The combination regimen of 2 antidiabetic agents, repaglinide and metformin hydrochloride, offers different mechanisms of action to improve glycemic control among patients with type 2 diabetes mellitus. Repaglinide, a prandial glucose regulator, increases insulin release. Metformin, an insulin sensitizer, decreases intestinal absorption of glucose, decreases hepatic glucose output, and increases peripheral glucose uptake and utilization?.
藥動學
Absorption:
Bioavailability: Repaglinide 56% ;Metformin 50% to 60%
Distribution:
Vd:Repaglinide 31 L ;Metformin 654 +/- 358 L
Metabolism:
Repaglinide, Hepatic: via P450 3A4 and 2C8 enzymes;Metformin hydrochloride, does not undergo hepatic or biliary metabolism
Excretion:
Renal: Repaglinide 8%; Metformin 90%
Repaglinide, Dialyzable: no (hemodialysis);Metformin , Dialyzable: yes (hemodialysis), up to 170 mL/min
Elimination Half Life:
Repaglinide, adults: approximately 1 hr ;Metformin, adults: 6.2 hrs
禁忌症
Severe renal impairment (eGFR below 30 mL/min/1.73 m(2))
Metabolic acidosis, acute or chronic, including diabetic ketoacidosis
Concomitant therapy with gemfibrozil
Hypersensitivity to metformin hydrochloride, repaglinide, or any other component of the product
General Dosage Information:
titrate dose for optimal glycemic control; MAX, 10 mg repaglinide and 2500 mg metformin hydrochloride daily, or 2 tablets (2 mg repaglinide/500 mg metformin hydrochloride) (equivalent of 4 mg repaglinide/1000 mg metformin hydrochloride) per meal
Type 2 diabetes mellitus:
(Inadequate control with metformin hydrochloride monotherapy) Initial, 1 tab (repaglinide 1 mg/metformin 500 mg) orally twice daily within 15 minutes prior to a meal
Iodinated contrast imaging procedure: Discontinue metformin at the time of or before procedure in patients with a history of liver disease, alcoholism, or heart failure, or with planned intraarterial administration of iodinated contrast; evaluate estimated GFR 48 hours after the imaging procedure and restart metformin if renal function is stable
小兒調整劑量
General Dosage Information:
safety and efficacy not established in pediatric patients
腎功能調整劑量
Renal impairment (estimated GFR less than 30 mL/min/1.73 m(2)): Use is contraindicated
Renal impairment (estimated GFR between 30 to 45 mL/min/1.73 m(2)): Use is not recommended
Renal impairment (estimated GFR falls less than 45 mL/min/1.73 m(2) after initiation): Assess benefits and risks of continuing treatment
Renal impairment (estimated GFR falls below 30 mL/min/1.73 m(2) after initiation): Discontinue treatment
Renal impairment (patients undergoing iodinated contrast imaging procedure, estimated GFR between 30 to 60 mL/min/1.73 m(2)): Discontinue at time of or before procedure; evaluate estimated GFR 48 hours after imaging procedure; restart if renal function stable