Cysteine (Intravenous)

Medically reviewed by Drugs.com. Last updated on Mar 16, 2022.

Commonly used brand name(s)

In the U.S.

Nouress

Available Dosage Forms:

Solution

Therapeutic Class: Amino Acid Supplement

Uses for cysteine

Cysteine injection is used to meet the nutritional requirements of newborn infants (including preterm babies) requiring total parenteral nutrition (TPN).

Cysteine injection is also given to adults and children with severe liver disease who may have impaired enzymatic processes and require TPN. Cysteine may be also used to provide a more complete profile of amino acids for protein synthesis.

Cysteine is to be given only by or under the direct supervision of your doctor.

Before using cysteine

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 cysteine, the following should be considered:

Allergies

Tell your doctor if you have ever had any unusual or allergic reaction to cysteine 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 cysteine injection in children. However, children are more likely to have immature kidney and liver functions, which may require caution in patients receiving cysteine.

Geriatric

Appropriate studies on the relationship of age to the effects of cysteine injection have not been performed in the geriatric population. Safety and efficacy have not been established.

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.

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

Interactions with food/tobacco/alcohol

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.

Cysteine Intravenous