Creatinol O-Phosphate (COP) is a synthetic analogue of creatine that was created as a cardioprotective drug, and it appears to be helpful against arrythmia and aid the integrity of cardiac tissue following injections of up to three grams. Via this method of administration and dosage, it appears to be safe as well as effective.
A lack of information exists on COP oral ingestion and whether the benefits translate from oral to injections. Additionally, all research appears to be a few decades old and has since just ceased for unknown reasons; a weird thing for such a promising compound (unless another cardioprotective agent was deemed safer and more effective, making injections of COP for clinical usage not needed to be researched anymore).
Due to the lack of pharmacokinetic data, it is hard to ascertain the benefits associated with COP ingestion. If absorbed, it will be cardioprotective and safe. Optimal dosing regimen is not known at this time due to no bioavailability data.
For all intents and purposes, COP supplementation should be viewed as completely different as creatine supplementation. Even after COP loses the phosphorus group, it metabolizes into creatinol and not creatine.