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Purpura fulminans is an acute illness characterized by rapidly progressive dermal vascular thrombosis, leading to hemorrhagic necrosis of the skin. Here, we describe the case of a healthy woman who developed acute disseminated intravascular coagulation (DIC) with purpura fulminans after intramuscular administration of a single dose of ketorolac. Review of literature showed only one case description of non-steroidal anti-inflammatory drug (diclofenac)-related purpura fulminans with DIC.

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Nitrofurantoin is a synthetic derivative of imidazolinedione, used to treat uncomplicated urinary tract infections. It acts by inhibiting bacterial DNA, RNA and cell wall protein synthesis. It is used prophylactically as a urinary anti-infective agent against most gram-positive organism and for long-term suppression of infections. Nitrofurantoin-associated pulmonary injuries occur in 1% of patients, presenting with dyspnoea and dry cough, and it can mimic interstitial lung disease. We present a case of an 81-year-old woman with shortness of breath and cough 3 days after initiation of nitrofurantoin. CT of the chest revealed bilateral pleural effusion and extensive pulmonary interstitial prominence, suggesting pulmonary fibrosis. According to the Naranjo Adverse Drug Reaction Probability Scale score of 6, it was determined that nitrofurantoin was the probable cause, and immediate cessation of the medication showed a marked clinical improvement and resolution after 10 days.