Scientists have invented a speedy method to make potent painkilling opioids using bioengineered baker's yeast instead of poppies, but need to fine-tune the process to make it commercially viable, according to a study published on Thursday.

The new method, if it can be made more efficient, could significantly change the multibillion-dollar pain medication manufacturing business, but raises concerns about aggravating the growing problem of opioid abuse.

This same type of approach potentially also could be used to make other currently plant-based medicines for fighting cancer, infectious diseases and chronic illnesses.