Diarrhea, nausea, vomiting, or upset stomach may occur. If any of these effects last or get worse, tell your doctor or pharmacist promptly. Show
Remember that this medication has been prescribed because your doctor has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects. Use of this medication for prolonged or repeated periods may result in oral thrush or a new yeast infection. Contact your doctor if you notice white patches in your mouth, a change in vaginal discharge, or other new symptoms. This medication may rarely cause a severe intestinal condition due to a bacteria called C. difficile. This condition may occur during treatment or weeks to months after treatment has stopped. Tell your doctor right away if you develop: diarrhea that doesn't stop, abdominal or stomach pain/cramping, blood/mucus in your stool. If you have these symptoms, do not use anti-diarrhea or opioid products because they may make symptoms worse. A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing. This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist. In the US - Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or at www.fda.gov/medwatch. In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345. Thanks for visiting! GoodRx is not available outside of the United States. If you are trying to access this site from the United States and believe you have received this message in error, please reach out to [email protected] and let us know. A tooth infection is a pocket of pus (abscess) caused by the proliferation of bacteria. Usually, an abscess appears in the pulp—the soft, living tissue inside a tooth. A periapical abscess develops from an infection in the pulp that forms an abscess at the root of a tooth, while a periodontal abscess develops between the tooth and the surrounding gum tissue. Symptoms of a tooth infection may include a severe toothache, sensitivity to heat and cold, swollen glands, swelling in the gums, foul-smelling breath, and pain while chewing. If the infection spreads to the surrounding bones, it may become life-threatening. Your dentist may prescribe antibiotics to clear up your tooth infection. Learn more about antibiotics for tooth infections, including why they are used and how fast they work. Athima Tongloom / Moment / Getty Images When Are Antibiotics Used for a Tooth Infection?Tooth infections don’t always require antibiotics. In many cases, they may clear up on their own. Rinsing with warm saltwater or taking over-the-counter medicines, such as non-steroidal anti-inflammatory drugs (NSAIDs), may help to reduce tooth pain and swelling. The American Dental Association (ADA) recommends that dentists avoid prescribing antibiotics for most tooth infections due to potential side effects. Dental treatments, such as drainage, deep cleaning, or a root canal (removing the infected pulp from the tooth), may sometimes be necessary. However, your dentist may prescribe antibiotics if you are immunocompromised (have a weakened immune system) or if your tooth infection is spreading. Some of the signs that your tooth infection is getting worse may include:
If left untreated, a tooth infection may spread to the surrounding bones and tissues. This can lead to serious health complications, including:
If you have a severe tooth infection, your dentist may prescribe a course of antibiotics to prevent it from spreading. Antibiotics may prevent tooth loss and other serious health complications. When to See a DentistIt’s important to seek dental treatment right away if you suspect you might have a tooth infection. Make an appointment with your dentist if you have a toothache that doesn’t go away, if your gums are red and inflamed, or if you notice a pimple-like bubble along your gum line. Taking AntibioticsYour dentist can diagnose you with a tooth infection with a thorough physical examination. Your healthcare provider may tap your teeth or ask you to bite down to assess your level of pain. They may also perform imaging tests, such as dental X-rays. If your tooth infection is severe or persistent, your dentist may prescribe antibiotics. The goals of taking antibiotics for a tooth infection are to prevent tooth loss and other serious health complications. According to the ADA, the first-line antibiotics for a tooth infection include:
Amoxicillin and penicillin V potassium are both in a class of antibiotics known as penicillin-type drugs. They work to fight infections by killing bacteria or stopping its growth. Penicillin-type drugs won’t work to treat viral infections. If you are allergic to penicillin-type drugs, your dentist may prescribe one of the following antibiotics instead:
Azithromycin, clindamycin, and cephalexin are all commonly used to treat bacterial infections. Penicillin, Amoxicillin, and Cephalosporin Allergy: What to Know DosageThe current ADA recommendations for antibiotic dosage for tooth infections are as follows:
DurationThese are the current ADA recommendations for the duration of a course of antibiotics for a tooth infection:
Some of your tooth infection symptoms should begin to clear up after two to three days. However, it’s important to take the full course of antibiotics as your dentist prescribes. Taking AntibioticsIt’s important to take antibiotics exactly as prescribed, even if you start feeling better quickly. If you stop taking antibiotics too early, your infection may linger. You could also raise your risk of developing a bacterial infection that is resistant to antibiotics. Common Antibiotics Used for a Tooth InfectionPenicillin-type drugs, such as amoxicillin and penicillin V potassium, are typically the first-line antibiotics that dentists prescribe to treat a tooth infection. However, allergic reactions to penicillins are common. If you have a history of allergy symptoms (such as hives, swelling, or low blood pressure) after taking penicillin-type drugs, let your dentist know. They may prescribe a macrolide antibiotic, such as clindamycin, to clear up your infection. In some cases, your dentist may prescribe another type of antibiotic, such as:
These drugs are typically prescribed if other antibiotics don’t work to treat your symptoms or if your tooth infection begins to spread. Side EffectsSome of the most common side effects of antibiotics may include:
Seek immediate medical help if you experience any serious side effects while taking antibiotics, such as:
Should I Go to a Hospital or a Dentist for My Dental Emergency? PreventionA tooth abscess may sometimes be caused by a cracked or chipped tooth, an injury, or failed dental work. However, in most cases, tooth infections are caused by tooth decay. The best way to prevent a tooth infection is to practice good oral hygiene. Here are some ways to protect your teeth from cavities and gum disease:
SummaryA tooth infection is a pocket of pus that develops inside a tooth's pulp due to the multiplication of bacteria. Tooth infections are usually caused by tooth decay, failed dental work, broken or chipped teeth, or injury. Not all tooth infections require treatment with antibiotics. However, a dentist may sometimes prescribe antibiotics to save the tooth and prevent the infection from spreading. The most common antibiotics used to treat tooth infections are penicillin-type drugs (such as amoxicillin and penicillin V potassium). Clindamycin, azithromycin, and cephalexin are options for people who have a history of allergies to penicillin. If first-line drugs don't work, metronidazole may be prescribed. Possible side effects of antibiotics for tooth infections may include nausea, diarrhea, yeast infection, changes in taste, and headache. More serious side effects, such as rash, hives, swelling, joint pain, and fever, require immediate medical attention. A Word From VerywellWhen tooth pain starts you may be tempted to delay calling a dentist. But a tooth infection can lead to serious health complications if left untreated. Talk to your dentist right away if you suspect that you have a tooth abscess. Frequently Asked Questions
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