Zultan Latanoprost Latanoprost + Timolol
ModerateIf an eye drop that contains thimerosal is mixed with latanoprost, a precipitate (solid particles) forms. This applies only to drops that contain thimerosal, and the leaflet does not say that Latanoprost + Timolol itself contains it.
These medicines are often taken together with some care. Your doctor may change a dose, space them apart or check on you more often. Make sure your doctor and pharmacist know you take both.