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Short answer How long Aluminum Hydroxide and Magnesium Hydroxide takes to work Common questions Related questions SourcesAluminum hydroxide and magnesium hydroxide usually starts working within about 5 minutes, because it neutralizes acid that is already sitting in your stomach rather than shutting off acid production.
How long the relief lasts depends mostly on timing: on an empty stomach the dose leaves the stomach quickly and may last only 20 to 60 minutes, while a dose taken about an hour after eating can last up to roughly 3 hours. The liquid form generally coats the stomach faster than tablets, and tablets need to be chewed completely rather than swallowed whole. This medicine treats symptoms as they happen, so it does not build up over days the way an acid reducer like famotidine or omeprazole does. If you are reaching for it most days for more than 2 weeks, that pattern is worth a conversation with a clinician instead of a bigger dose.
How long Aluminum Hydroxide and Magnesium Hydroxide takes to work
Common questions
How long does Aluminum Hydroxide and Magnesium Hydroxide take to work?
Aluminum hydroxide with magnesium hydroxide is a fast-acting antacid. It neutralizes stomach acid on contact, so most people feel heartburn ease within about 5 minutes of a dose. Relief usually lasts 20 to 60 minutes on an empty stomach, and up to about 3 hours when taken after a meal, since food keeps the antacid in the stomach longer. Shake liquid forms well, and chew tablets fully before swallowing. If you need it most days for more than 2 weeks, or you have trouble swallowing, vomiting, black or bloody stools, chest pain, or unexplained weight loss, talk with a clinician rather than continuing to self-treat.