PRECAUTIONS: Before using butorphanol, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients (such as benzethonium chloride), which can cause allergic reactions or other problems. Talk to your pharmacist for more details.Before using this medication, tell your doctor or pharmacist your medical history, especially of: abdominal problems (e.g., gallbladder disease, pancreatitis), adrenal gland problems (e.g., Addison's disease), brain disorders (e.g., seizures, head injury, tumor, increased intracranial pressure), heart problems (e.g., irregular heartbeat, chest pain, recent heart attack), high blood pressure, kidney disease, liver disease, breathing problems (e.g., asthma, chronic obstructive pulmonary disease-COPD), mental/mood disorders (e.g., toxic psychosis), a certain spinal problem (kyphoscoliosis), stomach/intestinal problems (such as diarrhea due to infection, paralytic ileus), personal or family history of regular use/abuse of drugs/alcohol (especially narcotics), difficulty urinating (e.g., due to enlarged prostate or urethral stricture), underactive thyroid (hypothyroidism).This drug may make you dizzy or drowsy. Do not drive, use machinery, or do any activity that requires alertness until you are sure you can perform such activities safely. Avoid alcoholic beverages.To lower your risk of dizziness and lightheadedness, get up slowly when rising from a sitting or lying position.Older adults may be more sensitive to the side effects of this drug, especially confusion, dizziness, drowsiness, and slow/shallow breathing.Before using this medication, women of childbearing age should talk with their doctor(s) about the risks and benefits. Tell your doctor if you are pregnant or if you plan to become pregnant. During pregnancy, this medication should be used only when clearly needed. It may slightly increase the risk of birth defects if used during the first two months of pregnancy. Also, using it for a long time or in high doses near the expected delivery date may harm the unborn baby. To lessen the risk, take the smallest effective dose for the shortest possible time. Tell the doctor right away if you notice any symptoms in your newborn baby such as slow/shallow breathing, irritability, abnormal/persistent crying, vomiting, or diarrhea.This drug passes into breast milk. Consult your doctor before breast-feeding.
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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