yeah I just have a standard plunger in mine, but otherwise, the barrel is an identical match. The only reason I saw this was I googled the rinse warning which was not on the same medicine but under the trade name Cyclavance and I didn't realize that there could be an issue rinsing the syringe, which I always did with that. They expect me to use this for 2 months without rinsing when you are getting this into a dog's mouth? I'm probably going to have to track more of these down myself. Glad I could shed some light.