Mayne Pharma Group Limited and Mithra Pharmaceuticals, SA announced the launch of HALOETTE (etonogestrel and ethinyl estradiol) a vaginal hormonal contraceptive ring into the US market. HALOETTE contraceptive is a generic version of NUVARING, a combined hormonal contraceptive flexible ring indicated for the prevention of pregnancy. Under the terms of the long-term license and supply agreement, Mayne Pharma will pay Mithra a milestone of EUR 1.6 million.