It is very important that your doctor check your progress at regular visits to make sure that this medicine is working properly. Blood and urine tests may be needed to check for unwanted effects.
This medicine 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 linagliptin with other diabetes medicine (e.g., glimepiride, glipizide, or glyburide). 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.
The 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.
The 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.
Do not take other medicines unless they have been discussed with your doctor. This includes prescription or nonprescription (over-the-counter [OTC]) medicines and herbal or vitamin supplements.