CYP2C9 and respiratory system disorder: Specifically, CYP2C8 is reported to metabolize analgesics 29 as well as antidiabetics and cholesterol‐lowering drugs 30, while CYP2C9 was found to metabolize analgesics 31 and neurological drugs 32, and CYP2C19 has been linked to the metabolism of antidepressants and antipsychotics 33, as well as drugs for treatment of respiratory diseases and allergies 34.