The legal change needs to explicitly aim to legalize said use and include a legal way to obtain them without a medical justification.
All timeframes:
/CodeandSolder/will-any-country-legalize-recreatio-5a0de1699cc3
/CodeandSolder/will-any-country-legalize-recreatio-3af8f5e6f21e
/CodeandSolder/will-any-country-legalize-recreatio-c4b59c29a679
/CodeandSolder/will-any-country-legalize-recreatio-9e065d2a200e
/CodeandSolder/will-any-country-legalize-recreatio-ad31a9008633
/CodeandSolder/will-any-country-legalize-recreatio-1a525266f522
See also:
/CodeandSolder/will-any-country-at-least-partially-d31c8d2e6e56
/CodeandSolder/will-any-country-legalize-recreatio
(and other timeframes)
1,000@a2bb no, as stated there needs to be a legislative action taken with intent to legalize recreational use, abusing cough medication does not count