Lots of versions of Alka Seltzer use aspirin instead of acetaminophen, and aspirin in combination with phenylephrine is documented to reduce congestion more than either alone.
Note - avoid the cold & flu versions (the ones with orange bottoms) and the day & night versions (orange and green bottoms), because they're not aspirin, they're acetaminophen. The traditional blue bottom "Alka Seltzer Severe Cold" is the one with aspirin and phenylephrine.
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Which is actually supported and documented here: https://pubmed.ncbi.nlm.nih.gov/26097788/
Lots of versions of Alka Seltzer use aspirin instead of acetaminophen, and aspirin in combination with phenylephrine is documented to reduce congestion more than either alone.
Note - avoid the cold & flu versions (the ones with orange bottoms) and the day & night versions (orange and green bottoms), because they're not aspirin, they're acetaminophen. The traditional blue bottom "Alka Seltzer Severe Cold" is the one with aspirin and phenylephrine.