Review on 💊 PrimeMed 1oz Disposable Graduated Medicine Cups - Pack of 500, Plastic by Timothy Xayamonty

I really hope these cups can meet my needs. However, the inner surface of the cups is rough at the fingertips where the graduations are applied. When I remove my finger, there seems to be a film on the fingertip that washes off with water. The outer wall of the cup is smooth, without foil. So I don't know if this roughness on the inner wall is from very small plastic particles coming from the inscriptions or something else. I need cups that I can use for tablets, capsules and most importantly, small amounts of liquid medication that I can swallow without cleaning the cups first. I hope I can learn more about the cleanliness and safety in these cups without having to wash them before use.