What is the difference between a prescription drug and an anti-depressant?

The two medications, two anti-depressants, will be sold in the same way: on a physician's prescription and purchased from a pharmacist. Although the nature of the business is identical, the fact remains that in the field of prescription medications, the risk of confusion is lessened since the nature of the transaction is such that the products will be delivered by meticulous professionals accustomed to making distinctions between the names of various products (Novopharm Limited v. Nu-Pharm Inc., supra). This factor favours the respondent. 5. Degree of similarity of marks