Drug Interactions Flashcards
Which 2 antibiotics induce HYPOglycemia?
- Ciprofloxacin
2. Sulfamethoxazole
Which 2 anti-hypertensives induce HYPOglycemia?
- ACE inhibitor (Lisinopril)
2. Beta blockers (atenolol, propranolol, carvedilol)
Which 2 diabetes medications induce HYPOglycemia?
- Insulin
2. Glyburide
Which SSRI induces HYPOglycemia?
Fluoxetine
Which 2 antiretrovirals induce HYPERglycemia?
- Zidovudine
2. Adevofir
T/F: Prednisone is the only glucocorticoid that induces HYPERglycemia
FALSE! All of the glucocorticoids induce hyperglycemia
Which 3 types of anti-hypertensive medications induce HYPERglycemia?
- Ca channel blocker:Amlopidine
- Beta blockers: Atenolol and propranolol
- Diuretics: Furosemide (Loop) and Hydrochlorothiazide (Thiazide)
Which second generation (atypical) antipsychotic medication induces HYPERglycemia?
Risperidone
Which 3 lipid-lowering agent induce HYPERglycemia?
- Fish-oil (>3g daily)
- Atorvastatin
- Niacin (>2g daily)
Which 2 antacids deplete K+?
- Sodium bicarbonate
2. Calcium bicarbonate
Which 2 anti-inflammatory medications deplete K+?
- Corticosteroids
2. Aspirin
Which 2 diuretics deplete K+?
- Furosemide (loop)
2. Hydrochlorothiazide (thiazides)
Which gout medication depletes K+?
Colchicine
Which laxative medication depletes K+?
Bisacodyl
Which ACE inhibitor medication increases K+?
Lisinopril
Which angiotensin-receptor blocker medication increases K+?
Valsartan
Which 3 beta-blocker medications increase K+?
- Atenolol
- Propranolol
- Carvedilol
Which 2 anti-fungal medications increase K+?
- Fluconazole
2. Metronidazole
Which diuretic medication increases K+?
Spironolactone
Which antibiotic medication increases K+?
Penicillin VK
Which 2 anti-inflammatory medications increase K+?
- Ibuprofen
2. Naproxen
What are 3 other medications increase K+?
- Heparin
- Cyclosporine
- Digoxin
Which 3 drugs induce p-glycoprotein?
- Carbamazepine
- Phenytoin
- Phenobarbital
Which 4 drugs inhibit P-glycoprotein?
- Amiodarone
- Carvedilol
- Azithromycin
- Cyclosporine
Aspirin + Ibuprofen =
Decreased effect
ACE inhibitor (Lisinopril) + NSAIDS =
- Reduced effect of Lisinopril
2. Acute renal failure
Levodopa + Risperidone =
Decreased effect
Warfarin + Vitamin K =
Reduced effect of warfarin
Beta blockers + Beta agonist (albuterol) =
Blocks effect, precipitate bronchospasm
Anticholinergic drugs + acetylcholinesterase inhibitors =
Blocks effect
Carbamazepine + OCPs =
Pregnancy
Carbamazepine + Warfarin =
Increased risk of coagulation
Carbamazepine + Cyclosporine =
Increased dose
NSAIDS + SSRI (Fluoxetine) or Warfarin =
Increased risk of bleeding
NSAIDS + Glucocorticoids (All) =
Increased risk of gastric bleeding
ACE inhibitors (Lisinopril) + Spironolactone =
Hyperkalemia (arrhythmia)
Renal failure
SSRIs (Fluoxetine) + Triptans (sumatriptan) =
Serotonin syndrome
SSRIs (Fluoxetine) + 5HTP, tryptophan, melatonin =
Serotonin syndrome
SSRIs (Fluoxetine) + TCA (amitryptaline) =
Serotonin syndrome
SSRIs (Fluoxetine) + MAO inhibitors (Phenelzine) =
Serotonin syndrome
Trazodone + Buspirone =
Serotonin syndrome
MAO inhibitors + amphetamines =
Hypertensive crisis (Sometimes fatal)
MAO inhibitors + Sympatomimetics =
Hypertensive crisis (Sometimes fatal)
MAO inhibitors + Bupropione =
Hypertensive crisis (Sometimes fatal)
MAO inhibitors + Serotonergic agents (Trazodone, Fluoxetine, Sumatriptan) =
Hypertensive crisis (Sometimes fatal)
Beta blockers (all) + Calcium channel blockers (Amlodipine) =
Serious bradycardia
What are 2 oculotoxic responses to Isotretinoin?
- Dry eyes
2. Sudden decrease in night vision
What is the oculotoxic response to antihistamine use?
Angle-closure glaucoma
s/sx: HA, eye pain, N&V, blurred vision, halo vision around lights
What is the oculotoxic response to hydroxychloroquine?
Retinal toxicity leading to permanent vision loss
What is the oculotoxic response to prednisone?
Cause an elevation in eye pressure, which is a major risk factor for developing glaucoma and is also associated with cataracts
What are 3 oculotoxic responses to Sildenafil?
- Blurred vision
- Sensitivity to light
- Seeing a temporary blue tinge to objects
What is the oculotoxic response to Tamsulosin?
Builds up in the iris and can prevent the pupil from dilating
What are 2 oculotoxic responses to Amiodarone?
- Optic neuropathy/neuritis
2. Corneal micro-deposits
What is the oculotoxic response to Tamoxifen?
Crystalline retinopathy
Penicillin & Amoxicillin + Methotrexate =
Increase in SEs of methotrexate (N&V, mouth ulcers, low blood cell #, weakness)
Ciprofloxacin + Theophylline =
Increase in SEs of theophylline (N&V, diarrhea, HA, insomnia, seizures, heart palpitations)
Ciprofloxacin + Prednisone (and all other corticosteroids) =
Can increase risk of tendinitis and tendon rupture
Ciprofloxacin + Warfarin =
Bleeding more easily
Ciprofloxacin + Bupropione =
Can increase risk of seizure
Ciprofloxacin + Amiodarone =
Can increase the risk of an irregular heart rhythm
Ciprofloxacin + Antacids, zinc supplements, or high concentrations of multi-vitamins =
Reduces absorption and block effect of antibiotic
Doxycycline + Vitamin A or Fish oil =
May increase risk of increased pressure in the brain
Doxycycline + Isotretinoin =
May increase risk of increased pressure in the brain
Doxycycline + Methotrexate =
Increase in SEs of methotrexate (N&V, mouth ulcers, low blood cell #, weakness)
Azythromycin + Amiodarone =
Can increase risk of an irregular heart rhythm that is potentially life-threatening
SMZ + Warfarin =
May increase risk of bleeding
SMZ + Methotrexate =
Increase in SEs of methotrexate (N&V, mouth ulcers, low blood cell #, weakness)
SMZ + Cyclosporine =
Can add to the risk of organ rejection
Trimethoprim + Methotrexate =
Can cause suppression of bone marrow activity