Drug Guide
Insulin Lispro
Classification
Therapeutic: Antidiabetic agent
Pharmacological: Rapid-acting insulin
FDA Approved Indications
- Management of blood glucose levels in patients with diabetes mellitus
Mechanism of Action
Insulin Lispro is a rapid-acting insulin analog that mimics endogenous insulin response to a meal, facilitating glucose uptake into cells and inhibiting hepatic glucose production.
Dosage and Administration
Adult: Dosage individualized based on patient's blood glucose levels; administered subcutaneously within 15 minutes before or immediately after meals.
Pediatric: Dosing varies; usually administered subcutaneously before meals; consult specific pediatric guidelines.
Geriatric: Initiate at lower doses with careful titration due to increased risk of hypoglycemia.
Renal Impairment: Dose adjustment may be necessary; monitor closely.
Hepatic Impairment: No specific adjustments; use with caution.
Pharmacokinetics
Absorption: Rapid absorption following subcutaneous injection, with onset within 15 minutes.
Distribution: Distributes broadly in body tissues.
Metabolism: Metabolized primarily in the liver and kidneys.
Excretion: Excreted as metabolites mainly via renal pathways.
Half Life: Approximately 1 hour.
Contraindications
- Hypersensitivity to insulin lispro or any excipients in the formulation
Precautions
- Risk of hypoglycemia
- Use with caution in patients with renal or hepatic impairment
- Monitor for allergic reactions; lipodystrophy at injection sites
Adverse Reactions - Common
- Hypoglycemia (Common)
- Injection site reactions (Less common)
Adverse Reactions - Serious
- Severe hypoglycemia leading to coma or death (Rare)
- Anaphylaxis (Rare)
Drug-Drug Interactions
- Other antidiabetic agents (risk of hypoglycemia)
- Beta-blockers (may mask hypoglycemia symptoms)
Drug-Food Interactions
N/ADrug-Herb Interactions
N/ANursing Implications
Assessment: Monitor blood glucose levels closely; assess for signs of hypoglycemia and hyperglycemia.
Diagnoses:
- Risk for unstable blood glucose levels
- Risk for hypoglycemia
Implementation: Administer as prescribed; educate patient on injection technique and recognition of hypoglycemia.
Evaluation: Effectiveness assessed via blood glucose monitoring and patient symptom report.
Patient/Family Teaching
- Never share insulin syringes or pens
- Recognize symptoms of hypoglycemia and hyperglycemia
- Administer insulin injections as instructed
- Maintain proper storage of insulin
- Have a source of fast-acting carbohydrate available
Special Considerations
Black Box Warnings:
- Hypoglycemia is the most common adverse effect.
Genetic Factors: No specific genetic considerations
Lab Test Interference: May interfere with some laboratory blood glucose tests.
Overdose Management
Signs/Symptoms: Severe hypoglycemia: sweating, trembling, weakness, altered mental status, seizures.
Treatment: Administer fast-acting carbohydrate, glucagon, or intravenous glucose as per severity.
Storage and Handling
Storage: Unopened vials or pens stored in the refrigerator (36°F to 46°F); opened vials or pens can be kept at room temperature up to 28 days.
Stability: Stable under recommended storage conditions for the specified periods.