Valium (diazepam) is a fast acting and long-lasting benzodiac epine that treats anxiety disorders.
Valium can be taken by mouth, injection, or rectal gel. When administered via injection, valium takes just one to five minutes to take effect. When taken orally, people usually begin to feel the effects 15 to 60 minutes after ingestion. Rectal gel begins working quickly after administration.
Valium has a half-life of approximately 48 hours. The half-life of a drug is how long it takes for half of a dose to be eliminated from the body.
Valium can be detected in the body in different ways.
Valium can be detected in urine for one to six weeks after being taken.
Valium is detectable in blood for six to 48 hours. Blood tests tend to be used less frequently than other test methods.
A saliva test can detect Valium for one to 10 days after it’s taken.
Saliva tests can present some challenges. Valium side effects can include dry mouth or hypersalivation, which can affect the ability to collect an adequate sample or may dilute the amount of detectable substance in the oral fluid.
4. Hair; up to ninety days.