I finally broke down and told my partner what was going on yesterday, since I needed him to translate to the pharmacist. They gave me two
effervescent tablets (baking soda, sodium carbonate, acetosalic acid, and citric acid compound) and a medicine called Kaosec (loperamida chloride? my translation may not be correct). I took one of the effervescent tablets right away along with one of the other pills, and then the other effervescent this morning.