Hello, dear @Was !
Full list of Duromine inactive ingredients includes magnesium stearate, titanium dioxide, lactose, organic gelatin, iron oxide black, and liquid paraffin.
In addition:
Duromine 15 mg contains: brilliant blue FCF (CI 42090), iron oxide yellow (CI 77492);
Duromine 30 mg contains: iron oxide red (CI 77491);
Duromine 40 mg contains: erythrosine (CI 45430), sunset yellow FCF (CI 5985).
Duromine capsules are gluten-free.