Medically Reviewed by Cheryl Mearig, PharmD.
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Doxycycline is an antibiotic that is used to treat respiratory, skin, and dental bacterial infections, and some sexually transmitted diseases.
Sometimes, the antibiotic can be used for the prevention of malaria while traveling overseas.2
US brand names for doxycycline include the following:1
Doxycycline is available in capsule and tablet form. You need to get a prescription from your doctor to use it.
Typically, the dose is 200 mg taken daily in divided doses.4 Only take doxycycline as prescribed. Do not take it more or less often than your doctor advises.
It is important to complete the entire course of antibiotics prescribed. For example, if your doctor prescribes doxycycline for one week, take it for the full week as directed.
Do not stop the antibiotic before the course of treatment is over. If you have concerns about the medication, talk to your doctor.
If you experience severe side effects from taking the medication, contact your doctor immediately. It is also essential to tell your doctor about any other medications you are taking that may interact with doxycycline.
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There are some side effects and risks associated with doxycycline.
Consult your doctor before taking doxycycline if you have a history of any of the following:
For most people, the side effects of doxycycline are mild and include:
Some people are sensitive to doxycycline and can have more severe side effects.
It is important to report any of the following signs or symptoms to a doctor or healthcare professional as soon as possible:
Rarely, people can develop symptoms of a severe allergic reaction to doxycycline.
Signs and symptoms include:
If this occurs, call 911 and seek medical attention immediately.
Doxycycline carries the risk of side effects including nausea, vomiting, headaches, and dizziness. These side effects have the potential of being worsened by drinking alcohol.
Alcohol needs to be strictly avoided with certain antibiotics, including metronidazole and tinidazole, due to the possibility of severe reactions.
While alcohol may not interfere with doxycycline’s efficacy, it is generally advised to limit alcohol while taking antibiotics to avoid increasing the incidence of unwanted adverse effects.
The immune system is complex. Alcohol disrupts normal immunological pathways. This results in a decrease in the body’s ability to protect itself from infection and a slower healing process.
Excessive alcohol use is linked to a number of illnesses and diseases because it weakens your immune system over time.6 These include increased susceptibility to pneumonia and respiratory tract infections, greater likelihood of acute respiratory distress syndrome (ARDS), liver disease, and poor wound healing.6
It is best to avoid consuming alcohol while taking antibiotics. Search for a substitute for alcohol instead.
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Some medicines may interact with doxycycline, increasing the chance of adverse effects or decreasing the antibiotic’s effectiveness.
Talk to your doctor if you are taking any of the following:4
When you have finished your course of treatment, you can resume drinking alcohol.
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