Interactions are not expected.

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

-an unusual or allergic reaction to black widow spider antivenin, horse serum, 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.

Keep out of the reach of children.

This drug is given in a hospital or clinic and will not be stored at home.