butorphanol - injection, Stadol (cont.)
SIDE EFFECTS: Drowsiness, dizziness, blurred vision, flushing, lightheadedness, headache, nausea, vomiting, constipation, dry mouth, and sweating may occur. Pain, redness, and burning at the injection site may also occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly.To prevent constipation, maintain a diet adequate in fiber, drink plenty of water, and exercise. If you become constipated while using this drug, consult your pharmacist for help with selecting a laxative (e.g., stimulant-type with stool softener).Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.Butorphanol can cause withdrawal reactions in people who are physically dependent on narcotics. The seriousness of the withdrawal symptoms depends on the level of dependence and the dose of butorphanol. Tell your doctor immediately if you develop symptoms such as anxiety, agitation, trouble sleeping, sweating, stomach cramps, and diarrhea.Tell your doctor immediately if any of these unlikely but serious side effects occur: mental/mood changes (e.g., anxiety, confusion, hallucinations).Tell your doctor immediately if any of these rare but very serious side effects occur: difficult/slow/shallow breathing, fast/slow/irregular heartbeat, seizures, severe stomach/abdominal pain, change in the amount of urine.A very serious allergic reaction to this drug is rare. However, seek immediate medical attention if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.In the US -Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.
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