Of-late there has been a major increase in the number of websites selling prescription and over the counter drugs online. Most of these companies are fradulent and operate without proper licenses. There is no gurantee what kind of goods they might be selling. It could even be that these guys sell substandard or old medictaions that have by far exceeded their sell by date. To protect yourself from these fraudsters, make sure to check the websites for registration before making the purchase online. Here's how to identity registration information:
For UK residents: Check to see if the website is affiliated to Royal Pharmaceutical Society of Great Britain (RPSGB). Any website participating with the RPSGB will have a distinct logo representing the same on its frontpage/homepage. For instance, check this pharmacy uk and you will be able to find a green square logo on the left panel. Checking the logo will take you to a page that contains a link to the RPSGB page that has details about the pharmacist running the website and information about location of the pharmacy.
For US residents: Check to see if the pharmacy is licensed by the state board of pharmacy. You can check nabp.info to get a list of state boards of pharmacy. In-addition, check the frontpage of the website to see if the site has a VIPPS seal. VIPPS stands for Verified Internet Pharmacy Practice Sites and websites having this seal are 100% legitimate. After finding the seal click on the seal to check if the license is valid. The link should take you to the vipps.nabp.net website where you should be able to find a verification link.