sitagliptin (Oral route)Pronunciation
Commonly used brand name(s)
In the U.S.
Available Dosage Forms:
Therapeutic Class: Antidiabetic
Pharmacologic Class: Dipeptidyl Peptidase IV Inhibitor
Uses For sitagliptin
Sitagliptin is used alone or together with other medicines (e.g., insulin, glimepiride, metformin, or pioglitazone) to treat high blood sugar levels caused by type 2 diabetes. Normally, after you eat, your pancreas releases insulin to help your body store excess sugar for later use. This process occurs during normal digestion of food. In patients with type 2 diabetes, your body does not work properly to store the excess sugar and the sugar remains in your blood. Chronic high blood sugar can lead to serious health problems in the future.
Many people can control type 2 diabetes with diet alone or diet and exercise. Following a specially planned diet and exercising will always be important when you have diabetes, even when you are taking medicines. To work properly, the amount of sitagliptin you take must be balanced against the amount and type of food you eat and the amount of exercise you do. If you change your diet, your exercise, or both, you will want to test your blood sugar to find out if it is too low. Your doctor will teach you what to do if this happens.
Sitagliptin does not help patients who have insulin-dependent or type 1 diabetes, because they cannot produce insulin from their pancreas. Their blood sugar is best controlled with insulin injections.
sitagliptin is available only with your doctor's prescription.
Before Using sitagliptin
In deciding to use a medicine, the risks of taking the medicine must be weighed against the good it will do. This is a decision you and your doctor will make. For sitagliptin, the following should be considered:
Tell your doctor if you have ever had any unusual or allergic reaction to sitagliptin or any other medicines. Also tell your health care professional if you have any other types of allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, read the label or package ingredients carefully.
Appropriate studies have not been performed on the relationship of age to the effects of sitagliptin in the pediatric population. Safety and efficacy have not been established.
Appropriate studies performed to date have not demonstrated geriatric-specific problems that would limit the usefulness of sitagliptin in the elderly. However, elderly patients are more likely to have age-related kidney problems, which may require an adjustment in the dose for patients receiving sitagliptin.
|All Trimesters||B||Animal studies have revealed no evidence of harm to the fetus, however, there are no adequate studies in pregnant women OR animal studies have shown an adverse effect, but adequate studies in pregnant women have failed to demonstrate a risk to the fetus.|
There are no adequate studies in women for determining infant risk when using this medication during breastfeeding. Weigh the potential benefits against the potential risks before taking this medication while breastfeeding.
Interactions with Medicines
Although certain medicines should not be used together at all, in other cases two different medicines may be used together even if an interaction might occur. In these cases, your doctor may want to change the dose, or other precautions may be necessary. When you are taking sitagliptin, it is especially important that your healthcare professional know if you are taking any of the medicines listed below. The following interactions have been selected on the basis of their potential significance and are not necessarily all-inclusive.
Using sitagliptin with any of the following medicines is usually not recommended, but may be required in some cases. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.
- Insulin Degludec
Interactions with Food/Tobacco/Alcohol
Certain medicines should not be used at or around the time of eating food or eating certain types of food since interactions may occur. Using alcohol or tobacco with certain medicines may also cause interactions to occur. Discuss with your healthcare professional the use of your medicine with food, alcohol, or tobacco.
Other Medical Problems
The presence of other medical problems may affect the use of sitagliptin. Make sure you tell your doctor if you have any other medical problems, especially:
- Alcohol, excessive use of or
- Gallbladder stones or
- Hypercholesterolemia (high cholesterol in the blood) or
- Hypertriglyceridemia (high triglycerides or fats in the blood) or
- Pancreas problems, history of—Use with caution. May increase risk for getting pancreatitis (swelling and inflammation of the pancreas).
- Angioedema (swelling of the face, lips, tongue, throat, arms, or legs), history with this medication or other dipeptidyl peptidase-4 (DPP-4) inhibitors—Use with caution. May increase the risk of this condition occurring again.
- Diabetic ketoacidosis (high ketones and acid in the blood) or
- Type 1 diabetes—Should not be used in patients with these conditions.
- Kidney disease, moderate or severe—Use with caution. The effects may be increased because of slower removal of the medicine from the body.
Proper Use of sitagliptin
Your doctor will tell you how much of sitagliptin to use and how often. Your dose may need to be changed several times in order to find out what works best for you. Do not use more medicine or use it more often than your doctor tells you to.
sitagliptin should come with a Medication Guide. Read and follow these instructions carefully. Ask your doctor if you have any questions.
