Is this safe for an enema?

Hey there,

I know I just posted (and I probably will post even more), but I have so many questions, and you all are so helpful. The latest one: I have a tincture called ParaFree that I've been taking orally for five days, and I was wondering if I could add it to an enema. I know Clarkia can be turned into an enema, but this stuff has some different ingredients along with the usual Black-Walnut , worm wood, and cloves.

-Quassia inner wood
-Male fern root

Extracted with 65% grain alcohol.

Is this safe for an enema? If so, how much would you suggest? The bottle doesn't say anything about concentrations, but it does say to take 40 drops three times a day. I've heard different things about male fern root, like it could be dangerous, so I'm wary of putting it in an enema.

Other questions:
-Why do you think I feel about 300% worse at night? Is this when parasites wake up, or it is just when my body is most worn out?
-Is there any single best way to kill tapeworms?
-how long should I be taking this herbal tincture to ensure complete elimination?