The other 8 were drug specific, covering histamine-2 (H2) blockers [17], antihypertensives 18], anti-infectives [19], central nervous system stimulants for attention deficit/hyperactivity disorder [20], disease-modifying therapies for multiple sclerosis [21], tumor necrosis factor (TNF) inhibitors [22], and cancer medications [23,24]. The gene discussed is TNF; the disease is multiple sclerosis.