If you are in Canada, feel free to light up because recreational cannabis is officially legal in the U.S.'s neighbor to the north. 

Recreational cannabis became legal in Canada Wednesday, Oct. 17, opening up a huge market for cannabis companies looking to sell their products. 

During the run-up to legalization, pot stocks have been some of the hottest on the market. But Wednesday's coronation has been met with a sharp pullback.

Tilray Inc. (TLRY - Get Report) retreated 6.4%. 

Canopy Growth Corp. (CGC - Get Report) fell 4.68%.

India Globalization Capital Inc. (IGC - Get Report) dropped 8.6%. 

DAVIDsTEA Inc. (DTEA - Get Report) declined 2.1%.

TheStreet's Jim Cramer recently sat down with Canopy Growth CEO Bruce Linton and Constellation Brands Inc. (STZ - Get Report) Chief Operating Officer Bill Newlands. Hear what they had to tell Jim about the cannabis business here