Smaller doses for perioral treatment than for higher facial purposes are applied since the oral musculature responds a lot more strongly to precisely the same BTX-A dosing. Just one planning of botulinum toxin type B (MyoBloc®/NeuroBloc®) exists. Its sole indication and FDA acceptance lies in treatments of cervical dystonia. https://jetonlinepharma.us/product-category/botulinum-toxins/