The client diagnosed with Parkinson's disease has been taking carbidopa/levodopa for two years. The client states symptoms are worsening. The health care provider added the prescription donepezil to the client's daily routine. Which information should the nurse teach the client?

Benzodiazepines are medications that work in the central nervous system and are used for a variety of medical conditions such as anxiety, seizures, and alcohol withdrawal ². They work by blocking excessive activity of nerves in the brain and other areas in the central nervous system ². While benzodiazepines can be effective in treating these conditions, they are not a cure and should be used as part of a comprehensive treatment plan that may include counseling or other forms of therapy ¹.
Option A is not correct because benzodiazepines do not require frequent blood counts to avoid adverse effects.
Option B is not correct because the decision to stop a medication should be made by a healthcare provider based on an individual's response to treatment.
Option D is not correct because benzodiazepines are not intended for long-term use and should be used for the shortest possible time to achieve therapeutic goals ².

An accidental administration of a dose greater than recommended can result in toxicity. This means that the medication reaches harmful levels in the body and can cause damage to organs or other adverse effects.
Option A is incorrect because an overdose is more likely to increase side effects rather than decrease them.
Option B is incorrect because a lowered therapeutic threshold means that a lower dose of medication is needed to achieve the desired effect, which is not related to an overdose.
Option D is incorrect because an overdose can increase the effectiveness of the medication to dangerous levels, rather than decrease it.