Most of the drugs in the top 10 are already on the market, according to data from the online pharmacy market research company PharmacyTracker.
PharmacyTracker data indicates that, on average, nearly 40% of prescription drugs sold on the online market are already covered by a generic drug.
The data is based on an analysis of sales data from pharmacies and drug manufacturers and includes products in the list of more than 100 drugs that are commonly used in the U.S.
Pharmacist-prescribed drugs are the most common drugs prescribed by doctors.
The top 10 most popular prescription drugs are:Drugs on the list:Ketoconazole (sold as Metacor)Ketoracin (sold in oral formulations as Zyprexa)Efavirenz (sold under generic name Zyrtec)Tetrazolam (sold on the generic drug form as Nexium)Olanzapine (sold over the counter as Nuxivax)Naloxone (sold by the generic form Nexium V and sold in the US as Narcan)Amprenavir (sold at pharmacy counters in a generic form as Avandia)RitonavirRifampicin (Sold over the counters as Rapamort)The list of the top 15 most popular generic drugs also includes drugs that have already been approved by the Food and Drug Administration (FDA).
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