Compare doxycycline vs. Avelox

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

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Vibramycin (doxycycline)

Prescription only

Avelox (moxifloxacin)

Prescription only
Treats bacterial infections.

Vibramycin (doxycycline) is good for treating many bacterial infections, but can increase your skin's sensitivity to sunlight and make you more likely to get a sunburn or rash.

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3.2/ 5 average rating with 112 reviewsfordoxycycline
Treats bacterial infections.

Avelox (moxifloxacin) effectively treats different types of bacterial infections, but is more expensive than its alternatives.

Upsides
  • Vibramycin (doxycycline) is a good alternative for some types of bacterial infections for people who are allergic to penicillin.
  • Available in generic.
  • Available as a liquid for those who have trouble swallowing.
  • Vibramycin (doxycycline) is safe for people age 65 or older and those who have kidney problems.
  • Available as a generic medicine.
  • Treats a variety of bacterial infections.
  • Can be taken with or without food.
  • Might be a good treatment option for people with kidney problems.
  • Needs to be taken only once a day.
Downsides
  • Vibramycin (doxycycline) makes your skin more sensitive to the sun.
  • Vibramycin (doxycycline) can make some birth control less effective, so you may have to use barrier methods (like condoms) while on it.
  • Vitamins, iron supplements, or antacids can't be taken at the same time as Vibramycin (doxycycline).
  • Vibramycin (doxycycline) can cause severe diarrhea that is usually watery and bloody, as late as up to 2 months after finishing the medicine.
  • People with diabetes need to check their blood sugar levels regularly while taking Avelox (moxifloxacin).
  • Cannot be taken at the same time as antacids or vitamins.
  • Avelox (moxifloxacin) can increase your skin's sensitivity to sunlight and make you more likely to get a rash.
  • Relatively more expensive compared to similar alternatives.
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Used for
Dosage forms
  • Pill
  • Delayed release pill
  • Liquid
  • Pill
Price
Lowest price
$7.78
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Lowest price
$14.65
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Reviews
112 reviews so far
49%
saidit'sworth it
36%
saiditworked well
24%
saidit'sa big hassle

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Side effects
The Vibramycin (doxycycline) FDA package insert doesn’t have numbers about how common side effects are.
8possible side effects
  • Nausea
    7%
  • Diarrhea
    6%
  • Headache
    4%
  • Dizziness
    3%
  • Vomiting
    2%
  • Constipation
    2%
  • Stomach pain
    2%
  • Insomnia
    2%
See more detailed side effects
Risks and risk factors
  • Color changes in teeth of young children and unborn babies
    • Age 8 or younger
    • Women in their last half of pregnancy
    • Infants
  • Severe diarrhea
    • Using Vibramycin (doxycycline) for a long period of time
  • Sunburn or rash
    • Being in the sun for a long period of time
    • Using tanning salons
  • Harm to fetus (unborn baby)
    • Women who can potentially or want to become pregnant
    • Pregnant women
See more detailed risks and warnings
  • Tendon rupture and inflammation
    • People over age 60
    • Taking steroid medicine
    • Those with kidney, heart, or lung transplants
  • Myasthenia gravis
    • Those with a history of myasthenia gravis
  • Diarrhea
  • Nerve damage
  • Changes in mood and behavior
  • Effects on heartbeat
    • Those with a history of heart rhythm problems
    • Taking other medicines that also affect your heart rhythm
    • Those with liver problems
See more detailed risks and warnings
Learn more about Vibramycin (doxycycline)
Learn more about Avelox (moxifloxacin)