negative effects of valium long term
Valium Long-Term Effects. Heavy use of Valium over an extended period of time can have powerful effects on the brain and body. These effects can be permanent and, in some cases, life-threatening. The long-term effects of Valium include: 1  Memory loss. 2  Hallucination. 3  Difficulty breathing. 4  Slowed pulse. 5  Coma. 6  Heart attack.