Of course its safe
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The sust 250 I have is the same my pharmacist sells. He even helped me crack my first amp. With the tests involved and costs, not to mention im certain my test levels are/were normal... and from what Ive read unless you have a really 'easy' doctor, you're almost fighting for it.
Personally for this guy though, that shouldnt be his main issue. Simply he does not have the training nor diet experience to gain full advantage from gear. What he gains from gear he can gain naturally (of course it will take longer OP) and then if and when he decides to step into the dark side he will be far bigger.