H-E-B. is a retailer with 300 stores located in Texas. The H-E-B Rx Rewards Program is available to everyone with a one time $5 enrollment fee. The generics offered are $5 for a 30-day and $9.99 for a 90-day supply. There are also certain prenatal vitamins offered for free. Read more information about the drugs covered and details of the H-E-B Rx Rewards Program here. To find if a specific drug is available at H-E-B or any other low cost generic program please use the Product Lookup tool.