In determining whether a trademark infringes another registered trademark under section 8(1) of the Trade Marks Act, the court must assess whether the marks are identical or so nearly resembling each other as to be likely to deceive or cause confusion. This assessment requires consideration of the totality of the surrounding circumstances, not merely phonetic similarity of the word marks in isolation. The test is whether an ordinary person of average intelligence and proper eyesight would be likely to be deceived or confused. Relevant factors include: visual appearance of the marks and packaging, colors, fonts, descriptive words, the nature of the goods, manner of sale, and any distinctive features. Where products are sold in pharmacy settings requiring oral requests rather than self-service, and where there are sufficient visual and descriptive distinctions in packaging, phonetic similarity alone is insufficient to establish likelihood of confusion or deception. For purposes of suing the Zimbabwe Revenue Authority, the proper party is ZIMRA itself as a body corporate, not the Commissioner General.