Cold storage, light protection, date on the vial. Boring, removes half the variables.

Interdose restlessness is distinct from the original symptom and worth naming separately. How long have you been on diazepam?

Sterility is the part people wave through and it is the part that actually bites.

Loose evidence is not nothing, but a washout either side is the only reason to trust your own take.

Three month limits are cumulative across parcels in more places than people realise.

Ten percent cuts, of the current dose not the original. That is the arithmetic that keeps it survivable.

Daylight, no flash.