Clarithromycin
About Clarithromycin
Clarithromycin is a prescription medicine used to treat a wide variety of bacterial infections. It works by stopping the growth of bacteria in the body, making it highly effective for respiratory tract infections, throat infections, and skin issues. Doctors frequently prescribe this antibiotic to help clear up these temporary infections quickly and completely.
To get the best results, you must take Clarithromycin at regular intervals and complete the entire course prescribed by your doctor, even if you start feeling better. You can take this oral medication with or without food, though taking it with a meal can help prevent an upset stomach. While recovering, drinking plenty of water and getting adequate rest will support your immune system's healing process.
While taking Clarithromycin, you may experience mild stomach irritation, changes in taste, or nausea. These symptoms are usually temporary, but you must contact your doctor immediately if you develop serious side effects like severe, watery diarrhoea, yellowing of the eyes or skin, or an irregular heartbeat.
Do not take this if you have a history of severe allergic reactions to macrolide antibiotics or if you suffer from certain heart rhythm disorders. It is also important to talk to your doctor before starting Clarithromycin if you have a history of liver disease, kidney problems, or myasthenia gravis.
Certain medications, including some cholesterol-lowering drugs and blood thinners, can interact poorly with Clarithromycin, so you should avoid drinking alcohol during treatment to prevent liver strain. If you are pregnant, breastfeeding, or an older adult, consult your doctor or pharmacist to ensure this medicine is safe for you.
Uses of Clarithromycin
• Treatment of Respiratory Infections: Clarithromycin is commonly prescribed to treat respiratory infections such as bronchitis and pneumonia caused by susceptible bacteria.
• Skin Infections: Clarithromycin effectively treats skin infections like cellulitis or impetigo, caused by bacterial pathogens.
• Sinusitis: Clarithromycin is used to manage acute bacterial sinusitis, relieving symptoms like nasal congestion and facial pain caused by bacterial infections.
• Otitis Media: Clarithromycin is frequently utilized to treat middle ear infections (otitis media), providing relief from ear pain and inflammation.
Medicinal Benefits
Clarithromycin helps eliminate bacterial infections at their source, allowing symptoms to improve and supporting a faster recovery.
- Effective bacterial infection control: Directly targets and stops the growth of susceptible bacteria, helping your body overcome infection.
- Relief from infection symptoms: Reduces symptoms such as fever, sore throat, cough, chest congestion, fatigue, and discomfort as the infection clears.
- Supports faster recovery: By treating the underlying cause of infection, it helps patients return to their normal activities sooner.
- Convenient dosing schedule: Its long-lasting action often allows for a simpler dosing routine compared with some other antibiotics.
- Helps treat stomach ulcer infections: When combined with other medications, it can successfully eradicate Helicobacter pylori, promoting ulcer healing and reducing the risk of recurrence.
- Reduces the risk of complications: Prompt treatment of bacterial infections may help prevent the infection from spreading or causing more serious health problems.
- Helps prevent antibiotic resistance: Completing the full prescribed course helps ensure the infection is fully cleared and reduces the likelihood of bacterial resistance developing.
Directions for Use
To ensure the medicine works effectively and helps clear your infection completely, take Clarithromycin exactly as prescribed by your healthcare provider.
- Swallow the tablet whole with a glass of water.
- Do not crush, chew, or break the tablet, as this can alter how the medicine is absorbed in your body.
- If you are taking the liquid suspension, shake the bottle well before each use.
- Measure the liquid dose carefully using the provided measuring device, oral syringe, or measuring cup rather than a household spoon.
- You can take this medicine with or without food.
- Taking Clarithromycin with food may help reduce stomach upset.
- Take the medication at the same time each day to maintain a steady level of the drug in your body.
- Complete the full course of treatment, even if you start feeling better before the medicine is finished.
- Do not skip doses or stop taking the medication without consulting your doctor.
- If you miss a dose, take it as soon as you remember unless it is nearly time for your next scheduled dose.
- Do not take two doses at the same time.
- Always follow your doctor's exact instructions regarding dosage and length of treatment.
