Reading this answer and especially the comments leads me to questions:

• Should one use Aspirin in high altitudes?
• Should one use it as a precaution or only when actually getting headache or other problems?

I heard that the decreasing oxygen level in the blood will cause the body to produce more (and bigger) red blood cells if you acclimate properly. This thickens the blood, to get it thinner a drug like Aspirin could be used. But also drinking a lot helps. Still, disguising headache and therefore the major sign of acute mountain sickness (AMS) might be a drawback.

I know this is a general question about medicine which is difficult to answer without doctors and for the specific person of interest. Still, I would like to know the pros and cons of Aspirin in high-altitude or in general the influence and consequences for mountaineering.

Reading this answer and especially the comments leads me to questions:

• Should one use Aspirin in high altitudes?
• Should one use it as a precaution or only when actually getting headache or other problems?

I heard that the decreasing oxygen level in the blood will cause the body to produce more (and bigger) red blood cells if you acclimate properly. This thickens the blood, to get it thinner a drug like Aspirin could be used. But also drinking a lot helps. Still, disguising headache and therefore the major sign of acute mountain sickness (AMS) might be a drawback.

I know this is a general question about medicine which is difficult to answer without doctors and for the specific person of interest. Still, I would like to know the pros and cons of Aspirin in high-altitude or in general the influence and consequences for mountaineering.