- Three treatment periods during which subjects will be resident prior to the evening meal the 1 day before dosing with AZD7594 (Day -1) until at least 48 hours after dosing; discharged on the morning of Day 3. Subjects will then return for ambulatory visits 72, 96, 144 and 240 hours after dosing, (Day 4, Day 5, Day 7 and Day 11 respectively).