Prescription discount cards are available through a variety of avenues, but are available online at sites such as GoodRx.com, BlinkHealth.com or LowestMed.com (RetailMeNot Rx Saver). Prescription discount programs tend to focus on certain segments of the drug market, such as generics or specialty drugs. GuideStone suggests doing some research before choosing a prescription discount program to find out which program is right for you.