Maine drug agents arrested two Biddeford women on charges of selling heroin and crack cocaine.Police arrested Sarah Berthiaume, 36, and Patricia Fancuilli, 44.Both lived at 43 Wentworth Street, police said.Police said they made several undercover drug purchases from the apartment.Police also said they found cutting agents and grinders used to mix illegal drugs with other substances.Agents said they seized 27 grams of crack cocaine and 15 grams of suspected heroin from the apartment.Berthiaume was arrested on charges of unlawful trafficking in schedule drugs.Fancuilli was arrested on charges of aggravated trafficking in schedule drugs.Police said it was the second time in six months drug agents had made arrests related to drug trafficking at the address.