Answer
Urinary retention is a common side effect of Benylin Dry Coughs Night Syrup, affecting at least 1 in 100 but fewer than 1 in 10 people.
Sources for this answer
- Benylin Dry Coughs Night SyrupMcNeil Products Ltd · emc · SmPC §4.8 Undesirable effects · Version 13Document updated
Sources checked