For fifty years the damage from dominantly inherited porphyrias (PCT, AIP, HCP, VP, EPP) has been noted to trigger transient or sustained autoantibodies evolving to conditions such as lupus erythematosus, rheumatoid arthritis, scleroderma or Sjogren's disease.Common triggers include: Drugs (barbiturates and sulfonamide antibiotics, but tranquilizers, birth control pills and sedatives also may caus