Storage
Side Effects of Clarithromycin
Common Side Effects (Usually mild):
- Nausea or stomach discomfort
- Diarrhoea or loose stools
- Changes in your sense of taste (such as a temporary metallic taste)
- Headache
- Vomiting
Serious Side Effects (Call a doctor right away):
- Severe, persistent, or watery diarrhoea (which could indicate a serious bowel condition)
- Yellowing of your eyes or skin, dark urine, or severe abdominal pain (signs of liver damage)
- A fast, pounding, or irregular heartbeat
- Severe dizziness or fainting
- Signs of a serious allergic reaction, such as a skin rash, itching, swelling of the face, tongue, or throat, and difficulty breathing
Medicines Containing this Salt
View AllDrug Warnings
- Finish the entire prescription: Always complete the full course of therapy, even if you feel completely recovered after a few days, to prevent the bacteria from returning and becoming resistant.
- Watch for severe diarrhoea: If you develop severe, watery, or bloody diarrhoea during or up to several months after treatment, contact your doctor immediately; do not take anti-diarrhoea medications without medical advice.
- Check for drug interactions: Provide your doctor and pharmacist with a complete list of all medications, vitamins, and herbal supplements you are currently taking, as Clarithromycin interacts with many common drugs.
- Avoid grapefruit products: Do not consume grapefruit or grapefruit juice while taking this medication, as it can raise the levels of Clarithromycin in your blood and increase the risk of side effects.
- Monitor liver health: If you notice dark urine, pale stools, persistent nausea, or yellowing of the skin or eyes, stop taking the medication and seek medical attention immediately.
Drug Interactions
Drug-Drug Interactions
Clarithromycin can interact with a number of medications, potentially increasing side effects or altering how the medicines work. Inform your healthcare provider about all prescription medicines, over-the-counter products, and supplements you are taking before starting treatment.
- Statins (such as atorvastatin or simvastatin): Combining these with Clarithromycin can significantly increase the risk of severe muscle pain and muscle breakdown.
- Blood thinners (such as warfarin): Clarithromycin can increase the effects of blood thinners, raising your risk of bleeding.
- Heart rhythm medications (such as amiodarone or quinidine): Taking these together can increase the risk of dangerous, irregular heart rhythms.
- Colchicine: Clarithromycin can dangerously increase the levels of colchicine in your body, potentially leading to severe toxicity.
Drug-Food Interactions
Certain foods and beverages may affect how Clarithromycin is processed by your body or increase the likelihood of side effects.
- Grapefruit and Grapefruit Juice: Can slow down how your body processes Clarithromycin, leading to higher drug levels in your blood and an increased risk of side effects.
- Alcohol: While alcohol does not directly stop the antibiotic from working, it can increase side effects like dizziness and put extra strain on your liver during recovery.
Drug-Disease Interactions
Some medical conditions may affect the safety and effectiveness of Clarithromycin and may require closer monitoring during treatment.
- Heart Conditions (QT Prolongation): Do not take this medicine if you have a history of certain irregular heart rhythms or long QT syndrome, as it can worsen these conditions.
- Liver or Kidney Disease: People with severe liver or kidney impairment may require a lower dose or closer monitoring, as these organs are responsible for clearing the medicine from your body.
- Myasthenia Gravis: This antibiotic may worsen muscle weakness symptoms in individuals with this neuromuscular condition.
Drug-Drug Interactions Checker List:
Safety Advice
Alcohol
consult your doctorLimited information is available. Keep your doctor informed if you drink alcohol.
Pregnancy
cautionClarithromycin should be used in pregnant women only if clinically needed, and the benefits outweigh the risks.
Breast Feeding
cautionLet your doctor know if you are a nursing mother before taking Clarithromycin; your doctor will decide whether Clarithromycin can be taken by breastfeeding mothers or not.
Driving
consult your doctorNot enough scientific data available, hence it is advised to consult your doctor.
Liver
cautionClarithromycin to be taken with caution, especially if you have a history of liver diseases/conditions. The dose may have to be adjusted by your doctor.
Kidney
cautionClarithromycin to be taken with caution, especially if you have a history of kidney diseases/conditions. The dose may have to be adjusted by your doctor.
Children
safe if prescribedClarithromycin can be given safely to children above 6 months of age, with the dose to be adjusted and recommended by a child specialist only.
Habit Forming
Diet & Lifestyle Advise
- Stay Hydrated: Drink plenty of fluids, such as water, herbal teas, or clear broths. Hydration helps thin respiratory mucus and supports your body as it fights off infection.
- Protect Your Gut: Consider taking a probiotic supplement or eating fermented foods like yogurt with live cultures. Since Clarithromycin can temporarily disrupt your gut bacteria, probiotics can help maintain a healthy digestive balance (just space them a few hours apart from your antibiotic dose).
