- Necon 10/11 (norethindrone and ethinyl estradiol), a biphasic birth control pill (generic for Ortho-Novum® 10/11)
- Necon 7/7/7 (norethindrone and ethinyl estradiol), a triphasic birth control pill (generic for Ortho-Novum 7/7/7)
- Necon 0.5/35 (norethindrone and ethinyl estradiol), a monophasic birth control pill (generic for Modicon®)
- Necon 1/35 (norethindrone and ethinyl estradiol), a monophasic birth control pill (generic for Ortho-Novum 1/35)
- Necon 1/50 (norethindrone and mestranol), a monophasic pill with a high dose of estrogen (generic for Ortho-Novum 1/50).
"Monophasic" means that there is only one dose of hormones throughout the pack. "Biphasic" means that there are two different phases, with two different doses of hormones, in the pack. "Triphasic" means that there are three different phases, with three different hormone doses, in each pack.