In practice, a lane is a physical object with a temperature profile and a customs regime, and choosing one is a real decision rather than a shipping-option checkbox.
Cost per milligram, worked honestly: a 10 mg vial at £34 is £3.40 per nominal milligram. If the content assay says 9.2 mg, that is £3.70 per actual milligram. If you then lose 4 µL of dead space per draw from a 2 mL fill across twenty draws, that is 80 µL or four per cent of the fill, taking you to £3.85. Add a £110 content assay amortised across the vial and it is £14.85 per milligram for the first vial of a new lot and £3.85 thereafter. The testing dominates, which is the actual argument for buying larger lots.
It helps to be literal here: the diagnostic red flags, in rough order of how much they tell you: a certificate whose lot number does not match the vial; a certificate with no method section; a purity figure quoted to two decimal places with no chromatogram; a testing date that precedes the stated manufacturing date; identical certificates across nominally different lots; and "sterile filtered" offered in place of a sterility test. Each of those is a specific inference, not a vibe.
Regulatory positions on personal importation are published: the relevant frameworks are the US FDA’s personal importation policy in its Regulatory Procedures Manual, the UK MHRA’s guidance on importing medicines for personal use, and the equivalent national provisions in the EU member states and Australia’s Therapeutic Goods Administration personal importation scheme. They differ materially from each other.
Assume no recourse and plan accordingly. That assumption is both prudent and, in this context, accurate.
5This is the first explanation of that which has actually made sense to me. – marta_okonkwo 8 months ago 6Note that the label instructions differ between agents on precisely this point. – nkem_obiora 7 days ago add a comment