My understanding is this is a class of antibiotics called fluoroquinolones (I think there may be another similar name as well, or one with a slightly different spelling). My understanding is these drugs target DNA, whereas most other antibiotics target the cell wall. That they targetsDNA would likely go a long way toward explaining how they often do such widespread, systemic damage to the nerves (and brain), and why it can be so ototoxic. In many cases they eviscerate the connective tissue in the body (which as I understand, makes up about 30-40% of our body weight).
Thousands upon thousands of people have been horribly damaged by these kinds of antibiotics (unnecessarily so, as there are almost always safer, less dangerous options to choose from). It's why many of these drugs have already been taken off the market. But the ones that remain are just as harmful as the ones that have already been banned. My understanding is that it's a widely held view that many of the soldiers who experienced Gulf War Syndrome were likely "floxed", as the symptoms are almost identical.
I've been on an ME/CFS forum for many years, and a number of people developed this debilitating disease (very similar to Gulf War Syndrom) after being given a fluoroquinolone antibiotic. One possible reason for this is that the connective tissue becomes so damaged, that it can no longer hold the neck and head in place, and the weight of the head compresses the brainstem. -- But that's a whole other story.
Why some would point to scientific studies that refute the horrible experiences of literally tens of thousands of sufferers puzzles me, to say the least. What is often not taken into account is that symptoms of damage often don't appear until many years later. And repeated use creates cumulative damage over time.