DIFFERENTIAL DIAGNOSIS OF DRUGS OR TOXINS CAUSING FATIGUE

Differential diagnosis of drugs or toxins causing fatigue are : 
-hypnotics
-doxepin 
-opiates
-cannabis
-clonidine
-cigarette
-smoking 
-caffeine
-beta blockers
-anti hypertensive 
-anti histamine
-amphetamines
-amitriptyline 
-alcohol abuse
-trazodone
-tranquilizers
-sedatives
-reserpine
-psychotropic 
-methyldopa
​-lead poisoning