One of my general responses whenever someone says "X substance is toxic!" is to note that Everything is toxic. The poison is in the dose.

It's one of those meaningless phrases that people use all the time, usually because they think it's meaningful, or important, or... something. It's also a statement that can be used to place unwarranted weight on the dangers of one thing versus antother, even when those aren't actually relevant at all (see dihydrogen monoxide for an example of how easily this can be manipulated). So the moment someone says "be afraid of X, because it's toxic!" the next question(s) that should come to mind should be "how toxic? Toxic to whom/what? In what dosage? In what enviornment?".

Otherwise, we could be just taking about water, right? Or Oxygen. Or.... well.... anything and everything that exists in the world around us.

So... Absinthe is toxic, if it includes certain chemicals within it (usually related to storage or processing, and not the liquor itself), and those chemicals exceed a specific dosage. Similarly, alcohol is toxic, but only if it exceeds specific levels for human consumption (and honestly usually has more to do with processing, and whether there's ethanol in there). A glass of wine a day not only isn't going to kill you, but does arguably have some health benefits. A fifth of vodka a day, on the other hand...

Can make the same points about coffee, chocolate, carbs, proteins, sugars, and pretty much everything else one might consume in some way. The poison is in the dose.

So... long meandering way to say that V could certainly decide to consume wine as desired, or even absinthe as well. In moderation, of course! And hey! This is a fantasy world with magic healing spells. So... no way to know how easy it may be to deal with many health issues related to such things anyway. Does a single use of cure poison resolve years of liver damge from overdrinking? Dunno. Not even sure to what degree the game system really cares about stuff like this.