Best Online Pharmacies in USA

Megapin - 250 + 250 mg

Megapin - 250 + 250 mg (Megapen)

Availability: In stock

Quick Overview

Ampicillin Cloxacillin

    Pack SizePrice
Megapin - 250 + 250 mg $7.2200New
US Brand NameMegapen
Strength 250 + 250 mg
Generic NameAmpicillin Cloxacillin
Manufacturer Aristo
Pharmaceutical FormCapusles


Megapin - 250 + 250 mg

This drug constitutes a generic name Ampicillin Cloxacillin which is a combination penicillin antibiotic medicine used to provide an extended line of effectiveness, specifically against penicillin-resistant infections. It is made up of two active ingredients i.e. Ampicillin and Cloxacillin. This medicine is used to combat against various bacterial infections like middle ear infections, upper and lower respiratory tract infections, gastro intestinal infections, skin and soft tissue infections (boils, infections due to insect bites, impetigo a bacterial skin infection characterized by small pus filled blisters, and endocarditis inflammation of the lining of the heart and its valves).    

This drug is marketed under various trade names; few of them are Megapen and Clamp (made by Dr. Reddy).

Important information about Ampicillin Cloxacillin

Do not consider Ampicillin and Cloxacillin antibiotic medication (Megapen, Clamp) in use if you have known allergy to it, or Cloxacillin or to other penicillin antibiotic medicines including amoxicillin, dicloxacillin, oxacillin, or penicillin, and others. Before taking this medicine, inform your physician to cephalosporin antibiotics such as Cefaclor, Cefuroxime Axetil, Cephalexin, Cefadroxil, and others. Also, notify your doctor if you have any medical conditions: liver or kidney disease, inflammatory bowel disease or ulcerative colitis, leukemia, glandular fever, or if you are taking other medicines. In case, if you are pregnant or breast feeding woman, take this medicine upon your doctor advice. Oral contraceptives may not be as effective as usual methods while you are on the treatment with Ampicillin and Cloxacillin. It is generally recommended that you should use non hormonal form of contraceptive such as (condoms, spermicidal, or diaphragm) while taking Ampicillin and Cloxacillin.

Complete the full course of medicine even if your symptoms are clear or gone off.  Not taking this medicine as per the full line course prescribed by your physician or doctor can worsen your conditions and cause serious problems which are drug resistant. It will not treat viral infection such as common cold and flu.

Before taking Ampicillin and Cloxacillin

Always keep in mind that Ampicillin and Cloxacillin is a prescription based medicine and available only with a doctor’s advice. You must consult your doctor before taking this medicine to make sure that it is safe for you. Take care of all the above mentioned precautions and discuss all the conditions with your doctor and clear your doubts which you may have about this medicine. 

Dosage information

Take Ampicillin and Cloxacillin drug as prescribed by your doctor. Follow all the direction listed on the leaflet of your medicine. Do not alter the dosage unless your doctor advises you to do so. Also, do not take this medicine after the prescription period is over. Always store the medicine in a cool and dry place.    

Note: Ampicillin and Cloxacillin dosage depends on lots of factors like age, sex, drug allergies, or seriousness of the condition, your doctor may fix the dosage by examining you properly. Strictly follow the dosage instruction prescribed by your doctor. 

What if you miss a dose?

In case you missed a dose, take it as early as you remember. Skip the dose if next dose time is close. Don’t double up the dose in order to compensate the missed one.  

What if you overdose?

In case of an overdose of Ampicillin and Cloxacillin, seek emergency medication because it can cause severe side effects.  Overdose can cause nausea, vomiting, stomach pain, diarrhea, skin rash, drowsiness, and hyperactivity.

Things to avoid

Antibiotics can cause diarrhea hence, do not take any diarrhea medication without asking your doctor. Follow any other restrictions on food, drugs or activities as recommended by your doctor.

Side Effects

Diarrhea, nausea, and vomiting are some common side effects caused by Ampicillin and Cloxacillin. If any of these effects persists or deteriorate, consult your doctor on the immediate basis. In some rare cases, it may unlikely cause serious side effects such as persistent/bloody diarrhea (Clostridium difficile-associated diarrhea), dark urine, persistent nausea/vomiting, severe stomach/abdominal pain, yellowing eyes/skin, easy bruising/bleeding, new signs of infection (fever, persistent sore throat), or unusual tiredness. Seek medical attention urgently if you experience any serious side effects. These are not all the side effects mentioned above. There may be others as well.

Interaction with other drugs

Many other drugs can interact with Ampicillin and Cloxacillin, some of them are: allopurinol, probenecid, chloroquine, phenytoin, antacids, blood thinner such as warfarin, and another antibiotic (for the same or a different infection). You must inform your doctor in advance if you may be using these medicines. Always consult your doctor about starting a new medication.


For Daily Medicine is a trusted online pharmacy network from where you can purchase all kinds of generic medicines at highly competitive prices. You can buy Megapin- 250 + 250 mg medicine and other antibiotics online to ensure maximum benefits.   







Not reviews on this Product