Short Description for this Prescription Medication that you can Buy from the Online Pharmacy: Triphasil contains a combination of hormones that is used to prevent ovulation (the release of an egg from an ovary). In order to buy the Triphasil birth control medication from the online pharmacy, simply choose the dose and quantity of pills for this prescription medicine that you would like to purchase. The pills contain a form of estrogen and a form of progesterone, which are both female hormones involved in conception. Be sure to read all of the information about Triphasil before ordering this drug for birth control.