Tritace should be taken in the morning or in the evening?

Take Tritace exactly as your doctor has told you. The manufacturer does not recommend a specific time of taking this drug. According to the SmPC: "It is recommended to take Tritace every day at the same time of day. Tritace may be taken before, during or after a meal, as its bioavailability is not affected by food intake. Tritace should be washed down with liquids; it must not be crushed or chewed." If you do not remember what the doctor's recommendations were, it is worth consulting him, e.g. by phone. I enclose the leaflet: https://www.gdziepolek.pl/produkty/80006/tritace-5-tabletki/ulotka