Two new studies show that common opiate-based painkillers can stimulate the growth and spread of cancer cells. Both studies demonstrated that protecting lung cancer cells from opiates reduced proliferation of the cells as well as invasion and migration in both cell culture and mouse models.

If clinical results turn out to be the same, then doctors may have to change the way they currently do surgical anesthetization. In response to this, an anesthesiologist named Jonathan Moss modified a drug (MNTX) that blocks morphine's side effects,but does not interfere with its mitigation of pain.

By using this drug, several patients with a life expectancy of two months were able to live for five or six. For those with moderate pain, it may be best to avoid the use of opiates in favor of other methods for pain management, however, you should always consult with a doctor first.