What Is Gp400

small round pill - marked gp400 on back

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I located the pill in description to be Magnesium oxide (400 mg).

Suspensions of magnesium hydroxide in water (milk of magnesia) are used as an antacid to neutralize stomach acid, and as a laxative.

To view information about this drug, please click on the link below...
https:/­/­rxchat.com/­wiki/­Magnesium+Hydroxide/­

If you have any other questions or concerns, please post back and I will be happy to assist you.

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