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Compare Climara vs. Fosamax

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

Key takeaways

Estradiol (Climara) and alendronate (Fosamax) are both used to prevent osteoporosis, but they belong to different medication classes and have distinct uses and characteristics. Estradiol is an estrogen replacement therapy primarily used to relieve menopause symptoms and prevent bone loss after menopause. It is applied as a transdermal patch once a week. Alendronate, on the other hand, is a bisphosphonate that treats and prevents osteoporosis by slowing bone breakdown. It is taken orally, either daily or weekly. Both medications are available as a lower-cost generic. Estradiol can cause side effects like breast pain and headaches, while alendronate may lead to stomach pain and heartburn. You should stay upright for 30 minutes after taking alendronate to avoid esophageal irritation.

  • Climara (estradiol patch)
    Alendronate (Fosamax)
  • Climara (estradiol patch)
    Alendronate (Fosamax)

  • Summary of Climara vs. Fosamax

    Summary for Estrogen replacement
    Prescription only

    The Climara (estradiol patch) is a once-weekly hormonal patch that relieves menopause symptoms and treats low estrogen levels. It can also help prevent bone loss (osteoporosis) in people who have gone through menopause. The patch is a type of hormone replacement therapy (HRT) and typically has fewer side effects than oral estrogen pills. You'll apply one patch to the skin of your lower stomach or the upper buttocks once a week. Potential side effects of this hormone patch include breast pain, headaches, and stomach pain.

    Summary for Bisphosphonate
    Prescription only

    Alendronate sodium (Fosamax) is a bisphosphonate that prevents and treats osteoporosis. It works by slowing the breakdown of bones so that the body has a chance to build up more bone; this strengthens bones and lowers the risk of fractures. Alendronate (Fosamax) is taken by mouth, either daily or weekly dosing, depending on your dose. In addition to the tablet, it's also available as an oral solution and a dissolvable tablet (brand name Binosto). Some common side effects of alendronate (Fosamax) can include stomach pain, heartburn, and bone or muscle pain.

  • Indications of Climara vs. Fosamax

    Indications for
    •Hot flashes, night sweats, and flushes caused by menopause
    •Vaginal dryness and irritation caused by menopause
    •Low estrogen levels due to certain conditions
    •Prevention of osteoporosis after menopause
    Indications for
    •Prevention and treatment of osteoporosis in females
    •Treatment of osteoporosis in males
    •Paget's disease

  • Pros and Cons of Climara vs. Fosamax

    Pros and Const for Estrogen replacement
    Pros
    •Relieves multiple menopause symptoms
    •Only need to apply once a week
    •Might have fewer side effects than oral estrogen pills
    •Available in different strengths, allowing you to customize your dose
    Cons
    •Commonly causes breast pain, headaches, and stomach pain
    •Can cause skin irritation, redness, and itchiness at the patch site
    •Raises your risk of certain cancers, blood clots, and strokes
    •Might need to take it with another hormone called progestin if you have a healthy uterus
    Pros and Const for Bisphosphonate
    Pros
    •Can be taken by males and females (unlike another bisphosphonate)
    •Option for daily or weekly dosing for osteoporosis
    •Taken by mouth
    •Comes as a regular tablet, oral solution, or effervescent tablet
    Cons
    •Can't lie down for 30 minutes after you take it
    •Must take on empty stomach, can't eat for 30 minutes after a dose
    •Can cause serious jaw problems and severe muscle or joint pain
    •Has many stomach-related side effects

  • Common Side Effects of Climara vs. Fosamax

    Common Side Effects for
    •Breast pain (up to 29%)
    •Headache (up to 18%)
    •Upper respiratory tract infection (up to 17%)
    •Stomach pain (up to 16%)
    •Swelling (up to 13%)
    •Back and body pain (up to 11%)
    •Depression (up to 8%)
    •Vaginal discharge (up to 7%)
    •Excessive gas (up to 7%)
    •Itching (up to 6%)
    •Nausea (up to 6%)
    Common Side Effects for
    •Stomach pain (up to 7%)
    •Muscle, bone, and joint pain (up to 4%)
    •Heartburn or indigestion (up to 4%)
    •Nausea (up to 4%)
    •Passing gas (up to 4%, more common with daily dose)

  • Warnings of Climara vs. Fosamax

    Common Side Effects for
    •Blood clots and related complications (e.g., heart attack, stroke)
    •Uterine (endometrial) cancer
    •Breast cancer
    •Ovarian cancer
    •Dementia
    •Gallbladder and liver problems
    •Vision problems
    •High triglycerides
    •Low thyroid hormone levels (hypothyroidism)
    •Fluid Retention
    •Worsening of other health conditions
    Common Side Effects for
    •Irritation and ulcers of the stomach and esophagus
    •Lower calcium levels
    •Muscle Pain
    •Jaw bone problems
    •Leg bone fractures
    •Not recommended in people with serious kidney problems

  • Prices with our coupons for Climara vs. Fosamax

    Learn more about Climara
    Learn more about Alendronate

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