<unk> s (also spelled<unk>  are substances that promote hemostasis (stop bleeding).  Styptics (also spelled stiptics) are a specific type of<unk>  that work by contracting tissue to seal injured blood vessels.  Other<unk> s used in medicine work by adsorbing water from blood, causing platelet aggregation and promoting coagulation.
Hemostatic agent
Anticoagulant
Immunostimulator
Analgesic
Immunosuppressive drug
Immunoconjugate
Antimicrobial
Steroid