Abstract: Antagonists to platelet-activating factor provide analgesic effects as well as limit the release of inflammatory mediators. Use of these antagonists in the form of pharmaceutical compositions or nutritionals is beneficial (1) in the treatment of acute and/or chronic pain; (2) in the inhibition of inappropriate or excessive contraction of the uterus; (3) in the treatment of septic shock; and (4) in the inhibition of angiogenesis and/or tumor cell proliferation.