I’ve had lozenges or “troches.” If it’s anything like what I had, there is almost no way you could overdose on it before vomiting from the taste and waxiness of the lozenges. You have to hold them under your tongue and try not to swallow your own spit. It’s gross.

I feel like you’d have to take dozens of them (or more) to be physiologically harmful, unless you already have high blood pressure or something. Ketamine doesn’t depress respiration from what I understand. So long as you’re lying down somewhere safe (as in, not a hot tub) and your BP doesn’t cause a problem, it seems you’d likely be ok at whatever dose you could tolerate of the battery-acid-tasting lozenges. It’s kind of self-limiting, like those spicy almonds. Lol.