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Pen VK is an oral tablet consisting of natural penicillin’s.  We carry the brand choice of this medication in 300mg!

Pen VK (Penicillin) is used to treat or prevent bacterial infections. Bacterial infections are caused by bacteria, a relatively complex, single-celled creature. They often have a rigid wall and a thin, rubbery membrane surrounding the fluid inside the cell and are capable of reproducing on their own. Bacteria can live in a variety of environments, such as extreme heat and cold, radioactive waste, and the human body and only less than 1% of bacteria actually cause diseases in people. Bacterial infections may cause short-lived infections (such as food poisoning), chronic infections that last weeks, months, or a lifetime (such as chronic gastritis), and latent infections, which may not show symptoms at first but may later on in life (such as latent tuberculosis). The symptoms of bacterial infections may vary depending on the location of the infection and the type; however, some general symptoms of bacterial infections include headache, stiff neck, fever, nausea or vomiting, confusion, or sensitivity to light.

Pen VK (penicillin) is effective at treating bacterial infections because of its ability to stop the growth of the bacteria. By doing this, it allows the immune system to clear up the infection much quicker and easier.

Use this medication exactly the way your doctor has prescribed it to you.

This medication should be taken on an empty stomach, at least 1 hour before or 2 hours following the dose. If this medication causes an upset stomach, you may take it with food.

For best effect; take this medication regularly and at evenly spaced times (e.g. every 12 hours or every 24 hours).

Continue taking this medication even if you think your condition has healed. Suddenly stopping this medication could cause the infection to come and may cause it to become harder to treat using medications.


Do not use Pen VK (Penicillin)

Do not use this medication if you are allergic to penicillin or similar drugs. Tell your doctor about all drug allergies you may have.

Dose adjustment or special precautions may be required

Before starting treatment, tell your doctor about all medical condition. More importantly, be sure to mention if you have kidney problems.


Penicillin may cause certain vaccines to become less effective. Do not have any immunizations or vaccinations during treatment unless directed to by your doctor.

This medication should only be used if absolutely needed during time of pregnancy. Consult your doctor if this concerns you.

This drug passes into breast milk. Consult your doctor before breast feeding.

Side Effects

Common side effects of Pen VK (penicillin) may include:

  • Upset stomach or throwing up.
  • Stomach pain or diarrhea.
  • Black, hairy tongue.

The above side effects should not alarm you.

Serious side effects of Pen VK (penicillin) may include:

  • Unusual tiredness.
  • Joint or muscle pain.
  • Easy bruising or bleeding.

If you have any of the above side effects, contact your doctor right away.

Contact your doctor if you notice signs of…

Severe intestinal condition (Clostridium difficile-associated diarrhea):stomach pain, cramps, or very loose, watery, or bloody stools. Check with your doctor before treating diarrhea.

Oral thrush or vaginal yeast infection: white patches in your mouth, a change in vaginal discharge or other new symptoms.


What is the average dose of this medication for an adult with streptococcal infection located in the upper respiratory tract?

The average dose for adults and children 12+ with streptococcal infection (moderate to severe) would be 125mg to 250mg every 6 to 8 hours for 10 days.

Is this product safe for children?

Yes, however, this drug should only be given to a child under the approval of a doctor.

What should I avoid while using this medication?

Avoid taking certain drugs during the time of treatment, such as methotrexate, tetracyclines, khat, guar gum. There may be other drugs that interact with penicillin that should also be avoid; consult your doctor for more information.

How should I store this product?

Keep this medication stored at room temperature, away from light, heat and moisture. Keep hidden from children and pets.

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