A pharmaceutical waste disposal assembly (1810) for disposing of sharps and one or more of fluid pharmaceutical waste and solid pharmaceutical waste includes a receiver assembly (1851) having a sharps receiver (1815), a waste receiver (1812), and a receiver retainer (1816). The sharps receiver (1815) receives sharps. The sharps receiver (1815) includes a sharps receiver body (1823) that defines a sharps region (1827C). The waste receiver (1812) receives one of fluid pharmaceutical waste and solid pharmaceutical waste. The waste receiver (1812) includes a waste receiver body (1819) that defines a waste region (1827A) that is independent of the sharps region (1827C). The receiver retainer (1816) receives the sharps receiver (1815) and the waste receiver (1812). The sharps receiver body (1823) and the waste receiver body (1819) are positioned substantially adjacent to one another within the receiver retainer (1816). The sharps receiver (1815) and the waste receiver (1812) are integrally formed as a unitary structure. Additionally, the sharps receiver (1815) and the waste receiver (1812) can be inserted into and/or removed from the receiver retainer (1816) together as an integrated unit.