I work in the health field (Lithotripsy specialist). I would be concerned about kidney ailments ie. kidney stones with creatine suppliments
Other kidney ailments may also result.
I found this caution from a creatine manufacturer, If the manufacturer is admitting to these side effects, in view of your current medical condition I would exercise extreme caution. See a DR. before using any suppliments.
Creatine side effects and cautionsNausea, stomach upset, dizziness or weakness, loose stools, diarrhea, and weight gain are the most common creatine side effects, and generally occur with creatine dosages greater than 5 grams a day. Another creatime side effect sometimes reported is muscle cramping. Strains and sprains can occur (perhaps even muscle tears?) when individuals over enthusiastically and rapidly increase their workout regimen before their tendons and ligaments have adapted to the increase in muscle size and power.
Long-term side effects of daily creatine monohydrate ingestion, especially in high dosages, are currently not known. There is a possibility that excess creatine can put stress on the kidneys and liver. Creatine converts into creatinine which, in high dosages, could act as a toxin. Whether there is a potential for increasing the risk of cancer with regular high dose use is currently not known. I discourage the regular, high dose use of creatine unless frequent breaks are taken. Individuals with kidney disease should not use creatine.
