How to store nebido vial

Hey guys , im new to TRT, and need advise on how to store my nebido vial....so far I've used my common sense to spray the rubber stopper and vial with isopropyl alcohol, I then proceeded to spray inside the nebido box where I put the vial back in and placed it in the fridge.....will this be safe for reuse? Im worried because the medical pamphlet for the nebido says the vial is for a single time use, but i know guys on test e and c usually keep reusing their vials, but those are maybe different from the nebido vial?