What is what does effacious mean?

Effacious means something that is capable of producing the desired effect or achieving the intended result. It refers to something that is effective, potent, or successful in producing a desired outcome. The term effacious is commonly used in medicine and healthcare to refer to drugs, treatments, or remedies that have the ability to cure or alleviate symptoms of the disease. An effacious drug or treatment is one that has been tested and proven to work in clinical trials. Overall, effacious refers to the ability to cause or produce a positive result.