Find a Drug
Advanced Search

Professional

Leucovorin Calcium

Side Effects & Drug Interactions
font size

SIDE EFFECTS

Allergic sensitization, including anaphylactoid reactions and urticaria, has been reported following the administration of both oral and parenteral leucovorin.

DRUG INTERACTIONS

Folic acid in large amounts may counteract the antiepileptic effect of phenobarbital, phenytoin and primidone, and increase the frequency of seizures in susceptible children.

Preliminary animal and human studies have shown that small quantities of systemically administered leucovorin enter CSF primarily as 5-methyltetrahydrofolate and, in humans, remain 1 to 3 orders of magnitude lower than usual methotrexate concentrations following intrathecal administration. However, high doses of leucovorin may reduce the efficacy of intrathecally administered methotrexate.

Leucovorin may enhance the toxicity of fluorouracil (see WARNINGS).

Brand Name: Leucovorin Calcium
Generic Name: Leucovorin Calcium Tablets

Report Problems to the Food and Drug Administration

 

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.


Bookmark this page:


Cancer

Get the latest treatment options.

WebMD Symptom Checker - Start Here Ringworm Slideshow: Watch and Learn

Cancer and ExerciseCancer and Exercise
Resting to conserve energy may not be the best remedy for fatigue during radiation therapy. See more WebMD Videos »