Ointment Mercurial refers to a medicinal cream that contains Mercurial as its primary ingredient. The term Mercurial is often used to describe something that is volatile, erratic, or unpredictable. Therefore, some antonyms for Ointment Mercurial could be reliable, stable, constant, or consistent. Such creams provide a permanent solution to skin problems and do not have any harmful side effects. In contrast, Ointment Mercurial can be dangerous if misused, and it is best to avoid such creams if possible. Other antonyms that come to mind include non-toxic, non-threatening, non-fluctuating, and non-volatile. These antonyms describe a product that is safe, secure, and dependable, which is essential when it comes to medicinal products.