Question

An effective antacids contain​

Answer 1

Most antacids contain at least one of these key ingredients: calcium carbonate, magnesium hydroxide, aluminum hydroxide and/or sodium bicarbonate. And while all these ingredients work to neutralize your stomach's acid, it's important to know more about them so you can choose the one that's right for you.

I hope it helps

Answer 2

$\huge\frak\red{AnSwer}$

And having some food in your stomach may actually prolong an antacid's effect. Most antacids contain at least one of these key ingredients: calcium carbonate, magnesium hydroxide, aluminum hydroxide and/or sodium bicarbonate.