Catephen is a topical ointment primarily used for the treatment of skin conditions such as warts, including those found on the hands, feet, elbows, and knees. It is derived from green tea leaves, containing a specific extract known as sinecatechins, which is believed to have antiviral properties and helps in clearing warts by stimulating the body's immune system to fight the human papillomavirus (HPV) that causes warts. Catephen is applied directly to the affected area and is recommended for use in patients over the age of 18. It is important to follow the application instructions carefully and consult a healthcare provider for proper use and to determine if Catephen is the right treatment option.