Metaglip (glipizide/metformin HCl)
The following drug information is obtained from various newswires, published
medical journal articles, and medical conference presentations.
General Information
Metaglip combines glipizide and metformin HCl two prescribed
oral antidiabetic agents in a single pill. These agents work in
complementary fashion to improve blood sugar in patients with type
2 diabetes.
Metaglip is indicated as initial therapy, as an adjunct to diet
and exercise, to improve glycemic control in patients with type 2
diabetes whose hyperglycemia cannot be satisfactorily managed with
diet and exercise alone. Metaglip is also indicated as second-line
therapy when diet, exercise, and initial treatment with a
sulfonylurea or metformin do not result in adequate glycemic
control in patients with type 2 diabetes.
Clinical Results
In clinical trials, Metaglip was shown to be more effective at
lowering blood sugar levels than either glipizide or metformin used
alone in patients with type 2 diabetes. In a 24-week, double-blind,
active-controlled, multicenter international clinical trial,
patients with type 2 diabetes, whose hyperglycemia was not
adequately controlled with diet and exercise alone were randomized
to receive initial therapy with glipizide (5 mg), metformin (500
mg), Metaglip (2.5 mg/250 mg), or Metaglip (2.5 mg/500 mg).
After 24 weeks, treatment with Metaglip resulted in
significantly greater reduction in Hemoglobin A1c (HbA1c) compared
to glipizide and to metformin therapy. Also, Metaglip therapy
resulted in significant reductions in Fasting Plasma Glucose (FPG)
versus metformin therapy. Increases above fasting glucose and
insulin levels were determined at baseline and final study visits
by measurement of plasma glucose and insulin for three hours
following a standard mixed liquid meal. Treatment with Metaglip
lowered the three-hour postprandial glucose AUC, compared to
baseline, to a significantly greater extent than did the glipizide
and the metformin therapies.
Side Effects
Adverse events associated with the use of Metaglip may include
(but are not limited to) the following:
- Upper respiratory infection
- Diarrhea
- Dizziness
- Hypertension
- Nausea/vomiting
- Headache
- Musculoskeletal pain
- Abdominal pain
- Urinary tract infection
Mechanism of Action
Metaglip combines glipizide and metformin hydrochloride, two
antihyperglycemic agents with complementary mechanisms of action,
to improve glycemic control in patients with type 2 diabetes.
Glipizide appears to lower blood glucose acutely by stimulating
the release of insulin from the pancreas, an effect dependent upon
functioning beta cells in the pancreatic islets. Extrapancreatic
effects may play a part in the mechanism of action of oral
sulfonylurea hypoglycemic drugs.
Metformin hydrochloride is an antihyperglycemic agent that
improves glucose tolerance in patients with type 2 diabetes,
lowering both basal and postprandial plasma glucose. Metformin
hydrochloride decreases hepatic glucose production, decreases
intestinal absorption of glucose, and improves insulin sensitivity
by increasing peripheral glucose uptake and utilization.
Additional Information