Megapen Injection
By Megapen
Rx
1 Injection in a Vial

Composition
Ampicillin(75mg) + Cloxacillin(NA)

Manufacturer - Aristo Pharmaceuticals Pvt Ltd
Mercantile Chamber, 3rd Floor, 12, J.N. Heredia Marg, Ballard Estate, Mumbai – 400 001, India.

Expires on or after
December, 2025
About Megapen Injection
Megapen Injection is a powerful combination medicine that is specifically designed to combat various types of bacterial infections throughout the body. These infections can range from respiratory tract infections to skin, urinary tract, and even ear and throat infections. The medicine contains two key antibiotics: Ampicillin and Cloxacillin. These antibiotics work by disrupting the formation of bacterial cell walls, which are crucial for the survival of harmful bacteria. By targeting this essential process, Megapen Injection effectively eliminates the bacteria, helping to treat and prevent the spread of bacterial infections.
It is vital to note that Megapen Injection should only be administered under the close supervision of a healthcare professional. It is crucial not to miss any scheduled appointments for taking this medication. Even if you start feeling better, it is essential to complete the entire course of treatment as prescribed by your doctor. Abruptly stopping the treatment can impact the effectiveness of the medicine and may lead to a resurgence of the infection.
It is common to experience some side effects while on this medication, such as nausea, vomiting, diarrhea, and indigestion. These side effects are generally mild and may not require medical intervention. However, if any side effects worsen or if you develop signs of an allergic reaction, such as rashes, itching, or swelling, it is imperative to seek immediate medical attention.
Before starting the treatment with Megapen Injection, inform your healthcare provider about any other medications you are taking and your overall health condition. Pregnant and breastfeeding women should consult with their doctor before using this medication. It is advisable to abstain from alcohol consumption while on this treatment to avoid potential side effects. Additionally, adequate rest, a healthy diet, and sufficient hydration are essential for a prompt recovery. Your doctor may also recommend laboratory tests to monitor the effects of the medicine on your body and ensure optimal treatment outcomes.
Benefits
Megapen Injection, a powerful combination of antibiotics - Ampicillin and Cloxacillin, offers a range of benefits in the treatment of bacterial infections. These antibiotics work synergistically to combat infections by disrupting the formation of the protective covering of bacteria, essential for their survival. By targeting a broad spectrum of bacteria, both gram-positive and gram-negative, Megapen Injection proves effective in treating infections of the ear, lungs, skin, nose, urinary tract, and throat.
Patients can expect to experience improvement in their condition within a few days of starting Megapen Injection. However, it is crucial to complete the full prescribed course even if symptoms alleviate early. This ensures that all bacteria causing the infection are eradicated, reducing the risk of developing antibiotic resistance.
Megapen Injection is known for its efficacy in effectively tackling bacterial infections and providing relief to patients. With its dual-action formula and ability to target various types of bacteria, Megapen Injection stands as a trusted choice for combating bacterial infections and promoting quick recovery.
How to use the Megapen Injection
When using Megapen 1 gm Injection, it is important to have a qualified healthcare professional such as your doctor or nurse administer the medication. It should not be self-administered. The injection will be given either into a vein (intravenously) or a muscle (intramuscularly). The appropriate dose and duration of treatment will be determined by your doctor based on factors like your age, weight, and the specific condition being treated. It is essential to follow your doctor's instructions carefully to ensure you receive the correct dosage and achieve the best possible outcome.
Uses of Megapen Injection
Megapen Injection is primarily used for treating bacterial infections in various parts of the body. It is effective in fighting respiratory tract infections, stomach infections, urinary tract infections, and fever associated with bacterial infections. Additionally, it is used for treating serious conditions such as blood poisoning caused by bacteria and inflammation of the endocardium. Megapen Injection is beneficial in combating a range of bacterial infections, providing relief and aiding in the recovery process for individuals affected by these conditions.
What conditions Megapen Injection treats?
Bacterial infections occur when harmful bacteria enter the body, multiply, and cause infection. Symptoms may include chills, fever, headache, nausea, vomiting, diarrhea, abdominal pain, and loss of appetite. Individuals with weakened immune systems or those taking immunosuppressive medications are at higher risk for bacterial infections. These infections can affect any part of the body and spread rapidly, impacting anyone, regardless of age or health status.
Should you consult a doctor?
It is important to seek medical advice before receiving Megapen 1gm Injection if you have glandular fever and/or leukaemia, blood related disorder/disease, diabetes, HIV infections, low immunity, or are on a low salt diet. These conditions may require special attention or monitoring when using the injection. If you experience any unusual symptoms or side effects after receiving the injection, it is recommended to consult with your doctor promptly. Be proactive in seeking medical help if you have any concerns regarding your health condition or response to the medication.
Side effects of Megapen Injection
The Megapen Injection may cause various side effects, although most of them are not serious and tend to subside as your body gets used to the medication. However, if these side effects persist or concern you, it is advisable to consult your doctor. Common side effects may include allergic reactions, rash, stomach pain, nausea, diarrhea, vomiting, flatulence, mouth sores, and skin rash. Stop the Megapen Injection and seek immediate medical attention if you experience severe allergic reactions such as skin redness, swelling of the face, difficulty breathing, joint pains, kidney problems, or fever. Delayed allergic reactions may manifest as rashes, joint pains, or enlarged lymph nodes. Skin reactions like erythema multiforme, itchy patches on the skin, hive-like swelling, tender areas on the mouth and private parts, fever, and tiredness should also be reported promptly. Additionally, watch out for severe skin reactions, changes in skin color, blistering, pustules, or peeling, as well as symptoms like fever, chills, headache, body pains, or signs of infection. Inflammation of the colon with bloody diarrhea, yellowing of the skin or eyes, severe diarrhea with bleeding, anemia, kidney inflammation, weakness, hearing difficulties, decreased blood cell counts, or unexplained weight loss may also occur as side effects of Megapen Injection.
Safety advice

