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 $169,666 or 3% lower during the year ended December 31, 2023, compared to the same period in 2022 consisting of a $448,266 decrease in the net sales of Stendra® and a $278,600 increase in Medical Device Sales. The decrease in net sales of Stendra® was substantially due to increased related sales allowances. The increase in net sales for Medical Devices included an increase in domestic and international sales of VED systems.
Cost of Sales
Cost of sales for the year ended December 31, 2023, were $1,631,220, composed of $277,490 of cost of sales for our Prescription Medicines segment and $1,353,730 for our Medical Devices segment.
Cost of sales for the year ended December 31, 2022, were $2,289,418, composed of $949,197 of cost of sales for our Prescription Medicines segment and $1,340,221 for our Medical Devices segment.
Cost of sales for the Prescription Medicine segment for the year ended December 31, 2023, consisted of 58% third-party product cost of sales, 41% royalty expenses, 26% third-party logistics (“3PL”) order fulfillment, shipping expenses and other cost of sales partially offset by an 25% benefit in inventory obsolescence reserves.
Cost of sales for the Medical Device segment for the year ended December 31, 2023, consisted of 81% raw materials and 19% production labor.
Cost of sales decreased by $658,198 or 29% during the year ended December 31, 2023, compared to the same period in 2022. For the years ended December 31, 2023, and 2022, cost of sales as a percentage of net sales was 28% and 38%, respectively. The decrease in cost of sales as a percentage of net sales was a result of decreased excess and obsolete inventory, decreased 3PL order fulfillment, shipping expenses and other cost of sales, offset by increased sales allowances that reduced net sales.
Gross Profit
Gross profit for the year ended December 31, 2023, was $4,191,168 or 72%, composed of $2,008,883 of gross profit from Prescription Medicines and $2,182,285 from Medical Devices. Gross profit for the year ended December 31, 2022, was $3,702,636 or 62%, composed of $1,785,442 of gross profit from Prescription Medicines and $1,917,194 from Medical Devices. The increase in gross profit was driven by the factors noted above.
Operating Expenses
Selling, General and Administrative
Selling, general and administrative expenses for the year ended December 31, 2023, were $9,261,471, composed of $1,736,512 of selling, general and administrative expenses of our Prescription Medicines segment, $1,885,489 of selling, general and administrative expenses of our Medical Devices segment and $5,639,470 of general corporate expenses.
Selling, general and administrative expenses for the year ended December 31, 2022, were $12,209,162, composed of $4,947,466 of selling, general and administrative expenses of our Prescription Medicines segment, $1,685,678 of selling, general and administrative expenses of our Medical Devices segment and $5,576,018 of general corporate expenses.
Selling, general and administrative expenses for both segments include selling, marketing and regulatory expenses. Unallocated general corporate expenses include costs that were not specific to a particular segment but are general to the group, including expenses incurred for administrative and accounting staff, general liability and other insurance, professional fees and other similar corporate expenses.
Selling, general and administrative expenses decreased by $2,947,691 or 24% during the year ended December 31, 2023, compared to the same period in 2022. Decreased selling general and administrative expenses were primarily driven by decreased direct selling and marketing expenses of $1,197,294, decreased stock based compensation expense of $777,844, decreased prescription data expenses of $575,077, decreased payroll expenses of $225,200 resulting from decreased headcount, decreased insurance expenses of $409,288,