I think the answer to that question is context-sensitive. In other words, when contemplating an infusion of lipid to prevent progression of mild symptoms, such potential relative contraindications (e.g., pancreatitis, hyperlipidemia) would weigh against this treatment. BUT when the patient is receiving chest compressions it's hard to think of any scenario that would preclude use of lipid as a potential life-saving therapy. By the way, I have no idea whether something like egg allergy might be a problem....nevertheless if I were faced with a very symptomatic, toxic patient, such a theoretical consideration would be trumped by the potential for successful recovery with lipid.