Peterson surveyed 33 Cyber pharmacy websites in the United States and found that most pharmacies provided all of the drugs in the survey. Patients were required to provide their own prescription at 88% of the sites, and 75% of sites used mail or fax to verify prescription integrity. More than 50% of sites had privacy policies posted and 64% used cookies.

Peterson AM. A survey of selected Internet pharmacies in the United States. J Am Pharm Assoc (Wash) 2001 Mar-Apr;41(2):205-12

Bonakdar [5] studied websites offering cancer cure and concluded that a number of websites offered cancer cure through herbal medication with little regard for current regulations.

Bonakdar RA. Herbal cancer cures on the Web: noncompliance with The Dietary Supplement Health and Education Act. Fam Med 2002 Jul-Aug;34(7):522-7

Scaria studied websites offering sale of Viagra and analysed the information provided to potential consumers regarding contraindications and found that though most of the websites provided information on contraindications, they were often incomplete.

Scaria V. Buying Sildenafil Citrate Online: are prospective buyers informed of contraindications? Calicut Medical Journal 2003;1(1):e4
http://calicutmedicaljournal.org/2003;1(1)e4.htm

Bessel et al surveyed Internet websites selling medicines online, and found that a variety of malpractices like selling prescription-only medicines without one were rampant.