HomeMaternity and child health care the most important rout of drug excretion for nonvolatile substances publisher :NIL NAM -March 19, 2017 the most important rout of drug excretion for nonvolatile substances is: a. lungs b. kidneys c. feces d. liver Labels Maternity and child health care Facebook Twitter Share:the most important rout of drug excretion for nonvolatile substances Facebook Twitter WhatsApp Pinterest LinkedIn Reddit Tumblr Telegram Email