Non-Kosher Medicine

May I ingest a health pill/capsule which contains an ingredient(s) (e.g.oil) from a non-kosher fish?

Yes, one may take such a pill if one swallows it with water without chewing and thereby derives no pleasure from it as one would from food which one chews first, as opposed to merely swallowing. (Rambam, Hilchoth Yesodei HaTorah, Chapter 5)