Chap. 10 analgesic drugs Flashcards
acute pain
pain that is sudden in onset, usually subsides when treated, and typically occurs over less than a 6-week period
addiction
chronic, neurobiologic disease whose development is influenced by genetic, psychosocial and environmental factors (same as psychological dependence)
adjuvant analgesic drugs
drugs that are added for combined therapy w/ a primary drug and may have additive or independent analgesic properties, or both
agonist
a substance that binds to a receptor and causes a response
agonists-antagonists
substances that bind to a receptor and cause a partial response that is not as strong as that caused by an agonist (partial agonist)
analgesic ceiling effect
what occurs when a given pain drug no longer effectively controls a patient’s pain despite the admin of the highest safe doses
analgesics
medications that relieve pain w/o causing loss of consciousness (painkillers)
antagonist
drug that binds to a receptor and prevents (blocks) a response
breakthrough pain
pain that occurs between doses of pain medication
cancer pain
pain resulting from any of a variety of causes related to cancer and/or the metastasis of cancer
central pain
pain resulting from any disorder that causes central nervous system damage
chronic pain
persistent or recurring pain that is often difficult to treat. includes any pain lasting longer than 3-6 months, pain lasting longer than 1 month after healing of an acute injury, or pain that accompanies a non-healing tissue injury
deep pain
pain that occurs in tissues below skin level; opposite of superficial pain
gate theory
theory of pain transmission and pain relief; gate model explaining how impulses from damaged tissues are sensed in brain
narcotics
legal term established under Harrison Narcotic Act of 1914; currently – used to referred to any medically used controlled substances and in legal setting to refer to any illicit or “street” drug
*narcos on netflix is a sick show just so ya know
neuropathic pain
pain that results from a disturbance of function or pathologic change in a nerve
nociception
processing of pain signals in the brain that gives rise to the feeling of pain
nociceptors
subclass of sensory nerves (A and C fibers) that transmit pain signals to the CNS from other body parts
nonopioid analgesics
analgesics that are not classified as opioids
nonsteroidal antiinflammatory drugs (NSAIDs)
large, chemically diverse group of drugs that are analgesics and also possess antiinflammatory and antipyretic activity by are not corticosteroids
opioid analgesics
synthetic drugs that bind to opiate receptors to relieve pain
opioid naive
describes pts who are receiving opioid analgesics for the first time and who therefore are not accustomed to their effects
opioid tolerance
normal physiologic condition that results from long-term opioid use, in which larger doses of opioids are required to maintain the same level of analgesia and in which abrupt discontinuation of the drug results in w/drawal symptoms (physical dependence)
opioid withdrawal
the S/S assoc. w/ abstinence from or w/drawal of an opioid analgesic when the body has become physically dependent on the substance