HEADACHES AND GOUT Flashcards
CYCLOOXYGENASE (COX) INHIBITORS
Aspirin (ASA) ,NSAIDS,Acetaminophen (APAP).
THERAPEUTIC EFFECTS: suppress inflammation, relieve pain, reduce fever
Aspiring can also protect against MI and stroke.
COX1 (good)
MECHANISM OF ACTION : beneficial process, GI track decrease gastric acid, increase bicarbonate and mucus.Platelet aggregation and kidney vasodilation.
COX2 (bad)
MECHANISM OF ACTION : Tissue injury (inflammation and pain). Brain fever and pain. Kidney vasodilation.
FIRST GENERATION NSAIDs
Use to treat inflammation disorders.
MECHANISM OF ACTION: Inhibits COX-1 and 2. It has an increased risk factors.
ASPIRIN
MECHANISM OF ACTION: Irreversible non-selective inhibitor of COX-1 and 2.
PHARMACOKINETICS: Absorption is rapid and complete with oral dosing but slower with rectal . Distribution is highly protein bound it a has a short half-life and it is excreted really , highly dependent on urine PH.
ASPIRIN ADVERSE EFFECTS
Gastrointestinal , bleeding , renal impairment , Reye’s syndrome , hypersensitivity , salicylism , and it must be avoid in pregnancy.
ASPIRIN DDI
Anticoagulants, Glucocorticoids , alcohol , NSAIDs , Angiotensin converting enzyme inhibitor, Angiotensin II receptor blockers.
ASPIRIN OVERDOSE
SIGNS AND SYMPTOMS OF OD AND TREATMENT OF OD
Lethal dose in adults is 20-25 grams and -4 grams in children.
SIGNS AND SYMPTOMS OF OD: Respiratory alkalosis (hyperventilation), electrolytes imbalances , coma, hyperthermia and sweating
TREATMENT : Supportive care , external cooling, sodium bicarbonate infusion