The salt-versus-base issue is worth understanding precisely because it is a genuine regulatory tell rather than a technicality.
Whether a telehealth prescription can be filled at a retail pharmacy depends on the prescription and the jurisdiction rather than on the modality: a prescription for a licensed product from a prescriber licensed in the patient’s jurisdiction is generally fillable anywhere that stocks it. A prescription written to a specific compounding pharmacy for a preparation only that pharmacy makes is not portable, and that non-portability is sometimes the commercial point.
Stated carefully, twelve-month cost modelling, laid out: take the monthly product cost, add consultation or subscription fees, add laboratory monitoring at your chosen interval, add shipping, and then adjust the product cost for actual delivered content and dead-space loss. The route that looks cheapest per vial frequently is not cheapest per twelve months, because the fee structure and the monitoring dominate at lower product costs.
FDA drug shortage list status is published and is the operative fact for whether compounding a copy of an approved drug is permitted under the relevant statutory exemptions; the status changes, and the change has downstream consequences for supply.
The caveat is jurisdictional. Almost everything in this area is specific to a country and often to a sub-national jurisdiction, and a confident answer that does not name a jurisdiction should be treated as describing somewhere else.
If the intake did not ask about contraindications, that tells you what kind of service it is.