Clomiphene vs. Letrozole for Fertility and Breast Cancer: Important Differences and Potential Risks.

Clomiphene

(Clomid)

Letrozole

(Femara)

Summary for Clomiphene

Prescription only

Clomiphene (Clomid) is a selective estrogen receptor modulator (SERM) used to treat fertility problems in people who want to become pregnant. It works by helping your body release an egg, ovulation. You'll take the medication by mouth once a day for 5 days during a specific part of your menstrual cycle. Common side effects include hot flashes, bloating, and stomach pain.

Indications for Clomiphene

Female infertility

Pros and Cons for Clomiphene

Pros

Might work better for people with polycystic ovary syndrome (PCOS)
Usually only taken for 5 days during each cycle
Available as a tablet you take by mouth

Cons

Typically only recommended for up to 3 cycles, not a long-term treatment
Can cause vision problems in some rare cases
Not safe if you have liver problems or certain thyroid problems

Common Side Effects for Clomiphene

Swollen ovaries (14%)
Hot flashes (10%)
Stomach discomfort/bloating (6%)

Warnings for Clomiphene

Vision changes
Ovarian hyperstimulation syndrome (OHSS)
Multiple pregnancy
Possible harm to unborn baby

Summary for Letrozole

Prescription only

Letrozole (Femara) is an aromatase inhibitor, a type of hormonal therapy. It’s FDA-approved to treat or prevent breast cancer in females who’ve already gone through menopause. It’s sometimes prescribed off-label by fertility specialists to help females become pregnant. Letrozole (Femara) is taken by mouth, typically once a day for breast cancer. Common side effects include hot flashes and pain in the bones, muscles, and joints.

Indications for Letrozole

Breast cancer in females who have already gone through menopause:
- Preventing breast cancer from coming back (hormone receptor-positive early breast cancer), sometimes after treatment with tamoxifen (Nolvadex)
- Treatment of advanced or metastatic breast cancer

Pros and Cons for Letrozole

Pros

Can be used during early and advanced stages of breast cancer
Taken by mouth once daily
Available as a lower-cost generic

Cons

Only for females who've reached menopause (for treating breast cancer)
Can cause menopausal symptoms, such as hot flashes and night sweats
Can weaken your bones if taken long-term

Common Side Effects for Letrozole

High blood cholesterol levels (52%)
Hot flashes (34%)
Muscle, bone, or joint pain (25%)

Note: Side effects reported by females who took letrozole (Femara) after surgery for early breast cancer.

Warnings for Letrozole

Weakened bones
High cholesterol levels
Liver problems
Risk of drowsiness
Harm to unborn baby

Prices with our coupons for Clomiphene vs. Letrozole

Clomid30 tablets / 50mg

$111.49-

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Letrozole10 tablets / 2.5mg

$9.41$173.98

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Clomiphene vs. Letrozole

Clomiphene

Letrozole

Summary for Clomiphene

Indications for Clomiphene

Pros and Cons for Clomiphene

Pros

Cons

Common Side Effects for Clomiphene

Warnings for Clomiphene

Summary for Letrozole

Indications for Letrozole

Pros and Cons for Letrozole

Pros

Cons

Common Side Effects for Letrozole

Warnings for Letrozole

Prices with our coupons for Clomiphene vs. Letrozole

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Clomiphene

Letrozole

Summary for Clomiphene

Indications for Clomiphene

Pros and Cons for Clomiphene

Pros

Cons

Common Side Effects for Clomiphene

Warnings for Clomiphene

Summary for Letrozole

Indications for Letrozole

Pros and Cons for Letrozole

Pros

Cons

Common Side Effects for Letrozole

Warnings for Letrozole