http://nfs.sparknotes.com/
This is the best Shakespeare site online, I believe. Find the play you want, then the act and scene. You'll find modern-day English on the right side of the page.
Read carefully.
In act 4 does the Friar give Juliet a drug or a potion.
2 answers
He gives her a potion, we know this because he has a specialty in herbs and plants and in his previous soliloquy he tells us he knows what plants can stop the heart and such.
Also, in act 5 - scene 3 line 244 he says he gave her a sleeping potion. :)
Also, in act 5 - scene 3 line 244 he says he gave her a sleeping potion. :)