Help : i want the most common side effect of lithium carbonate

Hi, Hope this helps you, I have cut and paste it from the prescribing information. It is hard to say what the most common is as it all depends on the serum levels of lithium, also, some side effects are very common but transient whilst establishing therapy and some are common with normal serum levels. Hope this makes sense.

The occurrence and severity of adverse reactions are generally directly related to serum lithium concentrations as well as to individual sensitivity to lithium and generally occur more frequently and with greater severity at higher concentrations. The most frequent adverse effects are the initial postabsorptive symptoms, believed to be associated with a rapid rise in serum lithium levels. They include gastrointestinal discomfort with mild nausea and diarrhoea, vertigo, muscle weakness and a dazed feeling, and frequently disappear after stabilisation of therapy.

The more common and persistent adverse reactions are fine tremor of the hands, fatigue, thirst and polyuria. These do not necessarily require reduction of dosage. Nausea is usually transient.

Adverse effects occurring at therapeutic serum lithium concentrations include anorexia, constipation or diarrhoea, epigastric discomfort, metallic taste, headache, vertigo, fine tremor, polyuria with polydipsia, oedema, hypermagnesaemia and hypercalcaemia. Reversible ECG changes, e.g. T wave flattening or inversion, cardiac arrhythmias and electroencephalogram (EEG) changes have been reported. Exacerbation of skin conditions (e.g. acne and psoriasis) and leucocytosis are relatively common side effects of lithium therapy. Significant weight gain is also observed in many patients receiving lithium.

Long-term administration of lithium carbonate may precipitate goitre requiring treatment with thyroxine, but this regresses when treatment is discontinued. Hair thinning and mild cognitive impairment may occur. Rarely, hyperthyroidism, hyperparathyroidism and nephrogenic diabetes insipidus have been reported.

Toxic effects may be expected at serum lithium concentrations over 1.5 mmol/L, although they can appear at lower concentrations. They call for immediate withdrawal of treatment and should always be considered very seriously. Signs of toxicity include increasing diarrhoea, vomiting, anorexia, severe abdominal discomfort, polyuria, muscle weakness, lethargy, ataxia, lack of coordination, tinnitus, blurred vision, dry mouth, dysgeusia and impotence/ sexual dysfunction, coorifice tremor (marked) of the extremities and lower jaw, muscle hyperirritability and twitching, agitation, hyper-reflexia, choreoathetoid movements, dysarthria, disorientation, psychosis, drowsiness, seizures and coma. At higher concentrations, ataxia, tinnitus, blurred vision, giddiness and increasing polyuria are seen. The following reactions appear to be related to serum lithium concentrations. Adverse reactions can occur in patients with serum concentrations within the therapeutic range (i.e. below 1.5 mmol/L or lower in the elderly).

I remember weight gain being a common side effect people experience.

Yes, hopefully you have a drug book, right?

And this really should have been covered in class.

You could also contact the company that makes lithium, they should have medical department that could help you and probably send you to the full prescribing information.

My drug guide says

headache, drowsiness, dizziness, tremors, confusion, fatigue, hypotension, dry mouth, anorexia, nausea, vomiting, diarrhea, acneiform rash, folliculitis and muscle weakness

tremors, peripheral edema secondary to sodium retention.

Know the therapeutic level== early signs of lithium toxicity-- increased tremors and edema.

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Thank you.

thanks alot nurses

but what we can do when the side effect turn to complication ?

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I would suggest that the patient may need to be changed to a different medication, there are other effective alternatives for treatment of bi polar disorder such as epilim