The most common and most likely answer to this crossword clue is the 10 letter word IBUPROFENS
I've seen this crossword clue in The Guardian
I
B
U
P
R
O
F
E
N
S
Buddy explains!

The straight part
We know that "drugs" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case drugs = ibuprofens.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does IBUPROFENS mean?
IBUPROFENS noun- An NSAID, isobutylphenyl propionic acid.