Barbiturates are used as hypnotics, sedatives and anesthetics and are readily absorbed from stomach. Duration of action of barbiturates, in therapeutic doses varies from: 8-16 hours (long acting, e.g., phenobarbital); 4-8 hours (intermediate acting, e.g., amobarbital); 3-6 hours (short acting, e.g., pentobarbital). Barbiturates may enhance other CNS depressants, such as ethanol, morphine derivatives, tranquilizers, and reserpine.
No special preparation is needed for Barbiturates Quantitative 24 Hour Urine. Inform your doctor if you are on any medications or have any underlying medical conditions or allergies before undergoing Barbiturates Quantitative 24 Hour Urine. Your doctor depending on your condition will give specific instructions.
| Gender | Age groups | Value |
| UNISEX | All age groups | > 50 ng/ml |