Use famotidine exactly as directed on the label, or as prescribed by your doctor.
Famotidine oral is taken by mouth.
Famotidine injection is given as an infusion into a vein. A healthcare provider will give you this injection if you are unable to take the medicine by mouth.
You may take famotidine oral with or without food.
Shake the bottle of Pepcid suspension (liquid) vigorously for 5 to 10 seconds prior to each use. Measure the liquid medicine carefully. Use the dosing syringe provided, or use a medicine dose-measuring device (not a kitchen spoon).
Most ulcers heal within 4 weeks of treatment, but it may take up to 8 weeks of using this medicine before your ulcer heals. Keep using the medication as directed.
Call your doctor if the condition you are treating with this medicine does not improve, or if it gets worse while using this medicine.
Famotidine may be only part of a complete program of treatment that also includes changes in diet or lifestyle habits. Follow all instructions of your doctor or dietitian.
Store at room temperature away from moisture, heat, and light. Do not allow the liquid medicine to freeze.
Throw away any unused liquid that is older than 30 days.
 Detailed Famotidine dosage information
What happens if I miss a dose?
Take the medicine as soon as you can, but skip the missed dose if it is almost time for your next dose. Do not take two doses at one time.
What happens if I overdose?
Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.
