Final answer:
Patients taking montelukast should avoid over-the-counter products containing aspirin or NSAIDs such as ibuprofen and naproxen as they may interfere with the medication or worsen asthma symptoms.
Step-by-step explanation:
When taking montelukast (Singulair), it is important for patients to avoid certain over-the-counter products that may interfere with the medication's effectiveness or cause adverse effects. The nurse should instruct the patient to avoid over-the-counter products containing aspirin or non-steroidal anti-inflammatory drugs (NSAIDs) like ibuprofen and naproxen.
These medications can potentially increase the risk of bleeding, and for some people, may worsen asthma symptoms which montelukast is used to treat. It is always recommended that before starting any new medication, including over-the-counter products patients should consult with their healthcare provider to ensure there are no interactions with montelukast.