Final answer:
Narcotics place the client at increased risk for constipation.
Step-by-step explanation:
The medication that places the client at increased risk for constipation is narcotics. Narcotic medications, such as opioids, are known to slow down the movement of the gastrointestinal tract, leading to constipation. These medications affect the receptors in the intestines, making it harder for stool to pass through.