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- Gut disturbances such as nausea, vomiting, diarrhoea
- Shaking, usually of the hands (tremor)
- Thirst
- Increased production of urine (polyuria)
- Weight gain
- Excessive fluid retention in the body tissues, resulting in swelling (oedema)
- Muscle weakness
- Dizziness
- Dazed feeling
- Decreased kidney function
- Underactivity of the thyroid gland (hypothyroidism) - this may make you feel very tired or slow and you may notice the cold more, tell your doctor if you experience this
- Worsening of psoriasis
- Lithium toxicity if your lithium level is too high - for warning symptoms see the warning above
- Abnormal heart rhythms
- Sexual problems
- Memory problems
The side effects listed above may not include all of the side effects reported by the drug's manufacturer.
How can this medicine affect other medicines?
It is important to tell your doctor or pharmacist what medicines you are already taking, including those bought without a prescription and herbal medicines, before you start treatment with this medicine. Similarly, check with your doctor or pharmacist before taking any new medicines while taking this one, to ensure that the combination is safe.
The following medicines may increase the level of lithium in the blood, causing an increased risk of lithium side effects or toxicity:
- ACE inhibitors, such as lisinopril, captopril, enalapril
- angiotensin II receptor antagonists, such as losartan, candesartan, valsartan
- diuretics, such as bendroflumethiazide, furosemide
- metronidazole
- non-steroidal anti-inflammatory drugs (NSAIDs), such as indomethacin, diclofenac, ibuprofen, celecoxib
- tetracycline antibiotics, such as tetracycline, doxycycline.
There may be an increased risk of side effects unrelated to the lithium level if the following medicines are taken with lithium:
- antipsychotic medicines, eg clozapine, thioridazine, flupentixol, haloperidol
- calcium channel blockers, eg diltiazem, verapamil
- carbamazepine
- maprotiline
- methyldopa
- phenytoin
- tricyclic antidepressants, eg amitriptyline
- SSRI antidepressants, eg fluoxetine, fluvoxamine.
The following medicines may decrease the blood level of lithium, making it less effective:
- antacids that contain sodium, eg sodium bicarbonate
- theophylline.
Other medicines containing the same active ingredient
| Li-liquid | Liskonum | Priadel liquid |
| Priadel tablets |