<unk>  sodium (TBC-11251) is a medication for the treatment of pulmonary arterial hypertension (PAH).  It was marketed as Thelin by Encysive Pharmaceuticals until Pfizer purchased Encysive in February 2008.  In 2010, Pfizer voluntarily removed<unk>  from the market due to concerns about liver toxicity.
Sitaxentan
Bosentan
Macitentan
Ambrisentan
Bepotastine Besilate
Iofendylate
Epinastine hydrochloride
Tafamidis