Crossword Genius

As a drug, take herb in the prescribed amount? (6)

Ross

I believe the answer is:

dosage

'the prescribed amount?' is the definition.
(I've seen this in another clue)

'as a drug take herb' is the wordplay.
'as a drug take' becomes 'do' (as in doing drugs).
'herb' becomes 'sage' (sage is a kind of herb).
'do'+'sage'='DOSAGE'

'in' is the link.

(Other definitions for dosage that I've seen before include "precise quantity" , "Provision of medicine in prescribed amounts" , "The giving of medication in prescribed amount" , "Giving of medicine in prescribed amount" , "Prescribed amount of drug" .)

I've seen this clue in The Times.
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