Lab test devised for medication (7)

I believe the answer is:

tablets

I'm a little stuck... Click here to teach me more about this clue!

'lab test devised for medication' is the definition.
I can't judge whether this defines the answer.

'lab test devised' is the wordplay.
'devised' indicates anagramming the letters.
'lab'+'test'='labtest'
'labtest' is an anagram of 'TABLETS'.

Can you help me to learn more?

(Other definitions for tablets that I've seen before include "Battles (anag.)" , "Pills" , "Pellets of medicine" .)

I've seen this clue in The Mirror.

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