While most people respond well to this medication, there are some potentially negative effects of Valium. The drug is a
controlled substance that has the potential to be abused. Since it can cause psychological and physical dependence, it should not be used for long periods of time. In general, Valium is not recommended for people with a history of alcohol or drug abuse.
Valium can also cause a number of side effects. In clinical studies, some of the most common problems that were reported with this medicine included blurred vision, difficulty passing urine, slurred speech, and bladder or bowel control problems.