I think it is hydrocodone /Tylenol.
The dose is 20 mg of hydro and 325 mg of Tylenol.
Sleep - yes for two reasons 1-Tylenol can be used for sleep 2- the pain that you have has probably caused sleep deprivation. If the med is working then the relief of pain should make you doze off.
Nausea - it very well could. It's one of the higher listed side effects. You can help that by NEVER taking it on an empty stomach. Swallow it with at least 6-& ounces of water. I heard you may feel it's more effective by drinking water.
I'm not sure about that last part but it's still good to drink water.
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