Which of the following drugs is commonly recommended as a treatment for infant colic?

Simethicone is often utilized as a treatment for infant colic due to its ability to reduce gas and bloating in the gastrointestinal tract. Infant colic is characterized by excessive crying in infants, often associated with discomfort from gas or trapped air. Simethicone acts by lowering the surface tension of gas bubbles, allowing them to coalesce and be expelled more easily, thereby providing relief from the symptoms associated with colic.

This mechanism makes simethicone a common recommendation in clinical practice for managing colic symptoms. It's important to note that while some other options may have roles in gastrointestinal discomfort or related issues, they are not specifically recommended for colic. Probiotics, for instance, have been studied for various gastrointestinal conditions and may show some benefits in certain populations, but they are not first-line treatments for colic. Lactulose is primarily a laxative and not indicated for colic. Omeprazole is a proton pump inhibitor used primarily for acid-related conditions and not as a treatment for colic.