Phenolsulfonphthalein (Injection)

Phenolsulfonphthalein is used as a test to help identify issues or diseases related to the kidneys. This test checks how well your kidneys are functioning.

Phenolsulfonphthalein mostly leaves the body through urine. By measuring the amount of phenolsulfonphthalein in your urine, your doctor can find out if your kidneys are working correctly.

How the test is done: After you have emptied your bladder, phenolsulfonphthalein will be given by injection. Then, you will need to empty your bladder into a container one or more times after receiving the medicine. The amount of this medicine in your urine will be measured. The results of the test will then be analyzed. The method for conducting the phenolsulfonphthalein test may vary between patients. Some patients may receive the phenolsulfonphthalein injection in a vein, while others may get it in a muscle.

It is very important that you completely empty your bladder and collect all the urine when asked. If any urine is left or lost, it will affect the test results.

Phenolsulfonphthalein should only be used under a doctor's supervision.

In deciding to use a diagnostic test, any risks of the test must be balanced against the benefits it will provide. This is a decision you and your doctor will make together. Additionally, other factors may influence test results. For this test, the following should be taken into account:

Allergies

Inform your doctor if you have ever had any unusual or allergic reactions to this medicine or any other medicines. Also, let your healthcare professional know if you have any other types of allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, carefully read the label or package ingredients.

Pediatric

There is no specific information comparing the use of phenolsulfonphthalein in children to its use in other age groups, but phenolsulfonphthalein is not expected to cause different side effects or problems in children than it does in adults.

Geriatric

Many medicines have not been specifically studied in older individuals. As a result, it may not be known whether they work exactly the same way in older adults as they do in younger adults. Although there is no specific information comparing the use of phenolsulfonphthalein in elderly patients with use in other age groups, this medicine is not expected to cause different side effects or problems in older individuals than it does in younger adults.

Interactions with Medicines

While some medicines should not be used together at all, in other cases, two different medicines may be used together even if there is a chance of an interaction. In such cases, your doctor may adjust the dose, or other precautions may be needed. Inform your healthcare professional if you are taking any other prescription or nonprescription (over-the-counter [OTC]) medicines.

Interactions with Food/Tobacco/Alcohol

Certain medicines should not be used at or around the time of eating food or specific types of food due to possible interactions. Consuming alcohol or tobacco with certain medicines may also lead to interactions. Discuss with your healthcare professional how to use your medicine with food, alcohol, or tobacco.

Other Medical Problems

The presence of other medical problems may influence the use of this diagnostic test. Be sure to tell your doctor if you have any other medical conditions, especially:

• Gout or
• Liver disease or
• Multiple myeloma (a kind of cancer)—These conditions may affect how quickly the body eliminates phenolsulfonphthalein

• Heart or blood vessel disease or
• Severe kidney disease—Patients with these conditions are at a higher risk of becoming ill because of the large amount of liquids that must be consumed for this test.

Along with its intended effects, this medicine may cause some unwanted effects. Although this medicine usually does not cause side effects, tell your health care professional right away if you notice wheezing or a skin rash or itching shortly after it is given.

Other side effects not listed may also happen in some patients. If you notice any other effects, consult your healthcare professional.

Call your doctor for medical advice about side effects. You can report side effects to the FDA at 1-800-FDA-1088.

Dosing

The dose of this medicine will be different for different patients. Follow your doctor's orders or the directions on the label. The following information includes only the average doses of this medicine. If your dose is different, do not change it unless your doctor tells you to do so.

The amount of medicine that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine.