CINCINNATI--(BUSINESS WIRE)--Prasco Laboratories, a Cincinnati-based pharmaceutical company, announced today it has entered into a distribution and supply agreement with Graceway Pharmaceuticals, LLC. for an authorized generic version of MetroGel-Vaginal Gel (metronidazole vaginal gel, 0.75%). Prasco authorized generics are generic products manufactured by brand companies and marketed as generics under the Prasco label.