- 
common 
- 
stretching = treatment 
- 
no evdience for magnesium 
or “anti-cramp” formulations
limited evidecne of nortrip, diltiazem, orphenadrine, verapamil or gaba may be used
Quinine
effective
- 
concernes re safety: fatal thrombocytopenia - 
idiosyncratic hypersensitivity 
- 
can occur at any time 
 
- 
- 
HUS 
- 
DIC 
- 
acute kidney injury 
- 
toxic at high doses