Re: MRK tries qD Isentress again this time, the qD dose is 1200mg, 50% higher than the cumulative daily dose of regular (BID) In adition to the higher dose, note they are using "reformulated" raltegravir this time. That Isentress continues to sell at a $1.6B annualized rate despite competition from GILD’s Stribild is impressive.And despite competition from Tivicay.