Extended use of Diazepam can reduce its effectiveness and make the users tolerant to it. Tolerance can be understood from the fact that after using it for more than 15 days, a person requires a higher dose of it in order to get similar effect. Continued use also leads to addiction and physical dependence. The dose of Valium should never be discontinued abruptly without a health expert’s opinion. A patient may experience withdrawal symptoms when his physician advises him to stop the use of Valium. The brain activity of a patient can rebound and race uncontrollably, leading to seizures and other dangerous consequences. Hence, the dosage of Diazepam 5 mg should be reduced over a period of time.