The use of doses significantly higher than recommended for your weight and your level is a problem. Not only do higher doses produce too much stress on the liver and kidneys, which can lead to damage, but higher doses are also less effective.
The aromatisation (conversion of steroids into oestrogen) and the suppression of the production of testosterone in the body are more significant when higher doses are used. The body cannot use more than a limited amount of synthetic steroid. It won’t be able to use the excess and typically it will be converted into oestrogens. Once a steroid receptor site (such as a skeletal muscle or secondary muscle) is “full”, increasing the dose of steroid will have no further beneficial effect.
It’s important to understand that common wisdom, understood by numerous competitive bodybuilders, athletes and top-models, (who may take as many as 50 tablets of D-Bol per day, and 2000mg of testosterone per week), is entirely flawed in regard to its use for developing a superior physique.