What a clinic owner can and cannot plan up front
You can plan the structure: which SKUs drive volume, expected refill cadence, and the patient price points your market supports. What you cannot plan up front with South Lake Compounding is the COGS number itself, because per-vial rates are not public. That gap matters most for high-volume GLP-1 programs, where a small per-vial difference multiplied across hundreds of monthly refills swings the bottom line significantly. Before margin depends on it, request written per-vial cost on your top three SKUs and confirm whether the rate is fixed or subject to renegotiation over time.
Also clarify how ancillary costs hit the P&L. South Lake Pharmacy ships nationally and operates its own USP 795/797/800 cleanroom with in-house compounding — which means shipping and handling may be itemized separately from the drug cost. If those are billed on top of the per-vial rate, the quoted drug number understates your true landed cost. Build your margin model on the all-in number per vial delivered, not the headline rate, so your patient pricing protects the spread you actually need.