Kenacort 40 mg Injection 5 ml is used to treat the pain of osteoarthritis (OA). It contains triamcinolone, which belongs to the class of corticosteroids. It works by blocking the production of certain chemical messengers in the body that cause inflammation (redness and swelling) and allergies. Thus, it helps reduce swelling, pain and discomfort. Common side effects of Kenacort 40 mg Injection 5 ml are sore throat, runny nose, sinusitis, dizziness, nervousness, cough, contusions (bleeding under the skin) and injection site reactions