Exam 2 Meds Flashcards
Albuterol
- short acting, beta 2 receptor agonist
- acts on the smooth muscle of the bronchi to reverse bronchospasm, decreases airway resistance and residual volume…increases vital capacity and airflow
- avoid in arrhythmias
AE: tachycardia, dizziness, palpitations, tremors, nervousness, headaches
Salmeterol
- long acting beta 2 receptor agonists
- relaxes bronchial smooth muscle by selective action on beta 2 receptors
- do NOT use without the use of an asthma controller med such as inhalled steroid
Theophylline
- Xanthine derivatives
- inhibits specific phosphodiesterases, increases cAMP, leads to relaxation of bronchial smooth muscle and pulmonary vessel relaxation
- avoid in patients w/ hypersensitivity to xanthine, PUD, seizures
- tachycardia, palpitations, headaches
Ipratroprium bromide (atrovent)
short-acting anticholinergic
blocks the action of acetylcholine at the muscarinic cholinergic receptors in bronchial smooth muscle causing bronchdilation
- avoid in patients w/ urinary retention, BPH, closed angle-glaucoma
- AE: cough, dry mouth, dyspepsia, N/V
Tiotropium bromide (Spiriva)
- long-acting anticholinergics
- inhibits muscarinic M3 receptors in the lungs leading to smooth muscle bronchodilation
- avoid in patients with urinary retention, BPH, closed angle glaucoma
- AE: dry mouth, pharyngitis, URI, headache, mouth irritation
Isotretinoin (Accutane)
- systemic retinoid
- reduces sebum production by reducing sebaceous gland size, normalizing follicular keratinization and indirectly reducing acne
- AE: chelitis, dry skin, fragility, fatigue, visual disturbance, GI rxn
Rational Drug Selection for Acne
Noninflammatory Comedonal Acne= topical retinoid or bonzoyl peroxide
Inflammatory Papulopustular Acne= topical combination therapy of topical antibiotic or retinoid plus benzoyl peroxide
Severe Inflammatory= oral abx combined with topical combo therapy with topical abx or retinoid plus benzoyl peroxide
Topical Corticosteroids
use for dermatitis, psoriasis
anti-inflammatory, antipruritic, vasoconstriction
enhanced by increased skin temp, hydration
Ointments more occlusive and potent, creams less occlusive less potent w/ lotions being less potent
Do not use on face, groin, axilla
Caution in pregnancy
Children require the lowest strength
Pimecrolimus (Elidel) and Tacrolimus (Protopic)
Topical Calcineurin Inhibitors
indicated for atopic dermatitis
supresses cellular immunity through inhibiting T-cell activation by binding to intracellular proteins, including calcineurin-dependent proteins. Inhibits inflammatory cytokines and mediators from mast cells
Do not use in lactation, consult for use in pregnancy
Do not use in children younger than 2 years
AE: local reaction at the site- burning, pruritis, tingling, headache, fever, flu-like sx, acne, folliculitis
Diphenhydramine (benadryl)
Topical antihistamine and antipruritic
provides local relief of itching and swelling b/c of effects on H1 receptors; suppresses the formation of edema and pruritus
blocks transmission of nerve impulses
*do not use longer than 7 days
Doxepin (Zonalon)
Topical antihistamine and antipruritic
histamine-blocking action of H1 and H2 receptors, inhibiting the activation of the histamine receptors
Pyrethrins (RID)
for LICE
absorbed through the exoskeleton of arthorpods, causing paralysis/death
avoid in chrysanthemum or ragweed allergy
avoid in children younger than 2 years
compatible with pregnancy and lactation
AE: localized burning, pruritis, skin irritation
Permethrin
for lice and scabies
*1st line treatment for lice and scabies
absorbed through exoskeleton, causing paralysis and death
has residual activity against lice for up to 10 days
avoid near eyes, avoid in peds younger than 2 months
compatible with pregnancy and lactation
AE: localized burning, pruritis, skin irritation
Malathione (Ovide)
second line for lice Acts as a pediculicide by inhibiting cholinesterase activity in vivo
Both pediculicidal and ovicidal
Some residual activity for up to seven days
Flammable, do not use hair dryer
Avoid in children under 6
Avoid in pregnancy and lactation
AE: organophosphate poisoning and severe resp distress if ingested
Benzyl Alcohol (Ulesfia)
stuns the lice, leading to the ability to penetrate their respiratory mechanism, which leads to asphyxiation
avoid in peds younger than 6 months
compatible with pregnancy and lactation
AE: pruritis, erythema
Ivermectin (Sklice)
can be for scabies and lice
interferes w/ the function of the nerve and muscle cells, resulting in parasite paralysis and death
single application of topical ivermectin is effective for eradication of head lice
avoid in pregnancy and lactation; approved for children over 6 months
AE: dry skin, burning sensation, eye irritation
Warfarin (Coumadin)
Competitively inhibits VKORC1 complex, thus depleting functional vitamin K reserves and hence reducing hepatic synthesis of several clotting factors
Black box warning: may cause fatal bleeding•Caution in hepatic impairment that may enhance response•Avoid in pregnancy but safe in lactation•Maintain stable intake of foods high in vitamin K
Heparin
Prevention of postoperative thromboembolism
