Acyclovir

🧮 Dose calculator

Chickenpox (varicella) · Regimen source: FDA Acyclovir susp · Dosage and Administration

• • Start at the earliest sign; no efficacy data if started after 24 hours. FDA Acyclovir susp · Dosage and Administration

Enter age and weight.

👥 Special populations

• 🤰 PregnancyUse with caution

  Label states no clear risk or has limited data; use only if needed, under medical advice. FDA Acyclovir injection · Pregnancy

  “Teratogenic Effects Pregnancy Category B Acyclovir administered during organogenesis was not teratogenic in the mouse (450 mg/kg/day, PO), rabbit (50 mg/kg/day, SC and IV), or rat (50 mg/kg/day, SC).”

• 🤱 BreastfeedingUse with caution

  Label: use with caution while breastfeeding; see the label text. FDA Acyclovir injection · Nursing Mothers

  “Acyclovir concentrations have been documented in breast milk in two women following oral administration of acyclovir and ranged from 0.6 to 4.1 times corresponding plasma levels.”

• 👶 ChildrenUse with caution

  The label has conditions, age limits or notes for children; the label sentence is quoted below. FDA Acyclovir injection · Pediatric Use

  “See DOSAGE AND ADMINISTRATION .”

• 👴 Older adultsUse with caution

  Label: use with caution in older adults, usually starting at the low end of the dose range. FDA Acyclovir injection · Geriatric Use

  “In general, dose selection for an elderly patient should be cautious, reflecting the greater frequency of decreased renal function, and of concomitant disease or other drug therapy.”

• ⚥ Females & males of reproductive potentialNo data

  The source for this drug has no section for this group.