How do you define "pharmaceutical equivalence"?

Pharmaceutical equivalence is defined as the condition in which two products contain the same active ingredient, are provided in the same dosage form, and have the same strength. This definition highlights the importance of the active ingredient's identity and the consistency in form and potency, ensuring that the products can be expected to have the same therapeutic effect in patients.

When evaluating the other options, having different active ingredients would not satisfy the criteria for being considered equiivalent, as the therapeutic effects and safety profiles could differ significantly. Products marketed by different companies or those that are similar in price do not necessarily pertain to their pharmaceutical equivalence, as these factors do not address the essential criteria of containing the same active ingredient and dosage specifications. Thus, the definitive understanding of pharmaceutical equivalence centers around the sameness in active ingredients and dosage, which is aptly captured in the correct response.