Read the side effects of Butorphanol as described in the medical literature. In case of any doubt consult your doctor or pharmacist.
Body as a Whole-
Loss of strength/lethargy, headache and sensation of heat.
Heart-
Irregular heartbeat, palpitations and dilatation of blood vessels.
Central Nervous System-
Nervousness, a floating feeling, headache, confusion, drowsiness, dizziness, in co-ordination anxiety, seizures, tremor and sleeplessness.
Skin-
Itching, sweating/clamminess, rash and hives.
Eye and ENT-
Nasal congestion, blurred vision, ear pain, inflammation of pharynx, stuffy nose, ringing in the ear and unpleasant taste.
GI-
Nausea, vomiting, loss of appetite, constipation, dry mouth and stomach pain.
Respiratory-
Bronchitis, cough, difficulty in breathing, nose bleed, nasal congestion, nasal irritation, sinusitis and upper respiratory tract infection.
Genitourinary-
Impaired urination.
Other Precautions : *Avoid prolonged usage and excess dosage.