Very common (may affect more than 1 in 10 people):
difficulty sleeping, dizziness, sleepiness, headache, diarrhoea, feeling sick, dry mouth, problems ejaculating, tiredness.

Common (may affect less than 1 in 10 people):
depression, feeling strange, anxious, agitated or nervous, decreased sexual interest, nightmares, teeth grinding
sore throat, loss of appetite or increased appetite
muscle tension or pain, numbness and tingling, shaking, abnormal taste, lack of attention
visual disturbance, ringing in ears
chest pain, palpitations, hot flush, yawning
abdominal pain, vomiting, constipation, upset stomach, flatulence
sexual or erectile dysfunction
rash or acne, increased sweating.

Uncommon (may affect less than 1 in 100 people):
hallucination, feeling too happy, lack of caring, abnormal thoughts
convulsions (fits), memory loss, speech disorder, involuntary muscle contractions, dizziness while standing up, migraine
fast heartbeat, high blood pressure, flushing, nosebleed
purple spots on skin, eye swelling, hair loss, cold sweat, dry skin, hives
night-time urination, unable to urinate, increase in urination, increase in frequency of urination, problem urinating
inflammation of the oesophagus, difficulty swallowing, increased saliva, tongue disorder, burping, haemorrhoids
joint pain, swelling or stiffness, muscular weakness or twitching, back pain
chest cold, runny nose, ear pain
vaginal bleeding, female sexual dysfunction, breast pain, cystitis
feeling generally unwell, chills, fever, weakness, thirst, weight decreased or increased.

Rare (may affect less than 1 in 1000 people):
abnormal tissue masses (growths), enlarged lymph nodes (swollen glands), low blood sugar or high cholesterol levels, intestinal problems, ear infection
drug dependence, psychosis (loss of contact with reality), feeling paranoid, suicidal thoughts, aggression, sleep walking, premature ejaculation
coma, abnormal movements or difficulty moving, increased sensations
increased pressure inside the eye (glaucoma), tear problems, spots in front of eyes, double vision, light hurting the eyes, blood in the eyes, enlarged pupils
heart problems including heart attack, slow heart beat and poor circulation
closing up of throat, breathing problems, difficulty talking, hiccups
bloody stools, sore or ulcerated mouth or tongue, problems with the teeth
abnormal hair texture or skin odour, bone disorder
decreased urination, urinary incontinence, urinary hesitation
abnormally heavy or prolonged menstruation, dry vaginal area, red painful penis and foreskin, genital discharge or abnormal semen, prolonged erection, production of breast milk
hernia, injection site scarring, drug tolerance decreased, difficulty walking, increase in liver enzymes, widening of blood vessels
cases of suicidal ideation and suicidal behaviours have been reported during sertraline therapy or early after treatment discontinuation