glipizide/metformin (Rx)

Brand and Other Names:Metaglip
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Dosing & Uses

AdultPediatricGeriatric

Dosage Forms & Strengths

glipizide/metformin

tablet

  • 2.5mg/250mg
  • 2.5mg/500mg
  • 5mg/500mg
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Type 2 Diabetes Mellitus

Initial treatment: start at 2.5 mg/250 mg (glipizide/metformin) PO qDay with food

If fasting plasma glucose = 280-320 mg/dL: 2.5/500 mg PO q12hr

Titrate q2week to no more than 10/2000 mg per day in divided doses

Type 2 DM Inadequately Controlled on Sulfonylurea &/or Metformin

2nd-line treatment: Start at 2.5/500 mg or 5/500 mg PO q12hr with food

Titrate to no more than 20/2000 mg per day in divided doses

Dosage Modifications

Hepatic impairment: Avoid use

Renal impairment

  • Obtain eGFR before starting metformin
  • eGFR <30 mL/min/1.73 m²: Contraindicated
  • eGFR 30-45 mL/min/1.73 m²: Not recommended to initiate treatment
  • Monitor eGFR at least annually or more often for those at risk for renal impairment (eg, elderly)
  • If eGFR falls below 45mL/min/1.73 m² while taking metformin, risks and benefits of continuing therapy should be evaluated
  • If eGFR falls below 30 mL/min/1.73 m²: while taking metformin, discontinue the drug

Not recommended

Conservative doses reommended; do not titrate to maximum dose

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Interactions

Interaction Checker

and glipizide/metformin

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    Interactions Found

    Contraindicated

      Serious - Use Alternative

        Significant - Monitor Closely

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            Warnings

            Black Box Warnings

            Discontinue metformin at the time of or before an iodinated contrast imaging procedure in patients with an eGFR between 30-60 mL/minute/1.73 m²; in patients with a history of liver disease, alcoholism, or heart failure; or in patients who will be administered intra-arterial iodinate contrast

            Lactic acidosis

            • Characterized by elevated blood lactate levels (>5 mmol/L)
            • Rare but serious complication that can occur because of metformin accumulation; increased risk with sepsis, dehydration, excess alcohol intake, hepatic insufficiency, renal impairment, and acute congestive heart failure
            • Subtle onset with nonspecific symptoms (eg, malaise, myalgias, respiratory distress, somnolence, nonspecific abdominal distress)
            • Monitor lab for decreased serum pH, increased anion gap, and elevated blood lactate If suspected, discontinue drug and hospitalize patient immediately
            • Metformin is highly dialyzable (clearance up to 170 mL/min under good hemodynamic conditions); prompt hemodialysis is recommended to correct the acidosis and to remove accumulated metformin

            Contraindications

            Severe renal disease: eGFR <30 ml/min/1.73 m²

            Metabolic acidosis, diabetic ketoacidosis

            Cautions

            Rare but serious lactic acidosis can occur due to accumulation of metformin

            Patients with glucose-6-phosphate dihydrogenase deficiency may be at risk of sulfonylurea induced hemolytic anemia

            Iodinated contrast imaging procedures

            • Discontinue metformin at the time of or before an iodinated contrast imaging procedure in patients with an eGFR between 30-60 mL/minute/1.73 m²; in patients with a history of liver disease, alcoholism, or heart failure; or in patients who will be administered intra-arterial iodinate contrast
            • Reevaluate eGFR 48 hr after the imaging procedure; restart metformin if renal function is stable

            See also individual drugs

            • glipizide
            • metformin
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            Pregnancy & Lactation

            Pregnancy Category: C

            Lactation: enters breast milk; not recommended

            Pregnancy Categories

            A:Generally acceptable. Controlled studies in pregnant women show no evidence of fetal risk.

            B:May be acceptable. Either animal studies show no risk but human studies not available or animal studies showed minor risks and human studies done and showed no risk.

            C:Use with caution if benefits outweigh risks. Animal studies show risk and human studies not available or neither animal nor human studies done.

            D:Use in LIFE-THREATENING emergencies when no safer drug available. Positive evidence of human fetal risk.

            X:Do not use in pregnancy. Risks involved outweigh potential benefits. Safer alternatives exist.

            NA:Information not available.

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            Formulary

            FormularyPatient Discounts

            Adding plans allows you to compare formulary status to other drugs in the same class.

            To view formulary information first create a list of plans. Your list will be saved and can be edited at any time.

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            • View the formulary and any restrictions for each plan.
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            • Compare formulary status to other drugs in the same class.
            • Access your plan list on any device – mobile or desktop.

            The above information is provided for general informational and educational purposes only. Individual plans may vary and formulary information changes. Contact the applicable plan provider for the most current information.

            Tier Description
            1 This drug is available at the lowest co-pay. Most commonly, these are generic drugs.
            2 This drug is available at a middle level co-pay. Most commonly, these are "preferred" (on formulary) brand drugs.
            3 This drug is available at a higher level co-pay. Most commonly, these are "non-preferred" brand drugs.
            4 This drug is available at a higher level co-pay. Most commonly, these are "non-preferred" brand drugs or specialty prescription products.
            5 This drug is available at a higher level co-pay. Most commonly, these are "non-preferred" brand drugs or specialty prescription products.
            6 This drug is available at a higher level co-pay. Most commonly, these are "non-preferred" brand drugs or specialty prescription products.
            NC NOT COVERED – Drugs that are not covered by the plan.
            Code Definition
            PA Prior Authorization
            Drugs that require prior authorization. This restriction requires that specific clinical criteria be met prior to the approval of the prescription.
            QL Quantity Limits
            Drugs that have quantity limits associated with each prescription. This restriction typically limits the quantity of the drug that will be covered.
            ST Step Therapy
            Drugs that have step therapy associated with each prescription. This restriction typically requires that certain criteria be met prior to approval for the prescription.
            OR Other Restrictions
            Drugs that have restrictions other than prior authorization, quantity limits, and step therapy associated with each prescription.
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