Is JPC safe for Plecos?

[Dixie]

I think a new fish may have brought in gill flukes or some parasite. It was twitching it's head funny. A couple days later I saw another of my older fish do it and then most of them started flashing. When they started the flashing, I did my weekly 50% water change (even though it was a couple days early) ammonia & nititres were 0, nitrates almost 20. The water change didn't help with the flashing or twitching so I bought some Jungle Parasite Clear. I'm worried if it's safe for the Plecos as I was going to treat the whole tank. The ingredience are....
praziquantel, diflubenzuron, metronidazole, and acriflavine.

[Dixie]

Ok, in another forum I was told it shouldn't hurt the Plecos so yesterday I did another 50% water change, took the carbon cartridges out of the filters and put them down in the tank so they wouldn't loose their good bacteria, and added 5 JPC tablets dissolved in water. After 48 hrs I will do another partial water change and treat with another dose. I'll try to keep y'all updated so you can see how it turns out, if anyone is interested.