Common Penicillin uses
This medicine is a penicillin antibiotic used to treat or prevent bacterial infections.
 

Before using Penicillin
Some medicines or medical conditions may interact with this medicine. INFORM YOUR DOCTOR OR PHARMACIST of all prescription and over-the-counter medicine that you are taking. DO NOT TAKE THIS MEDICINE if you are also taking tetracycline antibiotics. ADDITIONAL MONITORING OF YOUR DOSE OR CONDITION may be needed if you are taking anticoagulants, birth control pills, or methotrexate. Inform your doctor of any other medical conditions, allergies, pregnancy, or breast-feeding. Contact your doctor or pharmacist if you have any questions or concerns about taking this medicine.
 

Penicillin Directions
Follow the directions for using this medicine provided by your doctor. This medicine is best absorbed when taken on an empty stomach (1 hour before or 2 hours after meals), but may be taken with food. STORE THIS MEDICINE at room temperature, away from heat and light. TO CLEAR UP YOUR INFECTION COMPLETELY, continue taking this medicine for the full course of treatment even if you feel better in a few days. Do not miss any doses. IF YOU MISS A DOSE OF THIS MEDICINE, take it as soon as possible. If it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not take 2 doses at once.
 

Penicillin Cautions
DO NOT TAKE THIS MEDICINE IF YOU HAVE HAD A SEVERE ALLERGIC REACTION to a penicillin antibiotic (such as amoxicillin, ampicillin) or a cephalosporin antibiotic (such as Ceclor, Keflex, Ceftin, Duricef). A severe reaction includes a severe rash, hives, breathing difficulties, or dizziness. If you have a question about whether you are allergic to this medicine, contact your doctor or pharmacist. If your symptoms do not improve within a few days or if they become worse, check with your doctor. IF YOU EXPERIENCE difficulty breathing or tightness of chest, swelling of eyelids, face, or lips, or develop a rash or hives, tell your doctor immediately. Do not take any more of this medicine unless your doctor tells you to do so. FOR WOMEN TAKING BIRTH CONTROL PILLS: this medicine may decrease the effectiveness of your birth control pills. Use an additional form of birth control to prevent pregnancy while you are taking this medicine. THIS MEDICINE IS EXCRETED IN BREAST MILK. IF YOU ARE OR WILL BE BREAST-FEEDING while you are using this medicine, check with your doctor or pharmacist to discuss the risks to your baby.
 

Possible side effects of Penicillin
SIDE EFFECTS, that may go away during treatment, include nausea, vomiting, mild diarrhea, or irritation of mouth or throat. If they continue or are bothersome, check with your doctor. CHECK WITH YOUR DOCTOR AS SOON AS POSSIBLE if you experience skin rash, hives, or vaginal irritation or discharge. If you notice other effects not listed above, contact your doctor, nurse, or pharmacist.
 

Drug interactions
Drug interactions can result in unwanted side effects or prevent a medicine from doing its job. Use our drug interaction checker to find out if your medicines interact with each other. Check drug interactions
 

If you take too much Penicillin
If overdose is suspected, contact your local poison control center or emergency room immediately. Symptoms of overdose may include nausea, vomiting, and diarrhea.
 

Additional Penicillin information
DO NOT SHARE THIS MEDICINE with others for whom it was not prescribed. DO NOT USE THIS MEDICINE for other health conditions. KEEP THIS MEDICINE out of the reach of children.