anthonydido |
Most diseases give you one save per day to overcome the effect. If you drink the antiplague after already having made (and failed) the initial save then it will give you one more save immediately. You wouldn't re-roll the initial save as that counts against the "2 saves that day" for antiplague. Now, if you drank it the following day before making your save then you just roll 2 at the same time and use the better one.
KalEl el Vigilante |
When you drink an antiplague before being affected by a disease, it gives you a +4 during 1 hour. If you drink it on any day you must check for a disease you are already affected by, the effect changes and allows you to check twice that day.
The question was about drinking it while you are going through the onset time. The first day you already checked to catch the disease, but the +4 of the antiplague arrives late for that, because you already caught it. Would you get a second check (as you would on a day after the onset) to definitely keep the disease out in its preliminary phase?