Even without knowing the names of this drug, treatment or pharmaceutical, you are always free to ask “What other options are there?” Or to seek a second opinion.
You may be "free to ask", but asking isn't exactly free.
If you ask your GP, and they are discounting your experience, they may not give you a useful answer. If you want a second opinion, you need to seek out a new GP, and usually have a whole appointment related to intake of a new patient, and then schedule a second appointment just to talk about your actual problem.
Maybe a specialist? Well, they have to actually be somewhere near you, and if they are, you probably need a referral, and your insurance has to be on board with it. Oh, and once you convince your GP to give you that, you may need to wait months for the specialist to have an opening, if they are even open to new patients at all. And each appointment is a day off work that you may not be getting paid for, that you need to arrange childcare for, etc.
And that's just the traditional issues. Currently, the healthcare system it critically understaffed, so all those loops tend to take even longer.
Having the understanding that there are treatments, and the names of some of them, when you walk in the door can matter a great deal. At least, that's been my wife's lived experience. And she is far more knowledgeable about medicine than the average Joe on the street. YMMV.
In a better world, with a non-borked healthcare system, patients could walk into the doctor ignorant, and still get the best care. But, that's not really the case now.