Hi, Thanks for the query. I understand your concern. Ditropan XL acts by relaxing bladder muscles. Side effects of Ditropan XL are- Dizziness, drowsiness or blurred vision/ dryness of nose, ear, skin throat / Indigestion, nausea,diarrhea or constipation/ Headache /sleep trouble. Severe side effects are - allergic reactions including itching rash, hives/ difficulty in breathing or swallowing,swelling of face, lips, fever with painful urination, changed heart beats,psychological effects like confusion, hallucinations or mood changes. You are having minimal dosage of drug ... so had very little chances of side effects. Now as you had been advised to withdraw the medicine ... with the low dosage & no side effects to drug suggest no possibility of withdrawal symptoms after stopping it. Thanks.