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Femara (letrozole) Drug Interactions

A total of 116 drugs are known to interact with Femara (letrozole).

  • 3 major drug interactions
  • 99 moderate drug interactions
  • 14 minor drug interactions

Show all medications in the database that may interact with Femara (letrozole).

Check for interactions with Femara (letrozole)

Type in a drug name and select a drug from the list.

Common medications checked in combination with Femara (letrozole)

  • Advil (ibuprofen)
  • Aleve (naproxen)
  • amoxicillin (Amoxil, Trimox, Amoxicot, Apo-Amoxi, Moxilin, Moxatag, DisperMox, Wymox, Biomox)
  • aspirin (Aspir 81, Ecotrin, Acetylsalicylic Acid, Aspirin Low Strength, Bayer Aspirin, Aspir-Low, Ascriptin, Bufferin, Ecotrin Adult Low Strength, Arthritis Pain, Fasprin, Halfprin, Aspiritab, Easprin, Aspergum, Durlaza, St. Joseph 81 mg Chewable Aspirin, Empirin, Buffered Aspirin, Ecotrin Maximum Strength, Ascriptin Enteric, Migralex, Aspi-Cor, Aspirtab, Low Dose ASA, Bufferin Extra Strength, St. Joseph 81 mg Aspirin Enteric Safety-Coated, Bayer Aspirin Regimen, Ascriptin Maximum Strength, Arthritis Foundation Pain Reliever, Bayer Aspirin with Heart Advantage, Bufferin Low Dose, Medi-Seltzer, Sloprin, ZORprin, Bayer Children's Aspirin, Bayer Aspirin Extra Strength Plus, Buffex, Entercote, Extra Strength Bayer, Genacote, Gennin-FC, Genprin, Litecoat Aspirin, Minitabs, Tri-Buffered Aspirin, Entaprin, Bufferin Arthritis Strength, Therapy Bayer, St. Joseph Aspirin, Stanback Analgesic, Norwich Aspirin, Acuprin 81, Ecpirin, Bayer Women's Aspirin With Calcium, Zero-Order Release, YSP Aspirin, Miniprin, Aspirin Lite Coat, Heartline, Bayer Advanced Aspirin, Buffasal)
  • Aspirin Low Strength (aspirin)
  • Benadryl (diphenhydramine)
  • Calcium 600 D (calcium / vitamin d)
  • Effexor XR (venlafaxine)
  • Fish Oil (omega-3 polyunsaturated fatty acids)
  • gabapentin (Neurontin, Gralise, Gabarone, Fanatrex)
  • Ibrance (palbociclib)
  • ibuprofen (Advil, Motrin, IBU, Children's Motrin, Advil Liqui-Gels, Proprinal, IBU-200, Motrin IB, Advil Migraine, Ibu-8, Motrin Childrens, Caldolor, Ibuprofen PMR, Nuprin, Childrens Ibuprofen Berry, Motrin Migraine Pain, Addaprin, NeoProfen, Advil Infant's Concentrated Drops, Ibu-Tab, Rufen, Genpril, Motrin Infant Drops, Haltran, Menadol, Midol IB, Saleto-200, Q-Profen, Saleto-400, Saleto-600, Saleto-800, A-G Profen, Advil Children's, Advil Junior Strength, Midol Maximum Strength Cramp Formula, Actiprofen, PediaCare Infants' IB Ibuprofen Pain Reliever/Fever Reducer, Ibu-4, PediaCare Children's IB Ibuprofen Pain Reliever/Fever Reducer, Ibu-6, Motrin Junior Strength, Help I Have An Aching Body, Children's ElixSure IB, Cap-Profen, Motrin Pediatric, Advil Film-Coated)
  • Lasix (furosemide)
  • levothyroxine (Synthroid, Levoxyl, Tirosint, Levothroid, Eltroxin, Unithroid, Euthyrox, Levothyrox, Eutroxsig, Oroxine, Levo-T, Levotabs, L Thyroxine Roche, Novothyrox, Tirosint-Sol, Levotec, Evotrox)
  • Lipitor (atorvastatin)
  • lisinopril (Zestril, Prinivil, Qbrelis)
  • lorazepam (Ativan, Lorazepam Intensol)
  • maca
  • melatonin (Melatonin Time Release, Bio-Melatonin, SGard, Health Aid Melatonin, VesPro Melatonin)
  • Menopur (menotropins)
  • metformin (Glucophage, Glumetza, Glucophage XR, Fortamet, Riomet)
  • Nexium (esomeprazole)
  • omeprazole (Prilosec, Prilosec OTC, Zegerid (Original Formulation), Omesec)
  • Ovidrel (chorionic gonadotropin (hcg))
  • simvastatin (Zocor, FloLipid)
  • Synthroid (levothyroxine)
  • Tylenol (acetaminophen)
  • Vitamin B12 (cyanocobalamin)
  • Vitamin D3 (cholecalciferol)
  • Xanax (alprazolam)
  • Zofran (ondansetron)
  • Zoloft (sertraline)

Femara (letrozole) alcohol/food interactions

There is 1 alcohol/food interaction with Femara (letrozole)

Femara (letrozole) disease interactions

There are 3 disease interactions with Femara (letrozole) which include:

Drug Interaction Classification

These classifications are only a guideline. The relevance of a particular drug interaction to a specific individual is difficult to determine. Always consult your healthcare provider before starting or stopping any medication.
Major Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit.
Moderate Moderately clinically significant. Usually avoid combinations; use it only under special circumstances.
Minor Minimally clinically significant. Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan.
Unknown No interaction information available.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

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