A composition for sustained release comprises a carrier material containing a non-polymeric, non-water soluble liquid material having a viscosity of at least 5,000 cP at 37° C. that does not crytallize neat under ambient physiological conditions, a multivalent metal cation, and growth hormone....http://www.google.de/patents/US6992065?utm_source=gb-gplus-sharePatent US6992065 - Sustained release formulations
