Tell your doctor about all the medications you take, includingprescriptionandover-the-counter medications, vitamins, and supplements. Once you are prescribed and buy Qtern, then Qtern may causepancreatitis. Tell your doctor if you drink alcohol or if you have ever had pancreatitis, gallstones, or high triglycerides. Seek medical care right away if you develop severe stomach pain that persists. Qtern may cause heart failure. Tell your doctor if you have heart problems or kidney problems. Seek medical care right away if you have trouble breathing, swelling in your feet, ankles, or legs, rapid weight gain, or unusual tiredness. This medication may cause dehydration, which can make you feel dizzy or weak. Tell your doctor if you haveblood pressure problems, kidney problems, or if you are on a low-salt diet. Qtern may cause ketoacidosis. Seek medical care right away if you experience nausea, tiredness, vomiting, stomach pain, and trouble breathing. Qtern may cause kidney problems. Seek medical care right away if you are unable to eat or drink, if you lose liquids, or if you've been in the heat for a long time. Qtern may cause urinary tract infections. Tell your doctor right away if you experience burning when urinating, frequent urination, the need to urinate immediately, pelvic pain, or blood in your urine. This medication may cause low blood sugar levels, especially if you take another medicine that can cause low blood sugar. Be aware of the symptoms of low blood sugar such as sweating, nervousness, dizziness, fast heartbeat, hunger, headache, confusion, mood changes, irritability, vision changes, or weakness. Treat your low blood sugar as your doctor has instructed. Qtern may cause bacterial skin infections around the genitals. Seek medical care right away if you develop a fever, weakness, or tiredness and if you have skin tenderness, swelling, or redness. This medication may cause vaginal yeast infections. Tell your doctor if you develop vaginal odor, discharge, or itching. Qtern may cause penile yeast infections. Tell your doctor if you develop penile redness, itching, or swelling, rash, odorous discharge, or pain. Qtern may cause joint pain. Tell your doctor if you develop severe pain in your joints. Qtern may cause a skin reaction calledbullous pemphigoid. Seek medical care right away if you develop skin blisters or breakdown. Tell your doctor if you are pregnant or plan to become pregnant and your doctor should know if you are breastfeeding or plan to breastfeed.