Before Using

Drug information provided by: Micromedex

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:

Allergies

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.

Pediatric

Appropriate studies performed to date have not demonstrated pediatric-specific problems that would limit the usefulness of glycerol phenylbutyrate in children. However, safety and efficacy have not been established in children 2 months up to 2 years of age. Use of glycerol phenylbutyrate is not indicated in children younger than 2 months of age.

Geriatric

Appropriate studies performed to date have not demonstrated geriatric-specific problems that would limit the usefulness of glycerol phenylbutyrate in the elderly. However, elderly patients are more likely to have kidney or liver problems, which may require caution and an adjustment in the dose for patients receiving glycerol phenylbutyrate.

Pregnancy

Information about this glycerol-phenylbutyrate-oral-route
Pregnancy Category Explanation
All Trimesters C Animal studies have shown an adverse effect and there are no adequate studies in pregnant women OR no animal studies have been conducted and there are no adequate studies in pregnant women.

Breastfeeding

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.

Drug Interactions

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 healthcare professional if you are taking any other prescription or nonprescription (over-the-counter [OTC]) medicine.

Other Interactions

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 Problems

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:

  • Intestinal malabsorption (trouble absorbing food in the intestines) or
  • Pancreatic insufficiency (trouble digesting food properly caused by lack of enzymes made by the pancreas)—May not work properly in patients with these conditions.
  • Kidney disease or
  • Liver disease, moderate to severe—Higher blood levels of glycerol phenylbutyrate may result and increase the risk of side effects.
  • Nerve problems—Use with caution. May make this condition worse.