Which of the following drug classes is NOT typically found in formularies?

Non-steroidal anti-inflammatory drugs (NSAIDs) are commonly included in formularies due to their widespread use and well-established efficacy for managing pain and inflammation. Formularies are designed to provide a comprehensive listing of medications that are deemed safe, effective, and cost-effective for therapeutic use within a particular health care system or insurance plan.

In contrast, while the other drug classes—antidepressants, antineoplastics, and anticonvulsants—are also essential for treating various medical conditions, they may be associated with more specialized treatment protocols or considerations that can lead to their selective inclusion based on specific medical necessity evaluations. Formularies often reflect the needs of the patient population they serve, but NSAIDs are foundational treatments for many common conditions, contributing to their ubiquitous presence in formularies.

This context highlights the essential role NSAIDs perform in primary care and the typical formulary structures that prioritize these drugs over more specialized classes like antineoplastics and anticonvulsants, which might sometimes be excluded or included under stricter conditions based on clinical guidelines and practice standards.