( KTRS ) A Mother has been accused of repeatedly poisoning her 9-year-old son for almost a year.

Prosecutors in St. Louis County have charged 35-year-old Rachel Kinsella of Meadville with endangering the welfare of a child. Court documents allege investigators found that Kinsella surreptitiously was having her son treated at two hospitals, getting unspecified prescriptions at both.

Authorities say that Kinsella told police she “accidentally” gave her son the wrong medication on “an occasion.” But medical experts say the amount of drugs found in the boy’s system showed intentional poisoning.

A judge set Kinsellas bond at $50,000.