What happens if you mix temazepam (restoril) with other drugs?

Some people may mix a “downer” like Restoril with an “upper,” or central nervous system stimulant, like cocaine or methamphetamine. Using a stimulant and depressant together can be dangerous. This combination pulls a person’s body in two different directions, an effect that could cause profound stress on the heart and other important functions. This may cause a person not to realize how intoxicated they are, bringing them to use more of the other substance. Doing so could cause overdose.