You don’t know how to pronounce them or you don’t know what they are called in Spanish? If it’s the latter, you might go to Google and plug in the name of your medication, followed by the word Ecuador. See what comes up. Many of the most common drugs in the States are known by the same name in Ecuador, but pronounced differently. Mycardis in the States, for instance, is Micardis in Ecuador (pronounced mee-cahr-dees).
The best thing to do, of course, is come on a visit with your bottle of meds and take them into a pharmacy and see what the equivalents are. Or you might go to fybeca.com, the website of one of Ecuador’s largest pharmacy chains and plug in some of your prescription names and see what comes up.
There is a woman here in Cotacachi where I live who will go to the pharmacy and check on this for you. I think she charges $5 or $10 via Paypal — let me know if you want her email address?