Lisdexamfetamine Dosage Guide

overdose), so periods of extended use often require increasingly larger doses of the drug in order to achieve the same effect. Repeated use of lisdexamfetamine results in a gradual tolerance proportional to the dosage taken. Patients prescribed this drug often must increase their dosage after a time to maintain its efficacy. - Psychosis Using amphetamines in very high doses can result in stimulant psychosis which may include symptoms such as paranoia, delusions, and hallucinations, including the infamous Shadow people. A Cochrane Collaboration review on treatment for amphetamine, dextroamphetamine, and methamphetamine psychosis states that about 5–15% of users fail to recover completely. According to the same review, there is at least one trial that shows antipsychotic medications effectively resolve the symptoms of acute amphetamine psychosis. Psychosis very rarely arises from therapeutic use. The combination of prolonged use of high doses combined with sleep deprivation significantly increases the risk of stimulant psychosis Lisdexamphetamine is approved for medical use with a doctor's prescription, but in most countries it is illegal to sell or possess without a prescription. It requires a special certificate while traveling within the Schengen Area, which covers most of Europe, but not the United Kingdom. - **Australia:** It is a Schedule 8 drug. - **Canada:** Lisdexamfetamine, as well as other amphetamines, is a Schedule I drug. - **Germany:** Lisdexamfetamine is controlled under Anlage III BtMG (*Narcotics Act, Schedule III*) as of July 17, 2013. It can only be prescribed on a narcotic prescription form. - **Norway:** Lisdexamfetamine is a Class A drug under particularly strict control. - **Sweden:** Lisdexamfetamine is a Class II narcotic, with strict requirements for prescription. It has been placed under "utökad övervakning" (extended surveillance). - **Switzerland:** Lisdexamphetamine is a controlled substance as of October 1, 2014