Ptolemy-An ancient Greek astronomer and mathematician, Ptolemy's geocentric views on the structure of the universe dominated astronomy until the Scientific Revolution. Santorio Santorio-Santorio (1561-1636) was one of the first to apply the evolving physical philosophy of the Scientific Revolution to animal biology.
2 doctors agreed: A while: Since you took prozac/fluoxetine for only 4 days, it should leave your system in about 1 - 2 weeks completely. In general, if someone has been taking Prozac for a while (longer than two weeks), it can take up to 5 weeks to completely wash it out of ones system.
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.