What is this medicine?
PENICILLIN G BENZATHINE (pen i SILL in G BEN za thine) is a penicillin antibiotic. It is used to treat certain kinds of bacterial infections. It is also used to prevent a recurrence of rheumatic fever or Sydenham's chorea. It will not work for colds, flu, or other viral infections.
This medicine may be used for other purposes; ask your health care provider or pharmacist if you have questions.
COMMON BRAND NAME(S): Bicillin L-A, Permapen
What should I tell my health care provider before I take this medicine?
They need to know if you have any of these conditions:
- kidney disease
- an unusual or allergic reaction to penicillin G benzathine, any penicillin or cephalosporin antibiotic, other medicines, foods, dyes, or preservatives
- pregnant or trying to get pregnant
How should I use this medicine?
This medicine is for injection into a muscle. It is usually given by a health care professional in a hospital or clinic setting.
Talk to your pediatrician regarding the use of this medicine in children. While this drug may be prescribed for selected conditions, precautions do apply.
Overdosage: If you think you have taken too much of this medicine contact a poison control center or emergency room at once.
NOTE: This medicine is only for you. Do not share this medicine with others.
What if I miss a dose?
This does not apply.
What may interact with this medicine?
- birth control pills
- ethacrynic acid
- some antibiotics like chloramphenicol, erythromycin, sulfamethoxazole, tetracycline
- typhoid vaccine
This list may not describe all possible interactions. Give your health care provider a list of all the medicines, herbs, non-prescription drugs, or dietary supplements you use. Also tell them if you smoke, drink alcohol, or use illegal drugs. Some items may interact with your medicine.
What should I watch for while using this medicine?
Tell your doctor or healthcare professional if your symptoms do not start to get better or if they get worse.
Do not treat diarrhea with over the counter products. Contact your doctor if you have diarrhea that lasts more than 2 days or if it is severe and watery.
This medicine can interfere with some urine glucose tests. If you use such tests, talk with your health care professional.
What side effects may I notice from receiving this medicine?
Side effects that you should report to your doctor or health care professional as soon as possible:
- allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue
- breathing problems
- dark urine
- fever with headache, flushing
- muscle cramps
- pain or difficulty passing urine
- red spots on the skin
- redness, blistering, peeling or loosening of the skin, including inside the mouth
- unusual bleeding or bruising
- unusually weak or tired
Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):
- pain where injected
- stomach upset
This list may not describe all possible side effects. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
Where should I keep my medicine?
This drug is given in a hospital or clinic and will not be stored at home.
NOTE: This sheet is a summary. It may not cover all possible information. If you have questions about this medicine, talk to your doctor, pharmacist, or health care provider.
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