I should think that it will depend on the drug regimen you will be on and the timing before your cruise. As I think I noted to you in the Lupron discussion, I found that my ADT drug (Eligard, newer version of Lupron) seems to have made me a lot more susceptible to the effects of alcohol at least in the early stages. One glass of wine about 10 days after my shot with the addition of the Casodex affected me as much as a Manhattan and a glass of wine would normally make me feel. It's possible that, now 8 weeks out from the initial shot, my body may have adjusted to the "new normal", but I've been reluctant to find out. Perhaps at Easter I'll give it another try, after I've completed my radiation therapy (brachytherapy this morning, regular radiation for 4-5 weeks starting in a couple weeks).

You might want to consider a non-alcoholic beer for now. I work at a retail liquor store and have heard from many of my customers how surprisingly good some of the NA beers are. You might check with your local store for recommendations before your trip.