The present invention provides a system enabling the oral delivery of therapeutics derived from polyunsaturated fatty acids (PUFAs), their metabolites and derivatives, including, eicosanoids, prostaglandins, prostacyclins, leukotrienes, resolvins, endocannabinoids, thromboxanes, epoxyeicosa-trienoic acids (EETs), hydroxyeicostetraenoic acids (HETEs), and CMX-020. The delivery system includes a vehicle comprising a purified docosahexaenoic acid (DHA) in triglyceride or ester form; a purified eicosapentaenoic acid (EPA) in triglyceride or ester form; a combination of DHA, EPA in either triglyceride or ester forms; or a modified DHA, EPA, or omega-3 fatty acid analog; and optionally, an antioxidant, a surfactant, a solubilizer, a stabilizer, a lubricant, or a pH/tonicity adjustment agent.