Zafirlukast

🧮 Dose calculator

Asthma and chronic lung disease (reversible airflow obstruction) · Regimen source: FDA Zafirlukast · Dosage and Administration

• • At least 1 h before or 2 h after meals. Not for acute bronchospasm. FDA Zafirlukast · Dosage and Administration

Enter age (weight is optional for this regimen).

👥 Special populations

• 🤰 PregnancyUse with caution

  Label states no clear risk or has limited data; use only if needed, under medical advice. FDA Zafirlukast · Precautions/Warnings – Pregnancy

  “Category B: No teratogenicity was observed at oral doses up to 1600 mg/kg/day in mice (approximately 160 times the maximum recommended daily oral dose in adults on a mg/m 2 basis), up to 2000 mg/kg/day in rats (approximately 410 times the maximum recommended daily oral dose in adults on a mg/m 2 basis) and up to 2000 …”

• 🤱 BreastfeedingUse with caution

  Label: use with caution while breastfeeding; see the label text. FDA Zafirlukast · Precautions/Warnings – Nursing Mothers

  “Zafirlukast is excreted in breast milk.”

• 👶 ChildrenUse with caution

  The label has conditions, age limits or notes for children; the label sentence is quoted below. FDA Zafirlukast · Precautions/Warnings – Pediatric Use

  “The safety and effectiveness of zafirlukast for pediatric patients less than 5 years of age has not been established.”

• 👴 Older adultsUse with caution

  Label: use with caution in older adults, usually starting at the low end of the dose range. FDA Zafirlukast · Precautions/Warnings – Geriatric Use

  “Based on cross-study comparison, the clearance of zafirlukast is reduced in patients 65 years of age and older such that C max and AUC are approximately 2- to 3-fold greater than those of younger patients (see”

• ⚥ Females & males of reproductive potentialNo data

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