Your oral contraceptives should be store in a dry place with a controlled temperature, away from any sources of moisture, light, pets, and children. You should also read the pamphlet in the package of your birth control for any specific instructions regarding temperature or humidity levels for storage.
Birth control can handle higher or lower temperatures for short periods but should not be exposed to temperatures below 59 F (15 C) or above 86 F (30 C) for an extended period of time. If you store it at a much hotter or colder temperature than that range, your pills theoretically could lose their potency. Since oral contraceptives are hormone-based, they can be affected by temperature fluctuation.
Oral contraceptives are known also as the Pill, OCs, BCs, BC tablets, or birth control pills. This medicine usually contains two types of hormones, estrogens and progestins and, when taken properly, prevents pregnancy. It works by stopping a woman’s egg from fully developing each month. The egg can no longer accept a sperm and fertilization is prevented. Although oral contraceptives have other effects that help prevent a pregnancy from occurring, this is the main action.