Potentiates the action of antithrombin III and thereby inactivates thrombin as well as other anticoagulation factors (i.e., factor Xa) and prevents the conversion of fibrinogen to fibrin
Avoid in pregnancy; compatible with lactation•Use caution when combining with conditions that may predispose to hyperkalemia
Low molecualr weight heparin (LOVENOX)
DVT and/or PE, prophylaxis
Potentiates the activity of (antithrombin) III and inactivates factors Xa and IIa (prothrombin)
Compatible with pregnancy and lactation
Dabigatran (Pradaxa)
Reducing the risk of stroke and systemic embolism in patients with nonvalvular atrial fib
Direct thrombin inhibitor; thrombin is required for the conversion of fibrinogen to fibrin in the clotting cascade; remember that fibrin directly precedes clot formation
Black box warning concerning epidural or spinal hematomas with spinal interventions•Not safe in pregnancy and lactation, needs more information
Rivaroxaban, Apixaban, Edoxaban, and Betrixaban
Treatment of DVT and/or PE and reduction of stroke and systemic embolism in nonvalvular afib
All are direct factor Xa inhibitors
Black box warning concerning epidural or spinal hematomas with spinal interventions•Not recommended in pregnancy and lactation, needs more information
Aspirin
MI and stroke prevention and acute coronary
syndrome
Irreversibly antagonizes the cyclooxygenase pathway
thus interfering with platelet aggregation
*do not use in peds with flu or chicken pox
*Steven Johnson Syndrome a AE
Clopidrogel (Plavix)
Unstable angina, recent MI, ACS
Reduces platelet aggregation by inhibiting the adenosine diphosphate (ADP) pathway of platelets•Has no effect on prostaglandins
Avoid with severe hepatic disease or patients with GI ulcers
Ferrous Sulfate (20% elemental iron)
Replaces iron, found in hemoglobin, myoglobin, and other enzymes; allows the transportation of oxygen via hemoglobin
-cost effective, most easily absorbed
Montelukast (Singulair)
Leukotriene Modifiers
Chronic asthma, allergic rhinitis
Inhibits the cysteinyl leukotriene (CysLT1) receptor, which is correlated with the pathophysiology of asthma, including airway edema and smooth muscle contraction
Notto be used for asthma exacerbation•May be used in pregnancy and caution in lactation
Zileuton (Zyflo)
Leukotriene Modifiers
Chronic asthma
Inhibits 5-lipoxygenase, the enzyme that catalyzes the formation of leukotrienes from arachidonic acid
Not recommended in pregnancy and lactation
Should not be used in active liver disease
Fluticasone (Flovent or Flonase)
Corticosteroids
Extremely potent vasoconstrictive and anti-inflammatory activity
do not use for asthma exacerbation, can cause oral candida
Cromolyn sodium
Inhaled Anti-Inflammatory Agent
Asthma, bronchospasm prophylaxis, allergic rhinitis
Inhibits antigen-induced bronchospasm and blocks the release of histamine by inhibiting mast cell degranulation
not for asthma exacerbation-
Azelastine (Astepro) and Olopatadine (Patanase)
Inhaled Antihistamines
Seasonal allergic rhinitis and vasomotor rhinitis
Inhibit the release of histamine by competing with histamine at H1 receptor sites
Not to be combined with CNS depressants•Avoid driving or operating heavy machinery
Somnolence (greater with azelastine)
Diphenhydramine (Benadryl)
First-Generation Antihistamines
Allergic rhinitis, hypersensitivity reactions, urticaria and angioedema, insomnia, motion sickness antiemetic
Competitively antagonizes the effects of histamine at the peripheral H1 receptor sites at the GI tract, blood vessels, and respiratory tract
Caution in elderly patients and young children
Alternative agents recommended in pregnancy- avoid in lactation
Sedation, dizziness, confusion, ataxia, urinary retention, paradoxical excitation, dry mouth, tremor, blurred vision
Cetirizine, Loratadine, and Fexofenadine
Second-generation antihistamines
Respiratory allergies, urticaria
Competitively antagonize the effects of histamine at the peripheral H1 receptor sites at the GI tract, blood vessels, and respiratory tract
AE= headache, drowsiness, nervousness
Decongestants
Sudafed, Afrin
Avoid in severe hypertension and coronary artery disease (oral)•Not recommended for children younger than four years (oral)•Not recommended in pregnancy and lactation•Avoid in combination with beta blockers
Anxiety, restlessness, headache, insomnia, psychological disturbances, tremors, hypertension, tachycardia
Dextromethorphan
Antitussive
Acts centrally in the medulla to elevate the threshold for coughing; structurally related to codeine
Avoid in persistent or chronic cough caused by smoking, asthma, or emphysema
drowsiness, dizziness, and GI upset
Codeine
Antitussive
Direct effect on cough receptors in the medulla
Avoid in persistent or chronic cough caused by smoking, asthma, or emphysema
risk of abuse; drowsiness, dizziness, and GI upset
Benzonatate
Antitussive
Related to anesthetic tetracaine and thought to anesthetize the stretch receptors in the respiratory passages, calming the cough
Avoid in persistent or chronic cough caused by smoking, asthma, or emphysema
chest numbness, dizziness, GI upset, headache, and “chilly” sensation
Mucinex
Expectorant