The side effects associated with dianabol use will always magnify as the dosage is increased. The safest steroids you can take will be the injectables because they do not have to travel the same route through the organs and indigestive system like tablets do. When you think oral, think safety. Eat food when you take your tablets, drink plenty of water and dont be tempted to take more than what has been recommended for you. If you follow all the advice on keeping safe using dianabol then it will never be any more harmful to you than taking a regular dosage of paracetamol.
Lastly, all anabolic steroids are known to be suppressive to the HPTA (Hypothalamic Pituitary Testicular Axis), which results in a suppression and/or total shutdown of endogenous natural Testosterone production. This is one of the reasons why cycles must be kept as short as possible, as the longer a cycle is run the more difficult it is for one to restore their endogenous production of hormones. Dbol is very well known for its strong suppressive nature. Studies have been conducted on Dianabol’s suppressive nature in particular, and they have demonstrated that doses as low as 15mg per day for 8 weeks caused mean plasma Testosterone levels to decline by 69%  . It is very important that following any cycle, the user engages in a Post Cycle Therapy (PCT) program, which includes the use of Testosterone-stimulating compounds (such as Nolvadex ) for a 4-6 week period in order to ensure full restoration of the body’s endogenous production of Testosterone and related hormones. Without a proper PCT program, the user risks damaging and/or shutting down his HPTA for the rest of his life.