The vestibular system includes the parts of the inner ear and brain that help control balance and eye movements. The type and severity of vestibular disorder symptoms can vary considerably, and be frightening and difficult to describe.
Heroin can be detected in urine for 1-2 days. However, heroin will show up in the urine for longer periods if taken in higher amounts, or if someone is a habitual heroin abuser. Sometimes heroin can linger in the body longer depending on factors like weight or body mass.
Close to 90% of a single morphine dose is eliminated in the 72 hours urine, with 75% present as M3G and less than 10% as unchanged morphine. Heroin has an extremely rapid half-life of 2-6 minutes, and is metabolized to. 6-acetylmorphine and morphine. The half-life of 6-acetylmorphine is 6-25 minutes.