Police in Bristol got the message from the student in Montreal on Wednesday night.
The student, a former resident of nearby Monkton, stated concern for the woman, but didn't have access to Vermont 911 and didn't know where the woman lived, so she messaged police.
Bristol police finally found an address for the woman in Colchester and contacted police there, who conducted a welfare check and said the woman was intoxicated.
She made comments that confirmed she had planned to commit suicide by taking a large quantity of morphine.
Police took her to a crisis centre for evaluation.