The difference that one can find between a brand medication and a generic lies in the name, shape and price.
A lot of people erroneously believe that generic medications need more time to work, this is not true.
If you know what product you need just use the search engine at the main page or see full products list, you may find needed product at the left side of the main page at the corresponding section as well. When the product is found just add it to the cart and follow further instructions.