Polymyxin B injection is used to treat bacterial infections in many different parts of the body.
Polymyxin B belongs to the group of medicines known as antibiotics. It works by killing bacteria or preventing their growth. However, this medicine will not work for colds, flu, or other virus infections.
This medicine is to be given only by or under the direct supervision of a doctor.
A nurse or other trained health professional will give you or your child this medicine. This medicine is given as a shot into a muscle or a vein. It can also be given as a shot into your back.
Drink extra fluids so you will pass more urine while you or your child are using this medicine. This will keep your kidneys working well and help prevent kidney problems.
In deciding to use a medicine, the risks of taking the medicine must be weighed against the good it will do. This is a decision you and your doctor will make. For this medicine, the following should be considered:
Tell your doctor if you have ever had any unusual or allergic reaction to this medicine or any other medicines. Also tell your health care professional if you have any other types of allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, read the label or package ingredients carefully.
Appropriate studies performed to date have not demonstrated pediatric-specific problems that would limit the usefulness of polymyxin B injection in children.
No information is available on the relationship of age to the effects of polymyxin B injection in geriatric patients.
There are no adequate studies in women for determining infant risk when using this medication during breastfeeding. Weigh the potential benefits against the potential risks before taking this medication while breastfeeding.
Although certain medicines should not be used together at all, in other cases two different medicines may be used together even if an interaction might occur. In these cases, your doctor may want to change the dose, or other precautions may be necessary. When you are receiving this medicine, it is especially important that your healthcare professional know if you are taking any of the medicines listed below. The following interactions have been selected on the basis of their potential significance and are not necessarily all-inclusive.
Using this medicine with any of the following medicines may cause an increased risk of certain side effects, but using both drugs may be the best treatment for you. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.
Certain medicines should not be used at or around the time of eating food or eating certain types of food since interactions may occur. Using alcohol or tobacco with certain medicines may also cause interactions to occur. Discuss with your healthcare professional the use of your medicine with food, alcohol, or tobacco.
Other Medical ProblemsTOP
The presence of other medical problems may affect the use of this medicine. Make sure you tell your doctor if you have any other medical problems, especially:
- Kidney disease, severe—Use with caution. The effects may be increased because of slower removal of the medicine from the body.
It is important that your doctor check your or your child's progress during and after treatment. This is to make sure that the infection is cleared up completely, and to allow your doctor to check for any unwanted effects. Blood and urine tests may be needed to check for unwanted effects.
If your or your child's symptoms do not improve within a few days, or if they become worse, check with your doctor.
Polymyxin B injection may cause diarrhea, and in some cases it can be severe. It may occur 2 months or more after you stop using this medicine. Do not take any medicine to treat diarrhea without first checking with your doctor. Diarrhea medicines may make the diarrhea worse or make it last longer. If you have any questions about this or if mild diarrhea continues or gets worse, check with your doctor.
Check with your doctor right away if you feel weak, irritable, drowsy, trouble seeing, numbness or tingling of the arms or legs, or other problems with muscle control.
Do not take other medicines unless they have been discussed with your doctor. This includes prescription or nonprescription (over-the-counter [OTC]) medicines and herbal or vitamin supplements.