Nateglinide is used alone or with other medications to control high blood sugar along with a proper diet and exercise program. It is used in people with type 2 diabetes. 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. It works by stimulating the body to produce more insulin. Insulin is a natural substance that allows the body to properly use sugar from the diet.
Read the Patient Information leaflet if one is available from your pharmacist before you start using nateglinide and each time you get a refill. If you have any questions, consult your doctor or pharmacist. Take this medication by mouth 1-30 minutes before each main meal, usually 3 times daily, or as directed by your doctor. Take this drug no earlier than 30 minutes before the meal. Do not take a dose of medication if you are skipping that meal. If you are having liquid meals, a higher dose of this medication may be necessary to control your blood sugar. Consult your doctor for more details. The dosage is based on your medical condition, number of meals per day, and response to treatment. Use this medication regularly as directed by your doctor in order to get the most benefit from it. 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. This is very important in order to determine the correct dose. Tell your doctor if your blood sugar measurements are too high or too low. Your treatment plan may need to be changed.
Weight gain may occur. If this effect persists or worsens, notify your doctor or pharmacist promptly. Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects. Nateglinide can cause low blood sugar (hypoglycemia) especially if you are taking other medicines for diabetes. Consuming large quantities of alcohol, not getting enough calories from food, or doing unusually heavy exercise may also lead to low blood sugar. Symptoms may include chills, cold sweat, dizziness, drowsiness, shaking, fast heartbeat, weakness, headache, fainting, tingling of the hands or feet, or hunger. 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, raise your blood sugar quickly by eating a quick source of sugar such as table sugar, honey, candy, or drinking a glass of fruit juice or non-diet soda. 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 right away. Your doctor may need to adjust your diabetes medication(s). A very serious allergic reaction to this drug is rare. However, seek immediate medical attention 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. In the US - Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or at www.fda.gov/medwatch. In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.
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.
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, making it harder to control. Examples include corticosteroids (such as prednisone), psychiatric medicines (such as olanzapine), fluoroquinolone antibiotics (such as ciprofloxacin), among others. Check your blood sugar regularly as directed and share the results with your doctor. Tell your doctor right away if you have symptoms of high or low blood sugar. (See also Side Effects section.) Your doctor may need to adjust your diabetes medication, exercise program, or diet. Check the labels on all your nonprescription medicines (such as cough-and-cold products) because they may contain ingredients that could affect your blood sugar. Ask your pharmacist about the safe use of those products. Beta-blocker medications (such as metoprolol, propranolol, glaucoma eye drops such as timolol) may prevent the fast/pounding heartbeat you would usually feel when your blood sugar falls too low (hypoglycemia). Other symptoms of low blood sugar such as dizziness, hunger, or sweating are unaffected by these drugs. Other medications can affect the results of urine tests for sugar or ketones. Consult your doctor or pharmacist for more information.
If someone has overdosed and has serious symptoms such as passing out or trouble breathing, call 911. Otherwise, call a poison control center right away. US residents can call their local poison control center at 1-800-222-1222. Canada residents can call a provincial poison control center. Symptoms of overdose may include: very fast heartbeat, vision changes, unexplained heavy sweating, agitation, fainting, seizures.