Picked up some Papaya Enzyme this weekend even though we don't cruise until June. Happened to be in the Sunflower Market and there it was. Ended up with a rumbly in my tumbly last night and tried it for the first time. Within half-an-hour, no more rumbly! Worked better than Tums or Rolaids. The brand we picked up wasn't actually all that tasty (I think I described it to my DW thusly: Last time I had that taste in my mouth, I was looking into the toilet), but the bad taste didn't linger and it was absolutely effective! Highly recommended!