- Get Plenty of Rest: Avoid strenuous physical activities while recovering. Resting allows your immune system to direct its energy toward clearing the infection.
- Avoid Acidic Foods if Stomach is Upset: If you experience nausea or stomach irritation, avoid highly spicy, fatty, or acidic foods, which can worsen digestive discomfort.
Special Advise
Iron and antacids (like magnesium hydroxide and aluminium hydroxide) may bind to Clarithromycin in the gastrointestinal tract, lowering its efficiency. So, a gap of at least 2 hours should be maintained between the intake of Clarithromycin and iron supplements and antacids.
Patients Concern
Disease/Condition Glossary
Bacterial infections: A bacterial infection is a condition in which harmful bacteria enter, multiply, and infect our body. It can target any body part and multiply very quickly. When you get infected with bacteria, you can experience generalised symptoms like fevers, chills, and fatigue. Bacteria are of various forms, commonly spherical, rod, and spiral-shaped. Bacterial infections vary from minor illnesses like sore throat and ear infections to severe brain infections like meningitis and encephalitis. A few harmful bacteria that cause infections include Streptococcus, Staphylococcus, and E. coli. Anyone can become infected with a bacterial infection. However, people with weak immune systems or taking immunosuppressive medicine can be more prone to bacterial infection.
FAQs
Clarithromycin is used to treat bacterial infections, including chest infections, skin infections, and ear infections. Besides this, Clarithromycin is also used in combination with other medicines to treat duodenal ulcers caused by H. pylori.
Clarithromycin contains Clarithromycin (antibiotic). It inhibits the protein synthesis process required for the growth of the bacterial cell. As a result, bacterial cells are not able to reproduce and grow. Thus, Clarithromycin helps in the prevention of infections.
You should avoid taking iron supplements, multivitamins, calcium supplements, antacids, or laxatives within 2 hours before or after taking Clarithromycin. Avoid taking any other antibiotics containing Clarithromycin unless your doctor has prescribed you.
After taking antibiotics such as Clarithromycin, some people get thrush, a fungal infection. This is due to the fact that antibiotics kill the regular, harmless bacteria that serve to protect you from thrush.
Clarithromycin treats only bacterial infections. It will not work for viral infections (such as the common cold, flu).
No, Clarithromycin is a macrolide antibiotic. It can be taken by people who are allergic to penicillin with a doctor's advice only.
Side effects are rare with Clarithromycin and do not usually last long. They will get better after a day or two. If any side effects persist, reach out to the doctor immediately.
No, Clarithromycin should not be stopped even if you feel better, as it is an antibiotic medication and completing the full course is very necessary; otherwise, the infection might reappear in a more severe form.
It is highly recommended to avoid alcohol while taking Clarithromycin. Alcohol can worsen side effects like dizziness and nausea, and it can dehydrate your body, making it harder for your immune system to fight off the infection. Talk to your doctor or pharmacist if you have concerns.
Most people start to feel better within 24 to 48 hours of starting Clarithromycin. However, even if your symptoms disappear, you must complete the full prescribed course to ensure the infection is completely cleared. If you do not feel better after a few days, talk to your doctor.
Grapefruit and grapefruit juice can block the enzymes that break down Clarithromycin in your body. This can cause the drug to build up to unsafe levels in your system, increasing your risk of severe side effects. Talk to your doctor for further guidance.
A temporary metallic or altered taste in your mouth is a common and harmless side effect of Clarithromycin. It typically goes away once you finish your course of treatment. Chewing sugar-free gum or sucking on hard candies may help manage this symptom. If it becomes severe, talk to your doctor.
Clarithromycin is generally not recommended during pregnancy or breastfeeding unless your doctor decides the benefits outweigh the potential risks. Some studies suggest it may affect the developing baby. If you are pregnant, planning to become pregnant, or breastfeeding, talk to your doctor.
Yes, taking probiotics can help restore the healthy bacteria in your gut that may be disrupted by Clarithromycin. To prevent the antibiotic from killing the active probiotics, space them out by taking your probiotic at least two hours before or after your antibiotic dose. Talk to your doctor or pharmacist for recommendations.
Severe, watery, or bloody diarrhoea can be a sign of a serious secondary infection in your gut. Do not take any anti-diarrhoea medications, as they can make the condition worse. Stop taking the medicine if safe, and contact your doctor immediately.
Author Details
