It's that time again! Jim Cramer rang the lightning round bell, which means he gave his take on caller favorite stocks at rapid speed:
Opko Health: "Phil Frost [CEO] I think he's doing his thing. Ever since that acquisition the stock has done nothing, it's flatlined. I'm still with Phil."
AbbVie: "The company is doing everything right. I urge you to stick with it. I think it's terrific. I wouldn't touch a thing. I want you to be in it."
Cepheid: "This is precisely the kind of stock that's now working. They flicked the switch, I think you're OK."