Is it safe to inject testosterone cypionate while going through treatment?

Maybe (not) . . .: Treatment for what? You didn't mention what "treatment" so I can't really tell you whether injectable T (or any other form) is "safe". Check out http://www.drugs.com/drug_interactions.php which allows you to search for drug-drug interactions so you can determine whether it's worth risk to you or not. Better yet, ask prescribing physician if it's safe! S/he needs to know everything about you b4 Rx.

Please clarify: Hi. Going through treatment for what? What is the treatment? If you can clarify what you're talking about, maybe we can help. Good luck!