My HIV doc mentioned something about adjusting doses accordingly because I still have Norvir as a booster in my HAART regimen.From the Norvir site:QuoteTell your doctor especially if you take the following medicines, as they may cause an increase in side effects if you take them with NORVIR: meperidine, nilotinib (Tasigna???) and dasatinib (Sprycel???), colchicine (Colcrys???, Col-Probenecid???,