The parasympathetic and sympathetic components of the autonomic nervous system (ANS) differ in their structure and in their function, but the two systems have some important features in common.he cell bodies of the presynaptic neurons of both the parasympathetic and sympathetic systems are located within the central nervous system. These presynaptic autonomic neurons synapse only with postsynaptic autonomic neurons.
Hydrocodone itself does not cause possible liver damage, but the actual acetaminophen in the pill is what can cause liver damage in high doses. Typically one must consume more then 8,000 mg in a 24 hour period consistently over a period of time to cause damage.cetaminophen is processed by the liver and it takes about 4 hours for the liver to break it down. Taking more then the recommended dosage can cause the liver hardship. Granted going over a few times won't necessarily cause permanent damage, but consistent use may.
Most of the cases of liver injury are associated with the use of acetaminophen at doses that exceed 4000 milligrams per day, and often involve more than one acetaminophen-containing product. 1  VICODIN, VICODIN ES, and VICODIN HP should not be used if you are allergic to hydrocodone or acetaminophen.