Pharmaceutical Product Drop Shipping Pharmaceutical Product Drop shipping is a supply chain management technique in which the retailer does not keep goods in stock, but instead transfers customer orders and shipment details to either the manufacturer or a wholesaler, who then ships the goods directly to the customer. As in retail businesses, the majority of retailers make their profit on the difference between the wholesale and retail price but some retailers earn an agreed percentage of the sales in commission, paid by the wholesaler to the retailer.