A member of the group of physiologically active compounds derived from arachidonic acid. Members of the group play major roles in the reproductive process, smooth muscle stimulation, blood pressure levels, inflammation, etc. Included here are prostacyclins, thromboxanes, and leukotrienes.
(=> (Prostaglandin ?Self) (Exists (?A) (And (Derivative-Of ?Self ?A) (Arachidonic-Acid ?A))))