What Else Contains Alpha-Gal?

A number of vaccines1 (including COVID-19 types), monoclonal antibodies, heparin, some types of antivenom, heart valves made from cows or pigs.
There are other medications that someone with a known alpha-gal allergy will need to avoid, but the products listed above are the ones that have the potential of creating the allergy, since they come into contact with the bloodstream directly.