Which vitamin should a client increase while taking phenytoin to prevent deficiency?

Phenytoin, an anticonvulsant medication, affects the metabolism of vitamins and can lead to deficiencies. Specifically, it can interfere with the metabolism of Vitamin D, which is crucial for maintaining bone health by helping the body absorb calcium. When patients are on phenytoin, they may experience changes in how their body processes Vitamin D, potentially leading to a deficiency that can increase the risk of bone-related issues such as osteopenia or osteoporosis.

Therefore, it is essential for clients taking phenytoin to ensure they are getting adequate amounts of Vitamin D to counteract these effects and support their overall bone health. Ensuring sufficient levels of Vitamin D also aids in the absorption of calcium, thereby promoting stronger bones, which is particularly important for individuals on long-term phenytoin therapy.