In Asia, a large tiger might sometimes kill and eat a small or medium-size panda or other Asian bear. Anywhere else in the world, the only animal that can eat a full-grown bear is another bear. But bears sometimes do eat other bears. Baby bears have the most to fear from other bears. Large male grizzly bearsâalso called brown bearsâoccasionally kill and eat grizzly bear cubs. And large male polar bears sometimes kill and eat small polar bears. In addition, sometimes grizzly bears kill black bears.
Vyvanse is detectable in urine up to 3 days after ingesting Vyvanse. Vyvanse is detectable in hair samples for months after ingestion. Though Vyvanse itself only stays in your system four hours post-ingestion, the active drug d-amphetamine stays in your system for 40 hours.
To determine how long Vyvanse is likely to stay in your system, it is necessary to examine its elimination half-life. The elimination half-life of Vyvanse is estimated to be under 1 hour, some sources suggest ~47 minutes. This indicates that following administration of Vyvanse, nearly 50% of an ingested dose will be eliminated from your system in just one hour. For complete systemic clearance of Lisdexamfetamine (the chief ingredient), it will take (on average) between 4.3 and 5.5 hours; an extremely short duration.