Butodol 2mg Injection is a pain-relieving medicine used to treat moderate to severe pain. It is usually administered as a pre-anesthetic medicine before a surgical procedure, and for relief of pain during labor. It is usually given in conditions where other alternative treatments are inadequate. Butodol 2mg Injection is generally administered by a healthcare professional. You should not self-administer this medicine at home. The dose will depend on what you are taking it for and how well it helps your symptoms. The most common side effects of this medicine include injection site reactions (such as pain, redness, and swelling), headache, dizziness, sleepiness, vomiting, nausea, and constipation. If any of these side effects persist or get worse, you should let your doctor know. Your doctor may be able to suggest ways of preventing or reducing the symptoms.