lithium toxicity
2 interactions related to lithium toxicity
alcohol + lithium
Lithium has a narrow therapeutic window and is cleared almost entirely by the kidneys. Alcohol promotes urination and dehydration, which can reduce renal lithium clearance and push serum lithium levels higher — toward the toxic range (tremor, confusion, unsteadiness, vomiting). Alcohol also independently destabilizes mood in bipolar disorder, and its early intoxication signs can mask the early warning signs of lithium toxicity.
chocolate + lithium
Chocolate contains caffeine, a mild diuretic that increases how much lithium the kidneys clear. Because lithium has a narrow therapeutic window, a large, sustained change in caffeine intake can nudge serum lithium levels — adding a steady caffeine habit can lower them, while abruptly stopping one can raise them. Chocolate is a relatively minor caffeine source compared with coffee or tea, so the effect matters most for heavy, consistent chocolate consumers who make a sudden change.