Doctors generally don't prescribe those medications easily, particularly benzodiazepines. If you're not comfortable lying or exaggerating symptoms to obtain them—which is completely understandable—it does make the process more difficult. Importing them is also inconsistent. Sometimes packages arrive without issue, but other times they're flagged, especially if they contain controlled substances like benzos or come from countries that tend to raise red flags with customs, such as India, Mexico, Pakistan, or China. That level of unpredictability makes it a highrisk option, especially when someone is trying to be precise and careful.
Without access to prescription medications like metoclopramide or oxazepam, the risk of vomiting or experiencing panic does increase. There are some otc alternatives that people use to try to manage these symptoms, though they aren't as effective. Dramamine or meclizine can help with nausea, and diphenhydramine (like benadryl) might help take the edge off anxiety. These aren't substitutes in the clinical sense, but they are the most commonly used otc options when nothing else is available.
Hope this offers a little light, even if just a faint star in a very dark sky.