Most exposures to black widow spider venom are accidental, but in a rare medical case, the exposure was intentional.

Calcium is available as either calcium chloride or calcium gluconate. Because of differences in the molecular weights of the chloride and gluconate components, 30 mL of 10% calcium gluconate is ...

Calcium gluconate contains 9% calcium, and one gram yields 4.5 mEq. This is similar to calcium citrate, in terms of absorption, but provides additional phosphate, which is also beneficial for bones.

Get medical attention. Flushing can be limited to five minutes if medical personnel are immediately available to administer sterile calcium gluconate (1%) solution (via continuous drip). Move to fresh ...