Common medications that may cause Dry Mouth:
Bronchodilators (typically used for asthma)
Decongestants (typically used for colds)
Diuretics (typically used to increase the flow of urine)
Muscle relaxants
Narcotic analgesics (typically pain medications)
Sedatives (typically known as tranquilizers)
Anti-anxiety medications
Anti-hypertensive medications
Anti-depressant medications
Anti-parkinsonian medications
Information as per the Ontario Dental Association
https://www.oda.ca/oral-health-basics/oral-health-risk-factors/aging/