psychiatric medication
4 interactions related to psychiatric medication
yerba mate + maois
Yerba mate is a caffeine-rich infusion. On a non-selective MAOI (phenelzine, tranylcypromine, isocarboxazid), the enzyme that normally clears tyramine and tempers sympathetic tone is blocked, so a high caffeine and methylxanthine load plus any tyramine the brew carries can amplify the pressor response and push blood pressure into dangerous territory. The yerba-mate-specific risk is extrapolated from documented caffeine-plus-MAOI cases, not from direct mate studies.
lithium + caffeine
Caffeine increases the kidneys' clearance of lithium, so a steady caffeine habit is effectively built into your lithium dose. The risk is sudden change: stopping caffeine abruptly can push lithium levels up toward the toxic range, while sharply increasing caffeine can lower levels and let mood symptoms return.
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.
energy drinks + lithium
The caffeine in energy drinks increases how fast the kidneys clear lithium, so swings in caffeine intake can shift serum lithium in either direction. Heavy or rising caffeine intake can pull lithium toward the lower, less effective end of its narrow range, while abruptly cutting or stopping caffeine while on a stable lithium dose can push serum lithium up into the toxic range. Because lithium has one of the narrowest therapeutic windows in psychiatry, the variability of energy drink use is the real hazard.