Note: This document contains side effect information about chlorzoxazone. Some of the dosage forms listed on this page may not apply to the brand name Lorzone.
Applies to chlorzoxazone: oral tablet
Along with its needed effects, chlorzoxazone (the active ingredient contained in Lorzone) may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.
Check with your doctor immediately if any of the following side effects occur while taking chlorzoxazone:
Get emergency help immediately if any of the following symptoms of overdose occur while taking chlorzoxazone:
Symptoms of overdose
Some side effects of chlorzoxazone may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:
Applies to chlorzoxazone: compounding powder, oral tablet
Adverse reactions such as gastrointestinal disturbances, drowsiness, dizziness, or lightheadedness may occur.
Frequency not reported: Gastrointestinal disturbances, gastrointestinal bleeding
Rarely skin hypersensitivity type reactions such as skin rashes, petechiae, and ecchymosis have develop; extremely rare reports of angioneurotic edema and anaphylactic reactions have been received.
Frequency not reported: Allergic-type skin rashes, petechiae, ecchymosis, angioneurotic edema, anaphylactic reactions
Frequency not reported: Drowsiness, dizziness, light-headedness, malaise, and overstimulation.
Urine discoloration attributed to a phenolic metabolite have been reported; the clinical significance of this is unknown.
Rare (less than 0.1%): Urine discoloration
Medically reviewed by BestRx Medical Team Last updated on 1/1/2020.
Source: Drugs.com Lorzone