A bill to allow Illinois residents to use medical Marijuana if they have serious diseases such as AIDS, cancer and multiple sclerosis was passed by the Illinois Senate in a 30-28 vote, the Associated Press reported.

The Illinois House will now consider the bill. Earlier this year, a House committee passed a medical Marijuana measure.

If the bill is eventually signed into law, Illinois would become the 14th state to have such measures in place, Bruce Mirken, spokesman for the Marijuana Policy Project, told the AP.

Opponents say that legalizing medical Marijuana would make it difficult for police to enforce other Marijuana laws and would be a move toward general legalization of the drug.