That's why I take ibuprofen on long flights.
I would put my money on a baby aspirin.
Cyclooxygenase Inhibitors and the Antiplatelet Effects of Aspirin
P.S. Can you access that abstract without registering with the New England Journal of Medicine, NEJM? I'm registered, but I don't subscribe to the NEJM, JAMA, BMJ, Lancet, Nature and Science. Sometimes they permit free access to complete articles, but I'm not going to fund such politically correct publications. I'm curious about the access of the general public regarding the public's access to their abstracts, so I really would appreciate some feedback on this thread.
P.P.S. IIRC, I originally found that abstract using PubMed some years ago. Today, I located that abstract by entering aspirin and ibuprofen into NEJM's search function, after becoming frustrated with all the results at PubMed using those same terms. Thank God for memory neurons!