Penicillin G

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Molecule Description

Penicillin G is an antibiotic and is used in treating different types of bacterial infections of the skin, ear, nose, throat, chest, bone, private parts, etc. It is also known as benzylpenicillin. It should be taken as directed by the physician, at the correct doses, and for the exact duration prescribed. Do not stop taking it abruptly, as it may result in treatment failure and recurrence of the infection; thus, you should always complete the course of the treatment. You may experience diarrhoea as the most common side effect after taking this medicine. However, not everyone experiences this side effect. Consult your doctor if diarrhoea persists or worsens. Before using, inform the doctor if you are pregnant, planning a pregnancy, or are breastfeeding, and about your detailed medical history.

Uses

Penicillin G is used to treat various types of bacterial infections such as skin infections, respiratory tract infections, dental infections, infection of tonsils and throat, lung infections, urinary tract infections, sexually transmitted infections, etc.

Contraindications

When should one not use Penicillin G

If you are allergic to Benzylpenicillin or Penicillin G.
If you have a history of an allergic reaction to other Penicillins or Cephalosporins.

Side effects

Common side effects of this drug are:

Nausea
Vomiting
Diarrhoea
Skin rashes

Precautions and Warnings

Pregnancy

There is limited information about the effects of the Penicillin G on pregnancy, thus you should avoid taking this medicine unless advised by your doctor.

Breast Feeding

It is unknown if this medicine passes into breast milk, hence you should consult your doctor before using Penicillin G while breastfeeding.

Driving

It has no or negligible effect on your ability to drive.

Alcohol

You should avoid consuming alcohol while on treatment with Penicillin G as alcohol is known to worsen infections.

Other General Warnings

Talk to your doctor if

You have any problems with your liver or kidneys.
You are suffering from any heart disease.
You experience any severe allergic reaction or side effects after taking Penicillin G.
You have diabetes.
You are pregnant or think you might be pregnant.
You are breastfeeding.

Mode of Action

How Does It Work?

Penicillin G works by inhibiting the enzymes called Penicillin-Binding Proteins (PBPs), which help to form a bacterial cell wall, thus causing bacteria's death and preventing the worsening of infection.

Interactions

Interactions with other medicines

Penicillin G may interact with other medicines, discuss it with your doctor about all the medicines, supplements or herbal preparations you are taking. Also, you should inform your doctor if you have a planned surgery or any vaccination scheduled.
The use of oral contraceptives along this medicine may alter its effects and may result in an unwanted pregnancy.
Other medicines like probenecid, methotrexate, allopurinol, neomycin, warfarin should be used with caution along with this medicine.
You should let the doctor or the laboratory person know that you are using this medicine while going for a lab test, as this medicine may interfere with the lab tests.

Dosage

Overdose

If you think you have taken too much, contact your doctor immediately or visit your nearest hospital.

Missed a Dose

If you have missed taking any dose of Penicillin G take it as soon as you remember it. However, if it's time for your next dose, then skip the missed dose and continue with your regular dosing schedule. Do not take a double dose of this medicine to compensate for the missed one.

Frequently Asked Questions (FAQs)

Penicillin G is used to treat various types of bacterial infections such as skin infections, respiratory tract infection, dental infections, infection of tonsils and throat, lung infection, urinary tract infections, sexually transmitted infections, etc.

No, you should never stop taking Penicillin G until it is advised by the doctor, even if you are feeling good. If you discontinue the treatment before completing the course, your symptoms may reoccur.

Yes, Penicillin G may cause diarrhoea as its side effect.

No habit-forming tendencies have been reported with Penicillin G. But you should take it only in doses as prescribed by the doctor.

Yes, the Penicillin G will help in treating urinary tract infection (UTI) caused by various bacterial organisms. Use it strictly as prescribed by your physician.

Nausea, vomiting, diarrhoea, skin rashes are a few common side effects of Penicillin G.

The dose and frequency of Penicillin G will be depending upon the type and severity of infection. Do not modify the dose on your own without consulting a doctor.

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