Protirelin (Diagnostic)

Brand Names : Relefact TRH

Before Having This Test

In deciding to use a diagnostic test, any risks of the test must be weighed against the good it will do. This is a decision you and your doctor will make. Also, test results may be affected by other things. For protirelin, the following should be considered:

Allergies - Tell your doctor if you have ever had any unusual or allergic reaction to protirelin. Also tell your health care professional if you are allergic to any other substances, such as foods, preservatives, or dyes.

Pregnancy - Studies have not been done in humans. However, studies in rabbits have shown that protirelin increases the chance of death of the fetus when given in doses 11/2 and 6 times the human dose.

Breast-feeding - Protirelin has not been reported to cause problems in nursing babies. However, it may cause extra swelling of the breasts and leaking of milk for up to 2 or 3 days after it is given.

Children - This medicine has been tested in children and, in effective doses, has not been shown to cause different side effects or problems in children than it does in adults.

Older adults - This medicine has been tested and has not been shown to cause different side effects or problems in older people than it does in younger adults.

Other medicines - 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. Tell your health care professional if you are taking any other prescription or nonprescription (over-the-counter [OTC]) medicine.

Other medical problems - The presence of other medical problems may affect the use of protirelin. Make sure you tell your doctor if you have any other medical problems, especially:

• Heart or blood vessel disease or
• High blood pressure or
• Stroke (history of) - Sudden changes in blood pressure caused by protirelin may put patients with these conditions at greater risk

• Kidney disease - Test results may be affected if patient has kidney disease

Preparation for This Test

Your doctor may ask you not to eat for several hours before the test or to eat a low-fat meal before the test. This will not be necessary for all patients. If it is necessary for you, follow your doctor's instructions carefully . Otherwise, this test may not work and may have to be done again.