ADVERSE REACTIONS
The following adverse reactions have been reported and, within each category (body system), are listed in order of decreasing severity.
Digestive: Gastric bleeding, ulceration, gastritis, diarrhea and cramping, nausea, vomiting.
Reproductive: Gynecomastia (see
Precautions
), inability to achieve or maintain erection, irregular menses or amenorrhea, postmenopausal bleeding, breast pain. Carcinoma of the breast has been reported in patients taking spironolactone but a cause and effect relationship has not been established.
Hematologic: Leukopenia (including agranulocytosis), thrombocytopenia.
Hypersensitivity: Fever, urticaria, maculopapular or erythematous cutaneous eruptions, anaphylactic reactions, vasculitis.
Metabolism: Hyperkalemia, electrolyte disturbances (see
Warnings
and
Precautions
).
Musculoskeletal: Leg cramps.
Nervous system /psychiatric: Lethargy, mental confusion, ataxia, dizziness, headache, drowsiness.
Liver / biliary: A very few cases of mixed cholestatic/hepatocellular toxicity, with one reported fatality, have been reported with spironolactone administration.
Renal: Renal dysfunction (including renal failure).
Skin: Stevens-Johnson Syndrome (SJS), toxic epidermal necrolysis (TEN), drug rash with eosinophilia and systemic symptoms (DRESS), alopecia, pruritus.
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