Final answer:
The medication lithium is contraindicated in anorexia and bulimia due to its side effects on appetite and weight.
Step-by-step explanation:
The medication lithium is clearly contraindicated in anorexia and bulimia.
Lithium is commonly used as a mood stabilizer for conditions like bipolar disorder, but it can have side effects that affect appetite and weight. It can cause weight gain, increase appetite, and disrupt the body's natural hunger cues, which can exacerbate the disordered eating behaviors in individuals with anorexia or bulimia.
Therefore, caution should be exercised when prescribing medications to individuals with eating disorders, and alternative treatment options should be considered.