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IV onset
minute
IM onset
15-30 min
`SubQ onset
15-60 min
SL onset
1-3 min
Buccal onset
2-3 min
Oral onset
30-60 min
Rectal onset
30-60 min
Vaginal onset
slow
transdermal onset
1-4 hours
nasal onset
minute
lung onset
5 min