Description

Description

Penbritin 500mg is a prescription antibiotic manufactured by GSK Pakistan Limited, containing Ampicillin as its active ingredient. It belongs to the penicillin group of antibiotics, a long-established and widely trusted class of medicines used to fight bacterial infections. Penbritin works by disrupting the formation of bacterial cell walls, which stops the bacteria from surviving and multiplying, allowing the body’s immune system to clear the infection. The 500mg strength is often prescribed for infections that require a higher dose than the lower-strength option, or for patients whose doctor has determined that a stronger dose is appropriate for their particular infection. Each pack contains 100 capsules, providing enough supply to complete a full prescribed treatment course.

Ingredients

The active ingredient in each capsule is Ampicillin at a strength of 500mg. In addition to the active compound, the capsule contains standard inactive excipients, including fillers and stabilizing agents, which help maintain the capsule’s structure and support proper release and absorption of the medicine in the digestive system. These excipients do not have any antibacterial effect on their own.

Dosage Form

Penbritin 500mg is supplied as an oral capsule, manufactured to a precise strength for consistent and reliable dosing. Capsules should be swallowed whole with a glass of water and should not be opened, crushed, or chewed unless specifically instructed by a doctor.

Uses

Penbritin (Ampicillin) 500mg is commonly prescribed for bacterial infections such as:

• Respiratory Tract Infections: Including certain chest, throat, and sinus infections caused by bacteria sensitive to Ampicillin.
• Urinary Tract Infections: Helps clear bacterial infections of the bladder and urinary system.
• Ear, Nose, and Throat Infections: Used for certain bacterial infections affecting these areas when appropriate.
• Other Bacterial Infections: May also be prescribed for select gastrointestinal or other infections, depending on the doctor’s assessment.

This medicine works only against bacterial infections and has no effect on viral illnesses such as the common cold or influenza.

How to Use

Penbritin 500mg should be taken exactly as directed by your doctor, generally on an empty stomach — around an hour before meals or two hours after eating — since taking it with food can reduce how much of the medicine your body absorbs. Doses are usually spaced evenly across the day to maintain consistent antibiotic levels in the bloodstream. It is essential to complete the full prescribed course, even if you start feeling better partway through, since stopping early can allow the infection to return and may contribute to antibiotic resistance over time. If you miss a dose, take it as soon as you remember, unless it is nearly time for your next scheduled dose — in that case, skip the missed one rather than doubling up.

Side Effects

Most patients tolerate Penbritin well, though some side effects can occur. Commonly reported effects include diarrhea, nausea, vomiting, and mild stomach upset. A skin rash may also develop in some patients. Because Penbritin belongs to the penicillin family, there is a possibility of an allergic reaction, especially in individuals with a known sensitivity to penicillin-type antibiotics; warning signs of a serious allergic reaction include facial or throat swelling, difficulty breathing, or a widespread rash, all of which require immediate medical attention. Severe, persistent, or blood-stained diarrhea should also be reported to a doctor promptly, as it may point to a more significant reaction needing evaluation. This list is not exhaustive, and patients should refer to the official leaflet or consult their doctor or pharmacist for complete details.

Pregnancy & Breastfeeding

Penicillin antibiotics such as Ampicillin are generally regarded as an acceptable option during pregnancy when prescribed by a doctor, as extensive clinical experience has not shown a clear pattern of harm in pregnant women who are not allergic to penicillin. Even so, you should always tell your doctor if you are pregnant, planning a pregnancy, or breastfeeding so they can confirm this medicine suits your specific situation. Ampicillin is known to pass into breast milk in small amounts and is generally considered compatible with breastfeeding, although infants should be watched for mild effects such as loose stools or oral thrush. Any decision about starting or continuing this medicine during pregnancy or while breastfeeding should be made in consultation with your healthcare provider.

Storage Instructions

Store Penbritin capsules at room temperature, protected from direct sunlight, excessive heat, and moisture. Keep the capsules in their original packaging until they are needed, and make sure the container stays tightly closed. Store this medicine well out of the reach and sight of children and pets. Do not use capsules past their printed expiry date, and dispose of any unused or expired medicine responsibly rather than through regular household waste.

FAQS

Is the 500mg strength stronger than the 250mg one, and can I switch between them myself? Yes, the 500mg capsule contains double the active ingredient of the 250mg version. Never switch strengths or change your dose without your doctor’s specific instruction.

Why must I finish the entire course, even if I feel better sooner? Stopping early can allow remaining bacteria to survive and multiply, potentially causing the infection to return and increasing the risk of antibiotic resistance.

Should Penbritin be taken with or without food? It is generally best taken on an empty stomach, since food can reduce absorption. Always follow your doctor’s specific instructions for your prescription.

What should I do if a rash appears while I’m taking this medicine? Contact your doctor without delay, as a rash may occasionally signal an allergic reaction, particularly in patients with a history of penicillin sensitivity.

Disclaimer

Always use this medicine strictly according to your doctor’s instructions and prescribed dosage.