ATLANTA (AP) — The Georgia Senate has overwhelmingly passed a sweeping medical marijuana bill that now goes back to the House for tweaking.

Republican Rep. Allen Peake of Macon wrote the House bill that led to a substitute from the Senate Health and Human Services Committee. Peake said Monday that he's confident the House will approve the latest measure.

The substitute, which passed 48-6, could be voted on in the House as soon as Wednesday. Peake says he's confident it could be signed by Gov. Nathan Deal by week's end.

The Senate committee deleted Fibromyalgia from Peake's original bill, but left in eight medical conditions that can be treated with medical marijuana.

Those conditions are seizures, cancer, sickle cell anemia, Crohn's disease, Lou Gehrig's disease, mitochondrial disease, multiple sclerosis and Parkinson's disease.