All I know is that I had a shot of it once and it was amazing! It helped tremendously.

Once, daughter had to be taken to ER via ambulance from COSI in Cleveland. We were there on a field trip and she began having INTENSE cramps. They got worse and we took her to sick station (we were a few hours from home in a strange city). They called for an ambulance because they were really concerned for her.

The dr immediately ordered a shot and within about 15-20 mins, she was completely fine. She was about 17.

All good experiences here with the injections.

good luck!

KD