Prescription medications from Amazon Pharmacy.AmazonAmazon Pharmacy's revenue may hit $2 billion this year, per Evercore's analysis.Interest in Amazon's online pharmacy service rose to 45% from 34% last year.The US prescription market is worth about $435 billion.Amazon's online pharmacy business is drawing significantly more customer interest now, and it could generate roughly $2 billion in revenue this year, according to financial firm Evercore.In a note published last week, Evercore analyst Mark Mahaney highlighted his firm's recent survey showing rising interest in and usage of Amazon Pharmacy.A record 45% of Amazon customers are now "extremely interested" or "very interested" in buying online medications from the company, up from just 34% last year and 14% in 2020.