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Medically Reviewed by Cheryl Mearig, PharmD.
Cephalexin, sold under the brand name Keflex, is an antibiotic that treats bacterial infections in both children and adults. It belongs to a class of medicines called cephalosporin antibiotics and works by killing bacteria.3
Cephalexin is available as a prescription medication. It can’t be purchased over the counter. It comes in different formulations, including tablets, capsules, and a powder for liquid suspension.
Pregnant women may take cephalexin as it’s considered to be safe and effective for treating acute bacterial infections during pregnancy. A small amount of cephalexin may be excreted into breast milk, but it’s not considered unsafe for nursing babies.2
Cephalexin kills bacteria that cause infections of the respiratory tract, ears, skin, bone, and genitourinary tract.4
Cephalexin won’t work for viral infections such as the common cold or flu.
Like other medications, cephalexin can cause certain side effects:
Serious side effects of cephalexin that may require urgent medical attention include:
Rarely, some people may have a serious allergic reaction that causes rash, hives, swelling of the mouth, lips, and tongue, and trouble breathing. If this occurs, call 911 and seek medical help immediately.
Cephalexin may interact with other medications such as metformin and blood thinners. It’s important to tell your doctor about your health history or if you’re taking any other medications or supplements.
Cephalexin needs to be taken for the full course of treatment. Failure to take all the prescribed medication can lead to antibiotic resistance.
There is no reported interaction between alcohol and cephalexin. However, drinking alcohol while on an antibiotic such as cephalexin is not generally advised.
Some people experience unpleasant side effects when taking cephalexin such as headache, nausea, and diarrhea. These side effects can be made worse with alcohol use.
It’s generally recommended to avoid alcohol while treating infections as alcohol can make you feel worse regardless of its impact on the antibiotic’s effectiveness.
Some antibiotics, such as metronidazole, can cause serious adverse reactions when taken with alcohol. In these cases, alcohol should be strictly avoided.6
An article on Insider Health revealed that drinking alcohol while taking antibiotics can weaken the immune system; thus, making it harder for the body’s defense system to fight off infection.7
Drinking alcohol while taking antibiotics must be done with caution. Alcohol can cause severe adverse reactions.
Alcohol should be avoided with the following antibiotics:
Cephalexin has side effects that overlap with those of alcohol consumption. Mixing cephalexin and alcohol may worsen side effects like:
It’s best to avoid drinking alcohol when taking cephalexin or any other antibiotics. Alcohol can impede your body’s natural immune system response, resulting in a slower healing time or worsening symptoms.
People with alcohol use disorder drink excessively, which can result in negative health consequences. It’s important to seek help and treat your alcohol addiction quickly to avoid worsening symptoms or long-term health problems.
Below are some treatment options for alcohol use disorder (AUD) and addiction:
People with alcohol addiction frequently need rehabilitation to recover from their addiction.
Inpatient care involves admitting the patient into the rehabilitation facility and undergoing intensive care and monitoring.
Outpatient care works around the patient’s schedule and doesn’t require them to stay overnight.
This therapy is focused on Youth Alcohol Recovery and involves contacting and engaging the family of the young person with AUD. The aim is to determine the root cause of the addiction and help the physician determine the best treatment option.
The use of medicines, also called medication-assisted treatment, is another effective treatment option for AUD. Disulfiram (Antabuse) may help prevent drinking. Other medications, like Naltrexone and Acamprosate, can help treat alcohol addiction.
The need for continuous support after undergoing intensive treatment is essential. Joining a support group can help you recover from your addiction and help you cope with lifestyle changes and relapse management.
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