Belgium has Riopan for €8.95 (price controlled):

  • comes in 20 individually sealed shelf-stable packets of 10 ml doses containing 800mg of magaldrat

Netherlands (price controls unknown):

  • Antagel Sanias for ~€7.50 comes in 1 bottle of 300ml (20—30 doses of aluminumoxide + magnesuimhdroxide) which must be refrigerated after opening; stable for only 1 month
  • Maalox chew tablets (×20 of 200mg aluminumoxide & 400mg magnesiumhydroxide) for €4.85 [€c24/dose]

Superficially the Antagel Sanias seemed like a winner because the price is lower than Riopan and you can control your dosage. But you have 1 month to use it up! Whoever needs 20—30 doses in 1 month has serious enough problems that they probably should be getting more rigorous treatment. Not sure why this stuff exists in that quantity. If you only get acid reflux 1—2 times/week, the Antagel Sanias is a ripoff.

Not sure why Maalox tablets have 10 times the potency of Antagel Sanias. Is there a 90% absorption loss with chew tablets?