Medically reviewed by Kathleen Daly, MD Lithium side effects may include diarrhea, rash, hair thinning, weight gain, and more ...

The 79-year-old birdwatcher and conservationist tweeted he had been suffering from "lithium toxicity". He wrote: "Just so you know, I have been very ill most of this summer. Lithium toxicity.

Discontinue if signs of neurologic toxicity occur with antipsychotics (eg, haloperidol, risperidone, thioridazine). Xanthines, acetazolamide, urea, alkalinizing agents may reduce serum lithium levels.

Discontinue if signs of neurologic toxicity occur with antipsychotics (eg, haloperidol, risperidone, thioridazine). Xanthines, acetazolamide, urea, alkalinizing agents may reduce serum lithium levels.