/vomiting, loss of appetite, severe stomach/abdominal/back pain), lactic acidosis (see Warning section).
A very serious allergic reaction to Janumet (Sitagliptin/Metformin) 50/1000mg is rare. However, get medical help right away if you notice any of the following symptoms of a serious allergic reaction: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.
This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.
Click here to view a more detailed list of Janumet side effects.
If you miss a dose of Janumet (Sitagliptin/Metformin) 50/1000mg, take it as soon as you remember. If it is near the time of the next dose, skip the missed dose and resume your usual dosing schedule. Do not double the dose to catch up.
Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor's approval.
Many drugs can affect your blood sugar levels, making it more difficult to control your blood sugar. Before you start, stop, or change any medication, talk with your doctor or pharmacist about how the medication may affect your blood sugar. Check your blood sugar levels regularly as directed by your doctor. Tell your doctor about the results and of any symptoms of high or low blood sugar. (See also Side Effects section.) Your doctor may need to adjust your anti-diabetic medication, exercise program, or diet.