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metformin

Biguanide
What it's for

Type 2 diabetes first-line

Nursing considerations
  • Held for contrast studies and significant renal impairment — lactic acidosis risk
  • GI upset is the classic start-up effect — take with food
  • Does not itself cause hypoglycemia
Key side effects
GI upsetB12 deficiency (long-term)Lactic acidosis (rare)
📈 Watch

Creatinine, glucose, hold around contrast

Source: Generic names only, per NCSBN convention. Primary sources: Lehne's Pharmacology for Nursing Care, 11th ed.; Davis's Drug Guide for Nurses. Educational reference — verify every medication decision against your facility's formulary, pharmacy, and the prescriber. Doses shown are typical adult references, not recommendations.Reference only — verify against your facility's policy.

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