The effect of your sedation depends on the type you’re receiving. If you’re inhaling nitrous oxide, the effects will wear off within just five minutes of the gas being removed. That means you’ll be okay to drive yourself back home afterward and resume daily activities with no lingering drowsiness. Alternatively, the effects of oral conscious sedation may last for the rest of the day. You’ll be instructed to avoid driving or operating heavy machinery for at least 24 hours following your procedure.