To further answer the question, Ostarine is slightly suppressive, meaning it inhibits optimal testosterone production slightly while on it. But, if you planned on running it into an oral cycle, then it shouldn't matter since you would have to PCT after the oral cycle to recover HPTA/Testosterone production anyway.
So another answer is yes, you could run osta rx for 6-8 weeks right before starting your oral cycle, or you can run it into your oral cycle, or you can run it with any oral cycle (together) entirely up to you