<p>SSRIs are less sedating and have fewer antimuscarinic and cardiotoxic effects than tricyclic antidepressants. Side-effects of the SSRIs include gastrointestinal effects (dose-related and fairly common include nausea, vomiting, dyspepsia, abdominal pain, diarrhoea, constipation), anorexia with weight loss (increased appetite and weight gain also reported) and hypersensitivity reactions including rash, urticaria, angioedema, anaphylaxis, arthralgia, myalgia, and photosensitivity; other side-effects include dry mouth, nervousness, anxiety, headache, insomnia, tremor, dizziness, asthenia, hallucinations, drowsiness, convulsions, galactorrhoea, sexual dysfunction, urinary retention, sweating, hypomania or mania, movement disorders and dyskinesias, visual disturbances.</p>