the evening) of the plasma corticosteroid levels. Amphetamines may interfere with urinary steroid determination. Headache (26%), asthenia (6%), somnolence , infection , tooth disorder , speech disorder , and twitching have also been reported. References Product Information. Adderall (amphetamine-dextroamphetamine) Anonymous Shire Richwood Pharmaceutical Company, Florence, KY. PROD; Multum version: 154.0 (Jun 16,