Bismuth subsalicylate is an antacid and anti-diarrhea medication.

Bismuth subsalicylate is used to treat diarrhea, nausea, heartburn, indigestion, and upset stomach.

Bismuth subsalicylate may also be used for purposes not listed in this medication guide.

This medication should not be given to a child or teenager who has a fever, especially if the child also has flu symptoms or chicken pox. Salicylates can cause a serious and sometimes fatal condition called Reye's syndrome in children.

You should not use bismuth subsalicylate if you have a stomach ulcer, a recent history of stomach or intestinal bleeding, or if you are allergic to salicylates such as aspirin, Doan's Extra Strength, Salflex, Tricosal, and others.

Do not take more than 8 doses in one day (24 hours).

Bismuth subsalicylate can cause you to have a black or darkened tongue. This is a harmless side effect.

This medication can also cause unusual results with certain medical tests, thyroid scans, or stomach x-rays. Tell any doctor who treats you that you have recently taken bismuth subsalicylate.

This medication should not be given to a child or teenager who has a fever, especially if the child also has flu symptoms or chicken pox. Subsalicylate can cause a serious and sometimes fatal condition called Reye's syndrome in children.

You should not use bismuth subsalicylate if you are allergic to it, or if you have:

• a stomach ulcer;

• a recent history of stomach or intestinal bleeding; or

• if you are allergic to salicylates such as aspirin, Doan's Extra Strength, Salflex, Tricosal, and others.

Ask a doctor or pharmacist if it is safe for you to take this medicine if you have:

• fever;

• mucus in your stools;

• diabetes;

• arthritis; or

• gout.

Do not take bismuth subsalicylate without medical advice if you are pregnant.

Bismuth subsalicylate can pass into breast milk and may harm a nursing baby. Do not use this medication without medical advice if you are breast-feeding a baby.