TORONTO - Lawyers appealing to Health Canada to loosen medical marijuana regulations say government pot can't match the effectiveness of strains available on the street.

Lawyer Alan Young says his clients should be able to pick their own growers rather than having to rely on the government's supply, which some users say makes them sick.

But government lawyer Christopher Leafloor says that argument doesn't stand up because Health Canada has new and improved strains of pot.

And he says most of those complaining about the government pot haven't tried the new stuff yet.

Currently, medical users can grow their own pot but growers can't supply the drug to more than one user at a time.

Lawyers wrapped up their arguments today in Federal Court and expect Judge Barry Strayer to make his decision in the coming months.