The bills approved Tuesday have all previously passed unanimously in the Assembly. They now head to Gov. Scott Walker for his consideration.
One proposal would permit all emergency responders with training to administer Narcan, a drug that counteracts heroin overdoses.
Another would guarantee a measure of immunity for anyone who calls 911 to report an overdose.
A third bill would allow municipalities to hold prescription drug collection drives.
And a fourth would require identification to obtain prescription drugs containing narcotics.
All four were introduced by Rep. John Nygren, a Republican from Marinette, whose daughter has struggled with heroin addiction.