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Valsartan

VALSARTAN

Manufacturer: A-S Medication Solutions

Score: 144.0

Quick Summary

Valsartan is an angiotensin II receptor blocker (ARB) used to treat hypertension, heart failure, and to reduce cardiovascular mortality in patients with left ventricular failure or left ventricular dysfunction following myocardial infarction. It works by blocking the action of angiotensin II, a potent vasoconstrictor, which leads to a decrease in blood pressure and a reduction in the risk of cardiovascular events. The recommended starting dose of valsartan is 80 mg or 160 mg once daily, with a maximum dose of 320 mg daily. Valsartan is generally well-tolerated, but can cause adverse reactions such as headache, dizziness, and hyperkalemia. It is contraindicated in patients with known hypersensitivity to any component of the drug and should be used with caution in patients with renal or hepatic impairment, as well as in pregnant or nursing women.

Key Clinical Findings and Indications

  • Treatment of hypertension to lower blood pressure
  • Treatment of heart failure (NYHA class II-IV)
  • Reduction of cardiovascular mortality in patients with left ventricular failure or left ventricular dysfunction following myocardial infarction

Important Safety Information

Warning

When pregnancy is detected, discontinue valsartan as soon as possible. Drugs that act directly on the renin-angiotensin system can cause injury and death to the developing fetus.

Contraindications

  • Known hypersensitivity to any component of the drug
  • Do not coadminister aliskiren with valsartan in patients with diabetes

Adverse Reactions

  • Headache
  • Dizziness
  • Viral infection
  • Fatigue
  • Abdominal pain
  • Hyperkalemia

Dosing Recommendations

General Guidance

No initial dosage adjustment is required for elderly patients, for patients with mild or moderate renal impairment, or for patients with mild or moderate liver insufficiency. Care should be exercised with dosing of valsartan in patients with hepatic or severe renal impairment.

Adult Hypertension

Adult Dose

80 mg or 160 mg once daily, with a maximum dose of 320 mg daily

Pediatric Dose

1.3 mg/kg once daily (up to 40 mg total) for children 6-16 years old

Heart Failure

Adult Dose

40 mg twice daily, with a maximum dose of 160 mg twice daily

Pediatric Dose

Not recommended for pediatric patients under 6 years old

Post-Myocardial Infarction

Adult Dose

20 mg twice daily, with a maximum dose of 160 mg twice daily

Pediatric Dose

Not recommended for pediatric patients under 6 years old

Special Population Considerations

Pregnancy

  • Use of drugs that act on the renin-angiotensin system during the second and third trimesters of pregnancy reduces fetal renal function and increases fetal and neonatal morbidity and death
  • Discontinue valsartan as soon as possible when pregnancy is detected

Nursing Mothers

  • It is not known whether valsartan is excreted in human milk
  • A decision should be made whether to discontinue nursing or discontinue the drug, taking into account the importance of the drug to the mother

Pediatric Use

  • Valsartan is not recommended for pediatric patients under 6 years old due to safety findings for which a relationship to treatment could not be excluded
  • No data are available in pediatric patients either undergoing dialysis or with a glomerular filtration rate <30 mL/min/1.73 m^2

Geriatric Use

  • No overall difference in the efficacy or safety of valsartan was observed in patients ≥65 years old
  • Greater sensitivity of some older individuals cannot be ruled out