what affects your perception and speed the most when driving.

marjuina or narcotics.

6 answers

Both are narcotics and have a negative effect on driving ability and perception.
but if you had to chose one or the other. it would be narcotics right...
If they are medically prescribed narcotics, there will be a warning on the label, "Do not drive while taking this medication."
There is no really good choice between the two. Anything which inhibits perception is dangerous behind the wheel of a car. HOWEVER< in an emergency, medically prescribed narcotics would be less dangerous because the patient would be totally aware of the danger.
Did you not read GuruBlue's response. Marijuana IS a narcotic.

??
If I were to have to chose between the two, I would choose Narcotics because as GuruBlue said....marijuana is also a narcotic.
The dosage of either is important. The amount injested affects driving and judgement.