Prescription Medicines sales consist of sales of Stendra® in the U.S. for the treatment of male ED. Stendra® was primarily sold directly to five main customers, which collectively accounted for approximately 98% of Stendra® gross sales for the nine months ended September 30, 2021. Individually, sales to the five main customers accounted for 34%, 28%, 14%, 12% and 11% of Stendra® gross sales for the nine months ended September 30, 2021.
Medical Device sales consist of domestic and international sales of men’s health products for the treatment of ED. The men’s health products do not require a prescription and include Vacuum Erection Devices (“VEDs and related accessories”).
Net sales were $2,048,244 or 31% higher during the nine months ended September 30, 2021, than in the same period in 2020 consisting of a $2,099,060 increase in the net sales of Stendra® and a $50,815 decrease in Medical Device Sales. The increase in net sales of Stendra® was substantially due to higher wholesaler demand as the market began to recover from the implications of the 2019 FDA warning letter that impacted the Company’s ability to promote Stendra® through the 3rd quarter of 2020 and the continued recovery from the COVID-19 pandemic in 2021. The decrease in net sales for our Medical Devices segment was attributable to decreased demand in domestic sales of VED systems partially offset by increased demand in international sales of VED systems.
Cost of Sales
Cost of sales for the nine months ended September 30, 2021, were $1,355,838, composed of $607,582 of cost of sales for our Prescription Medicines segment and $748,256 for our Medical Devices segment.
Cost of sales for the nine months ended September 30, 2020, were $2,305,169, composed of $1,527,169 of cost of sales for our Prescription Medicines segment and $778,000 for our Medical Devices segment.
Cost of sales for the Prescription Medicine segment for the nine months ended September 30, 2021, consisted of 56% third-party product cost of sales, 50% royalty expenses and 9% 3PL order fulfillment and shipping expenses, which was partially offset by a 15% favorable adjustment to the inventory obsolescence reserves.
Cost of sales for the Medical Device segment for the nine months September 30, 2021, consisted of 87% raw materials, 10% production labor and 2% other cost of goods sold.
Cost of sales decreased by $949,331 or 41% during the nine months ended September 30, 2021, compared to the same period in 2020. For the nine months ended September 30, 2021, and 2020, cost of sales as a percentage of net sales was 16% and 35%, respectively. The decrease in cost of sales as a percentage of net sales was a result of decreased sales order fulfillment costs (on a per unit basis) during the nine months ended September 30, 2021, and decreased amortization expense due to the inventory step-up asset being fully amortized in September 2020.
Gross Profit
Gross profit for the nine months ended September 30, 2021, was $7,322,586 or 84%, composed of $5,620,172 of gross profit from Prescription Medicines and $1,702,415 from Medical Devices. Gross profit for the nine months ended September 30, 2020, was $4,325,011 or 65%, composed of $2,601,525 of gross profit from Prescription Medicines and $1,723,486 from Medical Devices. The changes in gross profit were driven by the factors noted above.
Operating Expenses
Selling, general and administrative
Selling, general and administrative expenses for the nine months ended September 30, 2021, were $11,411,113, composed of $4,985,603 of Selling, general and administrative expenses of our Prescription Medicines segment, $2,014,424 of Selling, general and administrative expenses of our Medical Devices segment and $4,411,086 of general corporate expenses.
Selling, general and administrative expenses for the nine months ended September 30, 2020, were $11,997,185, composed of $6,658,231 of selling, general and administrative expenses of our Prescription Medicines segment, $1,780,530 of selling, general and administrative expenses of our Medical Devices segment and $3,558,424 of general corporate expenses.