Compare Coumadin vs. Lovenox

Head-to-head comparisons of medication uses, side effects, ratings, and more.

Coumadin (warfarin)

Prescription only

Lovenox (Enoxaparin)

Prescription only
Prevents blood clots.

Coumadin (warfarin) is a cheap and effective medicine that prevents new blood clots. It requires regular blood tests and you'll need to eat, exercise, and take your medicines consistently.

3.8/ 5 average rating with 513 reviewsforCoumadin
Prevents blood clots.

Lovenox (Enoxaparin) is a good anticoagulant that reduces the risk of death or bleeding, and blood clots are less likely to happen. However, it is only available as an injection which isn't great if you're afraid of needles.

4.0/ 5 average rating with 19 reviewsforLovenox
Upsides
  • Coumadin (warfarin) is available as a generic, so it should be less expensive than the brand version.
  • In case you start bleeding too much while using Coumadin (warfarin), your doctor can give you another drug that reverses Coumadin (warfarin)'s effects.
  • Coumadin (warfarin) comes in numerous strengths.
  • Coumadin (warfarin) has been around for a long time and is one of the most commonly used 'blood thinner' medicines.
  • In a study that compared Lovenox (Enoxaparin) to other medications used to stop blood clots, there was a lower risk of clots coming back, with similar rates of major bleeding and mortality.
  • You don't need to go in for lab tests to check whether it's working, unlike other medications like warfarin that require regular blood draws.
  • Available in generic so it can be cheaper than other "blood thinners".
  • Good option if you're pregnant or have cancer.
Downsides
  • Raises your risk of bleeding and bruising.
  • Requires regular blood work, such as an INR, to make sure Coumadin (warfarin) is working correctly.
  • Your daily dose of Coumadin (warfarin) can change if you change your diet, exercise patterns, or use of alcohol.
  • A lot of other drugs and supplements interact with Coumadin (warfarin), so you'll need to check with your doctor or pharmacist before starting any new medicines.
  • It is only available as an injection, so it's not great if you're afraid of needles.
  • While surprise bleeding episodes can be treated while taking Lovenox (Enoxaparin), they won't completely work.
  • It doesn't work as well as other medications for "thinning the blood" if you are overweight, underweight, or if you have kidney disease.
Used for
Dosage forms
  • Pill
  • Injection
Price
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Reviews
513 reviews so far
61%
saidit'sworth it
54%
saiditworked well
21%
saidit'sa big hassle

Have you used Coumadin (warfarin)?

Leave a review
19 reviews so far
63%
saidit'sworth it
63%
saiditworked well
16%
saidit'sa big hassle

Have you used Lovenox (Enoxaparin)?

Leave a review
Side effects
The Coumadin (warfarin) FDA package insert doesn’t have numbers about how common side effects are.
7possible side effects
  • Fever
    5%
  • Major hemorrhage
    4%
  • Hemorrhage
    4%
  • Nausea
    3%
  • Peripheral edema
    3%
  • Anemia
    2%
  • Edema
    2%
See more detailed side effects
Risks and risk factors
  • Life threatening bleeding
    • Coumadin (warfarin) dose too high
    • Age greater than 65 year
    • History of stomach bleeding
    • High blood pressure
    • Kidney or liver problems
    • Drug interactions
    • Change in lifestyle or diet
    • Alcohol use
    • Certain genetic factors
  • Harm to fetus
    • Women of childbearing age
  • Drug and diet interactions
  • Potential surgery or amputation
See more detailed risks and warnings
  • Blood clot in the spine
    • Spinal puncture (spinal tap)
    • Getting anesthesia in the spine (epidural anesthesia)
    • Taking NSAIDs or other blood thinning medicines
  • Unusual bleeding
    • History of bleeding problems
    • Severe high blood pressure
    • Older age
  • Increased risk of stroke or increased risk of blood clots
    • Stopping Lovenox (Enoxaparin) early
  • Clotting problems
    • Heparin-induced thrombocytopenia
See more detailed risks and warnings