Investors shouldn't worry about FedEx's missed earnings, CNBC's Jim Cramer said Wednesday, citing changing shipping routes and the company's strong stock performance.
Still worried? Cramer has a prescription for that.
"You ever hear of Xanax?" Cramer said on "Squawk on the Street." "It's a franchise that could be unique to these hedge fund managers who are jittery about something like FedEx. Go take a Xanax."
(Read more: FedEx earnings fall short of expectations)