Answer
Corticosteroids, systemic anticholinergics, antihistamines, sympathomimetics, pethidine and tricyclic antidepressants may oppose its miotic effect, although this is not clinically proven for every combination.
Sources for this answer
- Minims Pilocarpine Nitrate 2% w/v, Eye drops solutionemc · SmPC Current selected SmPC · Version 7