Which of the following should patients under 6 months avoid?

Patients under 6 months should avoid Ciprodex, which is a combination medication that contains an antibiotic (ciprofloxacin) and a corticosteroid (dexamethasone). The use of ciprofloxacin in young children is largely contraindicated due to the potential risks it poses to developing joints and overall bone health. Studies have indicated that fluoroquinolone antibiotics, such as ciprofloxacin, can lead to musculoskeletal issues in pediatric populations, which is why its use is typically restricted to older children and adults.

In contrast, Tylenol is frequently used to manage fever and pain in infants, and Benadryl, while it can be used with caution in children for allergic reactions, is not typically recommended for infants under 6 months without consulting a healthcare provider due to the potential for adverse effects. Amoxicillin may be prescribed to infants under 6 months when necessary, such as for bacterial infections, subject to professional medical advice. Thus, the specific concern surrounding Ciprodex makes it the clear choice for what should be avoided in patients under 6 months.