Also, a driver's ability to stay in one lane through a curve, brake and maintain speed and proper distance from other cars are affected. Drugs such as crack, LSD and PCP can distort judgment and reality and can cause confusion, panic and strange or violent behavior. Clearly these drugs will impair one's ability to drive. There are no exact measures for drugs and driving, like the blood-alcohol concentration measures for alcohol impairment. The only true test for drugs in the body is a blood sample, which is difficult to take along the side of the highway.
Some people drink alcohol and take medications together.
When this type of impaired driver is stopped, arrested and recorded, the records usually show only the alcohol impairment. The final problem with drug measurement is the enormous variety of medications and their effects. Most people know that the mixing of drugs with alcohol, and the mixture of some drugs with other drugs, can be dangerous, if not deadly. Everyone should realize that mixing any drug with driving can impact your life or the lives of others. Know what you are taking and learn the side effects.