Deutetrabenazine (trade name Austedo) is a vesicular monoamine transporter 2 (VMAT2) inhibitor indicated for the treatment of chorea associated with Huntington’s disease. The drug was developed by Auspex Pharmaceuticals and is being commercialized by Teva Pharmaceuticals. Deutetrabenazine is a deuterated derivative of tetrabenazine. The incorporation of deuterium in place of hydrogen at the sites of primary metabolism results in metabolic clearance being slowed, allowing less frequent dosing and better tolerability.

Befunolol is a beta-adrenergic receptor blocker approved in Japan for the treatment of open-angle glaucoma. The current drug status is unknown.

Befunolol is a beta-adrenergic receptor blocker approved in Japan for the treatment of open-angle glaucoma. The current drug status is unknown.