I hold a drug store licence. Can I sell products that look like medicines in their packaging but are described as “health supplements”?

This is a grey area that requires very careful handling. The key is how the product is classified. If a product, despite having packaging (such as capsules or tablets) and marketing similar to those of medicines, is legally classified as a “food” or “health food” because of its ingredients and claimed effects, you may in theory sell it in a pharmacy because it is not regulated by the Pharmacy and Poisons Ordinance. However, if the product contains controlled Western medicine or Chinese medicine ingredients, or its label or advertising expressly or implicitly claims to treat, diagnose or prevent disease, it is highly likely to be classified by the Department of Health or the Chinese medicine regulatory office as a “pharmaceutical product” or “proprietary Chinese medicine”. In that case, selling it without the relevant licence, such as a Pharmacy licence or a proprietary Chinese medicine retailer licence, would be unlawful.