A nurse is teaching a client who has a new prescription for dimenhydrinate. Which of the following instructions should the nurse include in the teaching?

Robitussin A-C contains codeine, which is an opioid antitussive that can have sedating effects. One of the major disadvantages of using this medication is the potential for drowsiness as a side effect. This can impair the client's ability to perform tasks that require alertness and can interfere with daily activities.
The other options listed are not the major disadvantage of antitussive therapy with Robitussin A-C:
The medication is irritating to the bronchial tree: Robitussin A-C is primarily used as an antitussive (cough suppressant) rather than for its effects on the bronchial tree. While it may have some mild irritant properties due to certain ingredients, it is not considered a major disadvantage of this medication.
The client may use the medication for 14 days: The duration of use for Robitussin A-C is typically determined by the healthcare provider based on the client's condition. While prolonged use of antitussives is generally not recommended without medical supervision, the duration of use is not considered the major disadvantage of this medication.
The medication is very expensive: The cost of medication can vary, and while cost may be a consideration for some individuals, it is not considered the major disadvantage of Robitussin
A-C specifically. The major disadvantage relates more to the potential for drowsiness caused by the medication.

White coating in the mouth: A white coating in the mouth could be a sign of a fungal infection such as oral thrush. Fluticasone, which is a corticosteroid, can increase the risk of developing fungal infections. Therefore, the nurse should instruct the client to report any signs of oral thrush or other unusual changes in the mouth, such as white patches or discomfort, to the provider.
Prompt identification and treatment of oral thrush are necessary to prevent its progression and ensure effective management of the client's condition.
Dry oral mucous membranes: Dry oral mucous membranes are not typically associated with fluticasone/salmeterol use. However, if the client experiences persistent or severe dryness in the mouth or any other unusual oral symptoms, it should be reported to the provider. Dry mouth can sometimes occur as a side effect of medications or indicate other underlying issues that need to be addressed.
Sedation: Sedation is not a common side effect of fluticasone/salmeterol. If the client experiences excessive drowsiness or sedation that interferes with their daily activities, it may be important to report this to the provider. While sedation is not a typical adverse effect of this medication, individual responses can vary, and it is essential to ensure appropriate monitoring and management.
Increased appetite is not typically associated with fluticasone/salmeterol use. It is not a commonly reported adverse effect of the medication. However, if the client experiences significant and unexplained changes in appetite that are concerning or persistent, it may be worth mentioning to the provider during a follow-up appointment or as part of ongoing monitoring.