After testing the impact of these drugs on mouse neurons, they identified one candidate—fluphenazine, previously prescribed for schizophrenia—that successfully inhibited not only tetrahydrobiopterin but pain too.

在测试了这些药物对小鼠神经元的影响后，他们确定了一种候选药物——氟奋乃静，以前曾为精神分裂症开过处方——它不仅成功地抑制了四氢生物蝶呤，而且还成功地抑制了疼痛。