Answer
The Detrusitol XL product information says tolterodine tartrate should be avoided during breastfeeding because no data are available on its excretion into human milk.
Sources for this answer
- Detrusitol XL 4 mg Prolonged-release CapsulesViatris (formerly Mylan or Upjohn) · emc · SmPC §4.6 Fertility, pregnancy and lactation · Version 23Document updated
Sources checked