Where might I find bismuth sold online?

[Dimitri001]

Since people here often buy research chemicals, I figured someone might know, what are some places I could check that might possibly be selling bismuth?

To be clear, I'm looking for a formulation for oral consumption, not the raw metal, and I'm specifically looking for bismuth subcitrate (colloidal or non-colloidal) or
ranitidine bismuth citrate, not bismuth subsalicylate, which is a constituent of pepto bismol.