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Select the correct statement from the ones given below?
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- Barbiturates when given to criminals make them tell the truth
- Morphine is often given to persons who have undergone surgery as a pain killer
- Chewing tobacco lowers blood pressure and heart rate
- Cocaine is given to patients after surgery as it stimulates recovery
Correct Option: B
Morphine is potent opioid analgesic that is often given to persons (who have undergone surgery) as a pain killer. It is mainly used to relieve severe and persistent pain. It is administrated by mouth, injection or suppositories.