liver
When using Megapen Injection, it is important to be cautious if you have liver disease. Patients with liver issues may require a dose adjustment when using this medication. It is crucial to consult your doctor before starting Megapen Injection. Additionally, regular monitoring of liver function tests is recommended while taking this medicine to ensure safety and effectiveness.

kidney
Caution should be exercised when using Megapen Injection in patients with kidney disease. Adjusting the dosage may be necessary, and regular monitoring of kidney function tests is recommended. Please consult your doctor for guidance.

alcohol
When taking Megapen Injection, it is safe to consume alcohol as it does not lead to any harmful effects. No specific safety advice is mentioned regarding alcohol consumption with Megapen Injection.

driving
When using Megapen Injection, it is unlikely to impair your ability to drive.

pregnancy
Megapen Injection is generally safe during pregnancy, based on animal studies. Limited human studies suggest low risk to the baby.

breastfeeding
Megapen Injection is considered safe during breastfeeding. Limited data shows no significant risk to the baby.
Age above 75(Geriatrics)
Age below 6 months(Pediatrics)
Consumption warning before consuming Megapen Injection
Before using Megapen 1 gm Injection 1's, tell your doctor if you are allergic to penicillin antibiotics. Notify your doctor if you have diabetes, HIV, or kidney/liver issues. Consult your doctor if pregnant or breastfeeding. Avoid alcohol when using Megapen to prevent side effects. Do not mix Megapen with food or milk. Inform your doctor about your health and medications to avoid any negative effects.
Disease interactions
It's important to inform your doctor if you have had colitis, diabetes, or HIV infections before using Megapen Injection. Colitis refers to inflammation in the lining of the intestine or colon, which can affect how your body responds to medications. Similarly, diabetes and HIV infections can also impact how your body metabolizes and reacts to drugs. By sharing this information with your doctor, they can determine the best course of treatment and ensure that Megapen Injection is safe and effective for you.
What if you forgot to take Megapen Injection?
If you happen to miss a dose of Megapen Injection, try to take it as soon as you remember. But if it's almost time for your next scheduled dose, it's best to just skip the missed dose and continue with your regular dosing schedule. Avoid taking a double dose to make up for the missed one. It's important to stay on track with your prescribed dosing regimen to maintain the effectiveness of the medication.
What happens if you take overdose of Megapen Injection?
It is unlikely to receive an overdose of MEGAPEN 1GM INJECTION because it will only be administered by a doctor or nurse in a hospital. However, it is important to be aware of the symptoms of overdose in case they occur. If you experience unusual symptoms such as nausea, vomiting, diarrhea, limb weakness, numbness, loss of memory, loss of vision, or severe headache, especially if you have kidney problems, it is important to consult your doctor or nurse immediately. These symptoms may indicate that you have received a very high dose of the medication.
Related lab tests
The main lab tests that are related to Megapen Injection are the Complete Blood Count (CBC) and Peripheral Smear Examination.
A Complete Blood Count (CBC) provides important information about the different types of cells in the blood, such as red blood cells, white blood cells, and platelets. This test helps in understanding if there are any abnormalities in the blood, such as anemia or infections. It also provides valuable information about the overall health of the patient's blood.
On the other hand, a Peripheral Smear Examination is a procedure where a sample of blood is examined under a microscope to check the appearance and shape of the blood cells. This test helps in identifying any abnormalities in the size, shape, or number of blood cells. It can provide important insights into conditions such as anemia, infections, or certain blood disorders.
These lab tests, CBC and Peripheral Smear Examination, are essential in monitoring the effects of Megapen Injection on the blood and overall health of the patients. Regular monitoring of these tests can help in ensuring the safety and efficacy of the treatment.
Additional Information
Habit Forming | No |
Chemical Class | - |
Therapeutic Class | ANTI INFECTIVES |
Action Class | - |
FAQs
Disclaimer
The information provided on this website is to the best of our abilities to ensure it is accurate, reliable, and reviewed by a team of professionals. It should not be used to diagnose, prevent, or cure any health problem. The information presented here is not intended to create a doctor-patient relationship or replace a registered medical practitioner's advice, diagnosis, or treatment. The absence or provision of any information or warning regarding any medicine should not be assumed as an implied or explicit assurance of safety or efficacy. We highly recommend consulting your registered medical practitioner for all queries or doubts related to your medical condition. Do not ignore professional medical advice or delay seeking it based on the content encountered on our website. We intend to support, not replace, the doctor-patient relationship.
₹10.4
₹11.55
9.96% OFF
Inclusive of all taxes
Content verified by

Dr. Archana Prabhakar
MBBS, M.Med (Family Medicine)
Last update on 11-Feb-2025