Estrogens
Taking
Glucophage with estrogens can make Glucophage less effective, increasing your chance of high blood sugar (hyperglycemia). You may need to be monitored more closely, and your healthcare provider may need to adjust your Glucophage dose, especially when starting or stopping an estrogen.
Isoniazid
Taking Glucophage with isoniazid can make Glucophage less effective, increasing your chance of high blood sugar (hyperglycemia). You may need to be monitored more closely, and your healthcare provider may need to adjust your Glucophage dose, especially when starting or stopping isoniazid.
Niacin
Taking Glucophage with niacin can make Glucophage less effective, increasing your chance of high blood sugar (hyperglycemia). You may need to be monitored more closely, and your healthcare provider may need to adjust your Glucophage dose, especially when starting or stopping niacin.
Oral Contraceptives
Taking Glucophage with
oral contraceptives (
birth control pills) can make Glucophage less effective, increasing your chance of high blood sugar (hyperglycemia). You may need to be monitored more closely, and your healthcare provider may need to adjust your Glucophage dose, especially when starting or stopping an oral contraceptive.
Phenothiazines
Taking Glucophage with phenothiazines can make Glucophage less effective, increasing your chance of high blood sugar (hyperglycemia). You may need to be monitored more closely, and your healthcare provider may need to adjust your Glucophage dose, especially when starting or stopping a phenothiazine.
Phenytoin (Dilantin)
Taking Glucophage with
phenytoin can make Glucophage less effective, increasing your chance of high blood sugar (hyperglycemia). You may need to be monitored more closely, and your healthcare provider may need to adjust your Glucophage dose, especially when starting or stopping phenytoin.