Classifications Flashcards
(49 cards)
Opioid Partial Agonist
-block mu receptors and compete with agonists
-POTENT synthetic analgesics
-potential for misuse and abuse is less
-Antagonistic activity can produce withdraw symptoms in opioid dependent patients
Example: Nubain
Opioid agonists
Narcotics
MOA: achieve beneficial effects by their action in the CNS. When they act outside CNS that is where unwanted effects occur.
Indications: alleviate severe to moderate pain; cough suppressant-codeine,hydrocodene; anti diarrheal preparations.
Contraindications: allergy, severe asthma, respiratory insufficiency, increased ICP, pregnancy
SE: sedation, constipation, respiratory depression
Opioid antagonist
NARCAN
Reversal agent
-Blocks opioid receptors; does not produce sedation or respiratory depression.
-drug of choice : complete or partial reversal of opioid induced respiratory depression OR diagnosis of suspected opioid overdose
-short half life—must monitor patient
Non-Narcotic Analgesics
Tylenol (acetaminophen)
- analgesic, antipyretic (fever, pain)
- NOT an anti inflammatory
- indications: fever or mild to moderate pain
- will kill liver with overdose, one of most harmful drugs to overdose on
Antidote: acetylcysteine (Mucomyst)
Smells like rotten eggs, oral
NDAIDS
Very common. Potential major toxicity=GI intolerance, bleeding, kidney impairment with long term therapy.
MOA: “prostaglandin” inhibitor
Indications: pain, gout, inflammation, fever, vascular headaches, rheumatoid arthritis, osteoarthritis, inflammatory syndromes.
SE: GI distress, could precipitate in acute or chronic renal failure
Contraindications: conditions that increase risk of bleeding: peptic ulcer disease, 3rd stage of pregnancy because risk of bleeding
No antidote. Activated charcoal is used in tx of overdose of NSAIDs
Aspirin, ibuprofen, Celebrex
Salicylates
NSAID example
Aspirin
First ever NSAID
Only NSAID with anti-platelet abilities
COX-2 inhibitors
NSAID example
Celebrex (celecoxib)
-block what we think may have been causing a GI bleed, less GI upset, prevents GI bleeding, need to be monitored closely for heart issues, increases cardiac issues why there aren’t other cox-2 on market…way pros and cons
Triptans
Agent to treat migraines: oral, sc, intranasal
Serotonin agonist
Drug of choice
Thought to act by constricting certain intracranial vessels
SE: dizziness, drowsiness, rarely severe
Contraindications: recent MI, HTN, angina, diabetes…don’t want to increase BP more than it already is
Ergot alkaloids
Agent to treat migraines, don’t see a lot, used for those who are unresponsive to Triptans
Antineurolgics
Micellaneous Analgesic
Action: work differently in the CNS to decrease excitatory neurotransmitter release
Indication: nerve pain, peripheral neuropathy, fibromyalgia
SE: dizziness, ataxia, drowsiness, fatigue, peripheral edema
Benzodiazepines
Anxiety and insomnia ; Most commonly prescribed
Indications: anxiety, insomnia, skeletal muscle spasm, EMERGENT seizure control, tx of alcohol addiction
SE: usually mild, involve CNS: headache, drowsy, nervousness, vertigo, lethargy, HANGOVER
Contraindications: allergy, pregnancy, narrow angle glaucoma, caution with geriatric patients d/t falls
Reversal Agents Benzodiazepines
Flumazenil (Romazicon)
Symptoms include drowsiness, sedation, respiratory depression
Reverses CNS depressant symptoms
Non-Benzodiazepine Hypnotic Agent
Short half life
Less lethargy or grogginess in the morning
Less abuse potential
For sleep, not anxiety, help getting you to sleep and keeping you asleep
Pituitary Agents
Action: augment the natural effects of pituitary hormones
Indications:
Corticotropin (ACTH): diagnosis and treatment of adrenalcortical insufficiency. Treatment of MS
Somatotropin (GH): stimulates skeletal muscle growth in pts with inadequate secretion
Vasopressin (ADH) : antidiuretic hormone. Symptom management of diabetes insipidus
SE:
Corticotropin: convulsions, dizziness, insomnia
Somatotropin: HA, hyperglycemia, ketosis
Vasopressin: increased BP, drowsiness, HA
Thyroid agents
Action: replacement of thyroid hormone
Indications: hypothyroidism from any cause–> (Myxedema) –sluggish, cold, puffy face
Contraindications: recent MI, adrenal insufficiency, hyperthyroidism
SE: result of overdose=overstimulation of metabolism
Ex: Synthroid
Antithyroid Agents
Action: inhibit formation of thyroid hormone, DOES NOT inactivate already existing hormone
Indication: hyperthyroidism (Graves disease)
SE: most serious: liver and bone marrow toxicity
Contraindications: avoid in pregnancy unless the hyperthyroidism is induced by pregnancy
Ex: PTU
Glucocorticoids
Action: inhibition of inflammatory and immune responses
Indications: many! Management of head or spinal cord injuries , itis, collagen diseases
SE: hypertension, mood swings, hyperglycemia, ecchymosis and poor wound healing, muscle weakness
Mineralocorticoids
Aldosterone: natural hormone excreted by adrenal cortex
Action: Deals with fluid and electrolyte balance
Indications: replacement therapy for patients with adrenal insufficiency; Addison’s disease..sometimes used to increase BP in pts suffering from chronic severe postural hypotension
SE: sodium and fluid retention, impaired wound healing
Contraindications: serious infections like septicemia, systemic fungal infections
Insulin
Action: exogenous insulin functions as a substitute for the endogenous hormone
Indications: type 1 and type 2 Diabetes, emergency treatment of Ketoacidosis
SE: hypoglycemia!! If severe=convulsions! coma, death
Sulfonylureas
Antidiabetic drug
Action: stimulate insulin secretion from beta cells of pancreas. Increase sensitivity of insulin receptors on target cells.
SE: hypoglycemia!!! GI effects, moderate weight gain d/t fluid retention
Biguanides
Deal with insulin resistance. Do not get hypoglycemia as a side effect of med.
Action: decreases hepatic production of glucose. Decreases insulin resistance. Takes 3-4 months for optimal control.
SE: mostly GI: anorexia, nausea, bloating, diarrhea
Contraindications: cardiac insufficiency, liver dysfunction
Thiazolidinediones
Deal with insulin resistance. Do not get hypoglycemia as a side effect of med.
Action: decreases hepatic production of glucose. Decreases insulin resistance. Takes 3-4 months for optimal control.
SE: fluid retention, headaches, weight gain, exacerbation of heart failure
Contraindications: cardiac insufficiency, liver dysfunction
Alpha-glucosidase inhibitors
Action: block enzymes in the small intestine responsible for breaking down complex carbohydrates into monosaccharides. Delays digestion of glucose.
**must be taken with first bite of meal
SE: minimal GI: abdominal cramping, flatulence, diarrhea
GLP-Agonist
Incretin enhancer. Incretins are hormones secreted by the intestines following a meal that signal the pancreas to increase insulin production and the liver to decrease glucose production .
Action: acts like incretins
SE: significant nausea, vomiting and diarrhea in some clients
Contraindications: severe GI disease, gastroparesis