Antacids start neutralizing acid in seconds and work for 20-30 minutes per dose; they may last up to 3 hours if taken on a full stomach.
PPIs are not indicated for immediate relief. They may take 1-4 days to become fully effective and require a daily dosing regimen.
* Based on 9-hour acid control studies during the day and 12-hour acid control studies during the night. Acid control does not imply symptom relief.
† PEPCID COMPLETE® starts to neutralize acid in seconds. PEPCID AC® starts to relieve heartburn in 15 to 30 minutes.
‡ Maximum Strength PEPCID AC® prevents heartburn if taken 10 to 60 minutes before a meal. Original Strength PEPCID AC® prevents heartburn if taken 15 to 60 minutes before a meal.