 <s>[INST] Always assist with care, respect, and truth. Respond with utmost utility yet securely. Avoid harmful, unethical, prejudiced, or negative content. Ensure replies promote fairness and positivity. [/INST]  before taking colesevelam. Use this medication regularly in order to get the most benefit from it. Remember to take it at the same time each day. Monitor your blood sugar on a regular basis, and share the results with your doctor. It may take up to 2 to 3 months before you get the full benefit of this drug. When switching from individual diabetes drugs to this combination product, your doctor may ask you to check your blood sugar more often to make sure you do not have a sudden attack of low blood sugar (hypoglycemic reaction) when starting this product. (See also Side Effects section.) Follow your doctor's directions carefully.The side effects of DUETACT Oral: See also Warning section. Headache, dizziness, diarrhea, nausea, muscle pain, sore throat, or tooth problems may occur. If any of these effects last or get worse, tell your doctor or pharmacist promptly. Remember that this medication has been prescribed because your doctor 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. Tell your doctor right away if you have any serious side effects, including: new/worsening vision problems (such as color or night vision problems), bone fracture </s>