Centor (formerly Rexam) is the world’s largest supplier of regulatory compliant prescription containers for medication dispensing and can be found in over 65% of US Pharmacies. Manufactured domestically in Ohio their 1-Clic® and Screw-Loc® lines are universally recognized for their quality and are preferred by most vial filling robots. Centor's 1-Clic® vials are favored 2 to 1 over other packaging and are the only vials to have been commended for their ease of use by the National Arthritis Foundation.