CHICAGO - The American Medical Association is pushing for warning signs about marijuana use during pregnancy and breast-feeding.

Pot's potential harms include premature birth, low birth weight and attention problems in children. The AMA says warnings should be posted at dispensaries that sell pot and on packages of marijuana sold for medical and recreational use. 

The group adopted that stance at a policy-making meeting Monday in Atlanta. The AMA will seek regulations to put those warnings into effect.

Several states have requirements for health warnings on cannabis product labels, but the new policy says only Oregon requires a point of sale warning about use in pregnant or breast-feeding women.

Recreational use is legal in Oregon, Alaska, Colorado, Washington state and Washington, D.C. Medical use is legal in 23 states and Washington, D.C.