Amazon, the online retail giant, has announced the launch of a service called RxPass to provide cheap generic prescription drugs to its US Prime members, signalling its move further into the healthcare market. 12RxPass is a new benefit offered through Amazon Pharmacy, which is available to US Amazon Prime members for $5 a month on top of their Amazon Prime membership fee. 12RxPass is a new benefit offered through Amazon Pharmacy, which is available to US Amazon Prime members for $5 a month on top of their Amazon Prime membership fee