I've been seeing posts about hair loss with these meds. I'd suggest ensuring you're consuming enough protein and calories. Rapid weight loss can definitely impact hair health.
Regarding hair loss concerns with rapid weight reduction: Telogen effluvium is often the culprit. Hair follicles may temporarily cease activity due to the body's stress. It's vital to maintain adequate protein and nutrient intake. Consult your physician; they might advise on minoxidil or finasteride.