Which statement is acceptable for advertising an approved arthritis medication?

The statement "Product X is effective for the treatment of arthritis" is acceptable for advertising an approved arthritis medication because it accurately reflects the product's intended use and provides a factual claim based on its approved labeling. The term "effective" can be supported by clinical trial data demonstrating that the medication achieves its primary objectives in managing symptoms of arthritis.

In contrast, claims such as "cures arthritis completely" imply a level of efficacy that is usually not substantiated, as arthritis is often a chronic condition that can be managed but not necessarily cured. Similarly, asserting that a product is "the best arthritis medication available" introduces a subjective comparison that lacks objective support and can mislead consumers. Finally, claiming "Product X has no side effects at all" is misleading, as all medications have potential side effects, and it's important to provide truthful, balanced information in pharmaceutical advertising. Therefore, the first statement remains compliant with advertising regulations and expectations for truthful representation in the promotion of approved drugs.