How to Calculate Famotidine 40 mg / 5 mL Dose

This calculator determines the Famotidine dose for treating acid-related conditions, using a concentration of Famotidine 40 mg / 5 mL, based on the patient’s weight and dosage frequency:

Dose in mL and mg (based on Famotidine component):

Where:

• Patient's Weight: Enter the patient’s weight in kilograms (kg) or pounds (lb) using the dropdown, with precision up to 0.001 units.
• Dosage Frequency: Select 0.5 mg/kg/dose PO BID or doses up to 1 mg/kg/dose PO BID from the dropdown.
• Concentration: Famotidine 40 mg / 5 mL (8 mg/mL).

Administer as prescribed for acid-related conditions. ⚠️ Always consult a healthcare provider.

Using the Famotidine 40 mg / 5 mL Dosage Calculator

Enter the patient’s weight in kilograms (kg) or pounds (lb) with precision up to 0.001 units, select the weight unit from the dropdown, choose the dosage frequency (0.5 mg/kg/dose PO BID or doses up to 1 mg/kg/dose PO BID) from the dropdown, and click "Calculate." The calculator provides the dose in mL and mg for pediatric patients (≥ 3 months) and adults.

Example: Weight: 25 kg, 0.5 mg/kg/dose PO BID:

Pediatric ≥ 3 months:
1.6 ml (13 mg) PO BID

Adult Dose:
20 to 40 mg po once to twice daily

Calculations must be re-checked and should not be used alone...
            

Consult a healthcare provider before administering.

Frequently Asked Questions (FAQ)

1. What is Famotidine used for?

Famotidine (Pepcid) is used to treat ulcers, gastroesophageal reflux disease (GERD), and other acid-related conditions.

2. How often is this given?

Pediatric (≥ 3 months): 0.5 mg/kg/dose PO BID or doses up to 1 mg/kg/dose PO BID have been reported. Adults: 20 to 40 mg po once to twice daily.

3. Can this be used for infants under 3 months?

Consult a doctor, as Famotidine is not typically recommended for infants under 3 months without medical supervision.

4. What’s the adult dose?

20 to 40 mg po once to twice daily.