No they should not. Seroquel will cause drowsiness and so will Dilaudid. If you wish to take them together you should first ask your doctor. They need to be sure the milligrams in each prescription...
Short answer: Yes, but you should be very careful with dosages and the context you take them in. Obviously methadone is a very potent and long lasting narcotic analgesic, high doses of methadone...
Yes, but it's not really recommended. Both are very similar as they are both atypical antipsychotics typically prescribed for bipolar disorder (with other uses to treat depression, various panic...
This is a very difficult question to answer for a hypothetical patient. Generally, Seroquel is taken on a schedule (not "as needed"). However some prescribers may order a bedtime dose, or an extra...