This is how it increases strength and endurance. We can not say for sure, but perhaps the injuries were partially the result of not enough water intake during those initial loading phases and the continuing maintenance phase. The taking of creatine along with other sports supplements is known as stacking. Although there has been no published reports of the benefits associated with this practice, it is common. No reports have surfaced that show that creatine should not be taken with certain ingredients.
Some athletes report increased results when taking vanadyl sulfate with creatine.
This would be expected due to the insulin-like effect of vanadium and the need for more glucose entry into the muscles with creatine. Glutamine is another nutrient that has shown promise. Again, no reports have been published that show the expected increase in results, although apparently many athletes are achieving increased strength by stacking. However, the use of hormones always has to be monitored. Continuous use of these hormones could result in androgenic effects leading to pimples, irritability, aggressiveness, and facial hair growth in women.