Drug Guide
Remdesivir
Classification
Therapeutic: Antiviral
Pharmacological: Nucleoside analog prodrug
FDA Approved Indications
- Treatment of COVID-19 in hospitalized patients requiring supplemental oxygen
Mechanism of Action
Remdesivir inhibits viral RNA-dependent RNA polymerase, thereby preventing viral replication.
Dosage and Administration
Adult: 200 mg IV on day 1, then 100 mg IV daily for 5-10 days, depending on clinical response
Pediatric: Safety and efficacy not established for pediatric patients; use with caution under clinical trial or hospital protocols
Geriatric: Adjustments not specifically required but monitor for renal and hepatic function
Renal Impairment: Use with caution; dose adjustment may be necessary for severe impairment
Hepatic Impairment: Use with caution; monitor liver function; avoid in patients with ALT levels >5 times the upper limit of normal
Pharmacokinetics
Absorption: Administered intravenously, not absorbed orally
Distribution: Wide tissue distribution, including lungs
Metabolism: Metabolized by hydrolysis and potentially cytochrome P450 enzymes
Excretion: Primarily via urine in the form of metabolites
Half Life: Approximately 11 hours in plasma
Contraindications
- Hypersensitivity to remdesivir or any component of the formulation
Precautions
- Liver enzyme elevation, renal impairment, pregnancy, breastfeeding
Adverse Reactions - Common
- Elevated liver enzymes (Common)
- Nausea (Common)
- Headache (Common)
Adverse Reactions - Serious
- Allergic reactions including hypersensitivity and anaphylaxis (Rare)
- Severe renal impairment (Rare)
Drug-Drug Interactions
- Certain oral anticoagulants may have altered effect
Drug-Food Interactions
N/ADrug-Herb Interactions
N/ANursing Implications
Assessment: Monitor renal and hepatic function before and during therapy; assess for signs of hypersensitivity
Diagnoses:
- Risk for hepatic injury
- Risk for renal impairment
Implementation: Administer IV infusion with appropriate monitoring; support as needed
Evaluation: Assess for clinical improvement of COVID-19 symptoms; monitor lab values regularly
Patient/Family Teaching
- Inform about potential side effects such as liver enzyme elevation
- Report any allergic reactions immediately
- Explain the importance of adherence to the prescribed duration
Special Considerations
Black Box Warnings:
- Potential for liver injury, including hepatic failure
- Use with caution in renal impairment
Genetic Factors: N/A
Lab Test Interference: May elevate liver function tests (ALT, AST) temporarily
Overdose Management
Signs/Symptoms: Potential hepatic toxicity, renal impairment
Treatment: Supportive care, monitor organ function, no specific antidote
Storage and Handling
Storage: Store at 2°C to 8°C (36°F to 46°F), in original container
Stability: Stable under recommended storage conditions for the duration of the beyond-use date