Cannabis consumers will be able to buy a maximum of 40 grammes each month from licensed pharmacies as long as they are Uruguayan residents over the age of 18 and registered on a government database that will monitor theur monthly purchases. When the law is implemented in 120 days. Uruguayans will be able to grow six marijuana plants in theri homes a year, or as much as 480 grammes, and from smoking clubs of 15 to 45 members that can grow up to 99 plants per year.