WELLBUTRIN XL can have side effects. Not all side effects reported for WELLBUTRIN XL are included in this leaflet. Should your general health worsen or if you experience any untoward effects while taking WELLBUTRIN XL, please consult your doctor, pharmacist or other health care provider for advice.
Seizures (fits): Approximately 1 in every 1 000 people taking the maximum dose of WELLBUTRIN XL is at risk of a seizure (fit). The chance of this happening is higher if you take too much, if you take certain medicines in combination with WELLBUTRIN XL, or if you are at higher than usual risk of seizures (fits). If you are worried, talk to your doctor. If you have a fit, tell your doctor when you have recovered. Don’t take any more tablets.
Allergic reactions: Some people may get allergic reactions to WELLBUTRIN XL. These include:
- red skin or rash (like nettle rash), blisters or itchy lumps (hives) on the skin. Some skin rashes may need hospital treatment, especially if you also have a sore mouth or sore eyes
- unusual wheezing or difficulty in breathing
- swollen eyelids, lips or tongue
- pains in muscles or joints
- collapse or blackout.
If you have any signs of an allergic reaction, contact a doctor at once. Don’t take any more tablets. Allergic reactions can last a long time. If your doctor prescribes something to help with allergic symptoms, make sure you finish the course.
Lupus skin rash or worsening of lupus symptoms: Lupus is an immune system disorder affecting the skin and other organs. Very rarely (up to 1 in 10,000) people may experience lupus skin rash or worsening of lupus symptoms while taking WELLBUTRIN XL. Symptoms include:
- lupus flares
- skin rash or lesions (particularly on sun-exposed areas)
➔ If you experience lupus skin rash or worsening of lupus symptoms contact your doctor straight away, as it might be necessary to stop the treatment.
Disturbed sleep: The most common side effect in people taking WELLBUTRIN XL is difficulty sleeping. Make sure you take your tablet early in the morning.
Other common side effects:
- headache, fever, dizziness, itching, sweating, skin rash, hives
- shakiness, tremor, chest pain
- feeling anxious or, agitated
- dry mouth, tummy pain or other upsets (feeling sick, vomiting, constipation), changes in the taste of food, loss of appetite
- changes in blood pressure, flushing
- ringing in the ears, visual disturbances.
Uncommon side effects:
- weakness, tiredness
- feeling depressed
- feeling confused
- difficulty concentrating
- raised heart rate
- weight loss.
The following side effects may occur:
- seizures (fits)
- palpitations, fainting
- rash with pus filled pimples/blisters (acute generalised exanthematous pustulosis)
- lupus skin rash or worsening of lupus symptoms (see the beginning of this section)
- uncontrolled movements, twitching, muscle stiffness, problems with walking or coordination
- stuttering
- feeling restless, irritable, hostile, aggressive or paranoid, feeling unreal or strange (depersonalisation), sensing or believing things that are not there (hallucinations/delusions), feeling of panic (panic attack), strange dreams, tingling or numbness, loss of memory.
- raised liver enzymes, yellowing of skin or the whites of your eyes (jaundice), hepatitis
- severe allergic reactions; rash together with joint and muscle pains, worsening of psoriasis
- changes in blood sugar levels
- urinating more or less than usual, uncontrollable urination
- decrease in blood sodium (hyponatraemia).
Talk about any troublesome side effects with your doctor or pharmacist. If you notice any side effects not mentioned in this leaflet, please tell your doctor or pharmacist.
Thoughts of suicide or worsening of your condition: If you are depressed you can sometimes have thoughts of harming or killing yourself. These thoughts may be increased when first starting antidepressants. These medicines can take time to work - usually about two weeks, but sometimes longer (see “Warnings and precautions”).