Hi
I'm not a vet nor American. But I can tell you about buying from neighbouring countries. I'm a 75-year-old Australian with a house in Baguio.
In Australia public hospital and GPs are free. Medical specialists are generally partly free. If you pay into a health medical fund and depending the level of cover you can have private hospital and prescription reading glasses paid, some or all of your medical specialist and dental paid. That's it roughly in a nutshell. But that left me with a problem. 10 years ago I bought my CPAP machine for sleep apnia in the US for half price. Point: Not everything medical in the country you live in is the most economical.
7 years ago I got 7 dental implants and all root canal and all crown in India for about USD 9K, and that's with the new technology and not the more than 50-year-old technology with plenty of blood and pain and only guaranteed for 10 years (I have lifetime guarantee). My dentist in Sydney said it would cost at least USD 70K here. No health fund here covers dental implants because it's considered cosmetic and I wasn't prepared to spend the cost of a house in the Philippines. So my Australian friend who has been to the Philippines multiple times and had a few dental implants done there said his implants costs were double, decided to go to India the following year, had all his teeth pulled out and started afresh because they are much better fitting all done at once and all on the one trip. Cost about USD 25K. I'll be returning to India in 2-3 months to do the rest of the teeth. Put some extra hairs on my head at the same time. It’s also cosmetic. Hahaha.
Most pharmaceuticals are manufactured in India and supplied to the rest of the world. Don't be fooled by the label. For example, just because the label on Ozempic says made by Novo Nordisk in Belgium doesn't necessarily mean that the actual fluid in the syringe that you put in your body was made in Belgium. That's why I'll be picking up a good supply of it over the counter (without prescription) in India and at half the USD 100 local price for 4 weekly injections which has not been available here for about 6 months because all the overweight and obese community here have discovered it's the best thing so stocks have run out and diabetics for which it was meant for can't get any. And the price for Ozempic in the Philippines is about USD 150. Lesson: Just because the Philippines is a poor country with cheap labour doesn’t mean everything is cheaper than the US or Australia or is the same as other SE Asian countries.
I don’t know what your meds are but I suggest if you want to save a buck then do your homework.
Suggestion: To give you an idea if you can buy in India do a Google search on indiamart. You may get a number of interested suppliers but only deal with big reputable companies. Good luck!