Vasodilation
Due to increased histamine and kinin production
Cutaneous flushing
Hypotension, vasodilatory shock
Diarrhea
Bronchospasm
Cardiac valvular lesions
Due to serotonin-stimulated fibroblast growth/fibrogenesis
Can cause tricuspid or pulmonary regurgitation or stenosis, right heart failure more common than left
Due to increased histamine and kinin production
Cutaneous flushing
Hypotension, vasodilatory shock
Due to serotonin-stimulated fibroblast growth/fibrogenesis
Can cause tricuspid or pulmonary regurgitation or stenosis, right heart failure more common than left
Carcinoid syndrome
Allergic reaction/urticaria
Hemochromatosis
Anaphylaxis
Amyloidosis
Angioedema
Celiac disease
Anxiety attack