Carefully follow the special meal plan your doctor gave you. This is the most important part of controlling your diabetes, and is necessary if the medicine is to work properly. Exercise regularly and test for sugar in your blood or urine as directed.
You may take sitagliptin with or without food.
The dose of sitagliptin will be different for different patients. Follow your doctor's orders or the directions on the label. The following information includes only the average doses of sitagliptin. If your dose is different, do not change it unless your doctor tells you to do so.
The amount of medicine that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine.
- For oral dosage form (tablets):
- For type 2 diabetes:
- Adults—100 milligrams (mg) once a day.
- Children—Use and dose must be determined by your doctor.
- For type 2 diabetes:
If you miss a dose of sitagliptin, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not double doses.
Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep from freezing.
Keep out of the reach of children.
Do not keep outdated medicine or medicine no longer needed.
Ask your healthcare professional how you should dispose of any medicine you do not use.
Precautions While Using sitagliptin
It is very important that your doctor check your progress at regular visits to make sure that sitagliptin is working properly and to decide if you should continue to take it. Blood and urine tests may be needed to check for unwanted effects.
sitagliptin may cause serious allergic reactions, including anaphylaxis, angioedema, or certain skin conditions (Stevens-Johnson syndrome). These reactions can be life-threatening and require immediate medical attention. Call your doctor right away if you have a rash, itching, blistering, peeling, or loosening of the skin, fever or chills, trouble breathing or swallowing, or any swelling of your hands, face, mouth, or throat while you are using sitagliptin.
Pancreatitis (swelling and inflammation of the pancreas) may occur while you are using sitagliptin. Stop using sitagliptin and check with your doctor right away if you have a sudden and severe stomach pain, chills, constipation, nausea, vomiting, loss of appetite, fever, or lightheadedness.
sitagliptin may cause hypoglycemia (low blood sugar). Low blood sugar can also occur if you delay or miss a meal or snack, exercise more than usual, drink alcohol, cannot eat because of nausea or vomiting, take certain medicines, or take sitagliptin with another type of diabetes medicine (e.g., insulin, glimepiride, metformin, or pioglitazone). Symptoms of low blood sugar must be treated before they cause you to pass out (unconsciousness). People feel different symptoms with low blood sugar. It is important that you learn which symptoms you usually have so you can treat it quickly.
Symptoms of low blood sugar include anxiety, behavior changes similar to being drunk, blurred vision, cold sweats, confusion, cool, pale skin, difficulty with thinking, drowsiness, excessive hunger, a fast heartbeat, headaches that continue, nausea, nervousness, nightmares, restless sleep, shakiness, slurred speech, or unusual tiredness or weakness.
If symptoms of low blood sugar occur, check your blood sugar level. If you have low blood sugar, eat glucose tablets or gel, corn syrup, honey, or sugar cubes; or drink fruit juice, non-diet soft drinks, or sugar dissolved in water. Glucagon is a medicine that is used in emergency situations when severe symptoms, such as seizures (convulsions) or unconsciousness occur. Have a glucagon kit available, along with a syringe and needle, and know how to use it. The members of your family should also know how to use glucagon.
Hyperglycemia (high blood sugar) may occur if you do not take enough or skip a dose of your medicine, overeat or do not follow your diet plan, have a fever or infection, or do not exercise as much as usual.
Symptoms of high blood sugar include blurred vision, drowsiness, dry mouth, flushed, dry skin, fruit-like breath odor, increased urination (frequency and amount), loss of appetite, sleepiness, stomachache, nausea, or vomiting, tiredness, troubled breathing (rapid and deep), unconsciousness (passed out), or unusual thirst.
If symptoms of high blood sugar occur, check your blood sugar level and call your doctor for instructions.
There may be a time when you need emergency help for a problem caused by your diabetes. You need to be prepared for these emergencies. It is a good idea to wear a medical identification (ID) bracelet or neck chain at all times. Also, carry an ID card in your wallet or purse that says you have diabetes with a list of all your medicines.
sitagliptin Side Effects
Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.
Check with your doctor immediately if any of the following side effects occur:Less common
- blurred vision
- cold sweats
- cool, pale skin
- fast heartbeat
- increased hunger
- loss of consciousness
- slurred speech
- unusual tiredness or weakness
Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:More common
- Body aches or pain
- difficulty with breathing
- ear congestion
- loss of voice
- muscle aches
- sore throat
- stuffy or runny nose
- Abdominal or stomach pain
Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.
Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.
See also: Side effects (in more detail)
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