Features of a legitimate online pharmacy:
(1) is located in the United States (or country in which you live)
(2) is licensed by the appropriate State Board of Pharmacy (or comparable agency)
(3) requires a legitimate prescription
(4) has a licensed pharmacist available to answer any questions
(5) has a mechanism for handling any problems that might arise
(6) has privacy and security policies that are enforced
(7) maintains the privacy of confidential personal information
Other features:
(1) listed with the VIPPS (Verified Internet Pharmacy Practice Site) or similar authorizing program
(2) do not sell cure-alls or nostrums
(3) does not make claims that cannot be substantiated