45b326c5_Chart___Joslin_Diabetes_Center__3
[0] Bile Acid Sequestrants Colesevelam (Welchol) [1] Take once or twice a day with a meal and liquid. [2] Works with other diabetes medications to lower blood glucose. [4] Primary effect, when used either alone or with a statin, is to lower LDL cholesterol; has blood glucose-lowering effect when taken in combination with certain diabetes medications. Before taking this medication, tell your healthcare provider if you have high triglycerides (blood fats) or stomach problems. If you take thyroid medication or glyburide, take them 4 hours before taking Welchol. Tell your healthcare provider if you have side effects that bother you or that don’t go away. [3] 
Constipation, nausea, diarrhea, gas, heartburn, headache (may interact with glyburide, levothyroxine and contraceptives)
Oral Diabetes Medications Chart | Joslin Diabetes Center
3