-dimercaprol
-edetate calcium disodium, also known as calcium EDTA

They need to know if you have any of these conditions:

-kidney disease
-liver disease
-low blood counts, like low white cell, platelet, or red cell counts
-an unusual or allergic reaction to succimer, other medicines, foods, dyes, or preservatives
-pregnant or trying to get pregnant
-breast-feeding

Tell your doctor or healthcare professional if your symptoms do not start to get better or if they get worse. You will need regular blood work done while you are taking this medicine.

Check with your doctor or health care professional if you get an attack of severe diarrhea, nausea and vomiting, or if you sweat a lot. The loss of too much body fluid can make it dangerous for you to take this medicine.

You may get drowsy or dizzy. Do not drive, use machinery, or do anything that needs mental alertness until you know how this medicine affects you. Do not stand or sit up quickly, especially if you are an older patient. This reduces the risk of dizzy or fainting spells.

Keep out of the reach of children.

Store at room temperature between 15 and 25 degrees C (59 and 71 degrees F). Avoid exposure to heat. Throw away any unused medicine after the expiration date.