Benzamycin

(benzoyl peroxide / erythromycin)

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3.4/ 5 average rating with 146 reviewsforBenzamycin
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Topical treatment for acne and pimples.

Skip Upsides & Downsides section. Skip to side effects section.

Our bottom line

Benzamycin (benzoyl peroxide / erythromycin) is a common affordable treatment for acne and pimples, but it can stain clothing and hair.

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  • Price before coupon
    $334.91
  • Lowest price with coupon
    $32.50
    90% savings
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Quick facts about Benzamycin
  • Drug class: Dermatologic
  • Rx status: Prescription only
  • Generic status: Lower-cost generic available (benzoyl peroxide / erythromycin)

Upsides

  • The combination of medicines in Benzamycin (benzoyl peroxide / erythromycin) works better to reduce bacteria in oil glands and improve overall appearance of acne than either medicine alone.
  • Combining an antibiotic with benzoyl peroxide lowers the chances of Benzamycin (benzoyl peroxide / erythromycin) not working as well over time (known as resistance).
  • Can be used in combination with acne pill medicine if your doctor thinks you need it.
  • A generic form of Benzamycin (benzoyl peroxide / erythromycin) is available to help lower cost.
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What to expect from Benzamycin, on one page

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People’s experience with Benzamycin

146reviews so far. What do you think?

Downsides

  • Benzamycin (benzoyl peroxide / erythromycin) may not work for everyone. Like with any acne medicine, you may have to try different medicines before finding the one that works for you.
  • You have to apply this twice a day. With some other medicines, you may only need to apply once a day.
  • Is generally only effective for mild to moderate acne. If you have severe acne, you may need an oral medication.
  • The most common form of Benzamycin (benzoyl peroxide / erythromycin) needs to be stored in the fridge and is only good for 3 months even if you have medicine remaining in the container.
Get our free fact sheet

What to expect from Benzamycin, on one page

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How it works

Benzamycin (benzoyl peroxide / erythromycin) is a combination topical medicine. Erythromycin is an antibiotic that kills bacteria that cause acne. Benzoyl peroxide works to fight the bacteria, dry out the skin, and shed the acne-affected area.

Quick facts about Benzamycin
  • Drug class: Dermatologic
  • Rx status: Prescription only
  • Generic status: Lower-cost generic available (benzoyl peroxide / erythromycin)

Used for

Dosage forms

  • Gel
People’s experience with Benzamycin

146reviews so far. What do you think?

Prices and coupons

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What to expect when you take Benzamycin (benzoyl peroxide / erythromycin) for Acne

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  • First few hoursHours
    First few daysDays
    First few weeksWeeks
    First few monthsMonths
  • Effectiveness
  • Starts to kick in
    Full effects
  • First few hoursHours
    First few daysDays
    First few weeksWeeks
    First few monthsMonths
  • Possible side effects
  • Dryness
  • Itching
  • Burning sensation
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Side effect rates for Benzamycin (benzoyl peroxide / erythromycin)

  • Dry skin
    8%8%
    4%4%
  • Dryness
    3%3%
  • Hives
    3%3%
  • Reaction where applied
    3%3%
    1%1%
  • Eyelid inflammation
    2%2%
    1%1%
  • Itching
    2%2%
    1%1%
0%
10%
20%
30%
40%
50%
60%
70%
80%
Where we got our data »

The placebo bar shows how common a side effect was for people taking a sugar pill instead of Benzamycin.

Benzamycin (benzoyl peroxide / erythromycin)
Placebo

People taking Benzamycin felt side effect more

People taking Benzamycin felt side effect less

No difference

Risks and Warnings for Benzamycin (benzoyl peroxide / erythromycin)

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  • Benzamycin (benzoyl peroxide / erythromycin) can bleach your hair and clothes. Be careful to avoid the hairline when applying to your face. Wash your hands after using to avoid staining or discoloring fabrics and clothing.