In the EML, bromine and iodine are each present solely intwo drugs.In particular, bromine is found in halothane, the only inhalationalanesthetic containing this element, and in bedaquiline, a drug effectivein tuberculosis (TB) that was approved in 2012, representing the firstnew medicine for TB in more than 40 years.26 Iodine is present in the antiarrhythmic amiodarone and in the syntheticversion of the thyroid hormone levothyroxine. The gene discussed is TG; the disease is tuberculosis.