I have ate durian and drank at the same time. No problem. Other than durian makes me burp with durian taste for hours afterwards whether drinking or not.
Durian myths and facts: The truth about its connection to alcohol, cholesterol, libido and more | Malay Mail
Durian Myths: The Truth About Durian and Alcohol, Cholesterol & More - HealthXchange
(Disclaimer: you can find articles saying it is deadly too)