Complex B Side effects
Mild upset stomach or flushing may occur. These effects are usually temporary and may disappear as your body adjusts to this product. If any of these effects persist or worsen, contact your doctor or pharmacist promptly.
If your doctor has directed you to take this medication, remember that 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.
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 or at www.fda.gov/medwatch.
In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.
Due to its benzyl alcohol content, doxapram injection is contraindicated in neonates.
Complex B should not be used in patients with epilepsy or other convulsive disorders.
Complex B is contraindicated in patients with mechanical disorders of ventilation such as mechanical obstruction, muscle paresis, flail chest, pneumothorax, acute bronchial asthma, pulmonary fibrosis or other conditions resulting in restriction of chest wall, muscles of respiration or alveolar expansion.
Complex B is contraindicated in patients with evidence of head injury or cerebral vascular accident and in those with significant cardiovascular impairment, severe hypertension, or known hypersensitivity to the drug or any of the injection components.
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Information checked by Dr. Sachin Kumar, MD Pharmacology