Sunitinib malate (Sutent) (Pfizer) Bioavailability not affected by food; after oral dosing, Cmax observed 6-12 h (Tmax) Vd= 2230 L (substrate for ABCB1) (184) Metabolized mainly by CYP3A4 50 mg orally once daily (4 weeks on, 2 weeks off); 37.5 mg orally (continuous daily dosing); 95% binding for sunitinib, 90% binding for sunitinib’s primary metabolite (HSA) Dyspnea and cough have been reported in association with sunitinib treatment (229); there are no reports of sunitinib treatment-induced pneumonitis.