Taking pills with letters on Shabbos
There are many medicines which are permitted to be used on Shabbos in various situations. However, some of them have letters written or engraved on them. Is it permitted to take these pills on Shabbos?
- Does it matter whether it is printed or engraved?
- Does it matter if it is swallowed whole or chewed/sucked until it disintegrates?
- Are there any other considerations?