Chloracol Side Effects

Generic name: chloramphenicol

Medically reviewed by Drugs.com. Last updated on Sep 14, 2023.

Note: This document contains side effect information about chloramphenicol. Some dosage forms listed on this page may not apply to the brand name Chloracol.

Applies to chloramphenicol: powder for solution.

Serious side effects of Chloracol

Along with its needed effects, chloramphenicol (the active ingredient contained in Chloracol) may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Stop taking chloramphenicol and get emergency help immediately if any of the following effects occur:

Rare

- in babies only

• Bloated stomach
• drowsiness
• gray skin color
• low body temperature
• uneven breathing
• unresponsiveness

Check with your doctor immediately if any of the following side effects occur while taking chloramphenicol:

Less common

• Pale skin
• sore throat and fever
• unusual bleeding or bruising
• unusual tiredness or weakness (the above side effects may also occur up to weeks or months after you Stop taking chloramphenicol)

Rare

• Confusion, delirium, or headache
• eye pain, blurred vision, or loss of vision
• numbness, tingling, burning pain, or weakness in the hands or feet
• skin rash, fever, or difficulty in breathing

Other side effects of Chloracol

Some side effects of chloramphenicol 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:

Less common

• Diarrhea
• nausea or vomiting

For Healthcare Professionals

Applies to chloramphenicol: compounding powder, injectable powder for injection, oral capsule.

Hematologic

Very rare (less than 0.01%): Aplastic anemia

Frequency not reported: Drug-induced bone marrow depression, blood dyscrasias (aplastic anemia, hypoplastic anemia, thrombocytopenia, granulocytopenia), reversible dose-related bone marrow depression (characterized by vacuolization of erythroid cells, reduction of reticulocytes, leukopenia), agranulocytosis, bone marrow failure, pancytopenia, thrombocytopenic purpura, increased bleeding time, aplastic anemia resulting in leukemia, paroxysmal nocturnal hemoglobinuria, hemolysis^[Ref]

Hypersensitivity

Frequency not reported: Hypersensitivity reactions (including fever, macular and vesicular rashes, angioedema, urticaria, anaphylaxis), allergic skin reactions, hypersensitivity myocarditis^[Ref]

Dermatologic

Frequency not reported: Angioedema, macular and vesicular rashes, urticaria, contact dermatitis

Gastrointestinal

Frequency not reported: Nausea, vomiting, glossitis, stomatitis, diarrhea, enterocolitis, dry mouth, antibiotic-associated pseudomembranous colitis, Clostridioides difficile-associated diarrhea^[Ref]

Nervous system

Frequency not reported: Headache, peripheral neuritis, encephalopathy, ototoxicity, sensorineural hearing loss^[Ref]

Psychiatric

Frequency not reported: Mild depression, mental confusion, delirium

Ocular

Frequency not reported: Optic neuritis, transient blindness, blurred vision, optic neuritis leading to blindness

Cardiovascular

Frequency not reported: Cardiomyopathy, grey syndrome, acidotic cardiovascular collapse^[Ref]

Grey syndrome has been reported in neonates, premature infants, and infants; in most cases, therapy with this drug was started within the first 48 hours of life. Symptoms first appeared after 3 to 4 days of continued therapy with high doses and appeared in the following order: abdominal distension (with or without emesis), progressive pallid cyanosis, vasomotor collapse (often with irregular respiration), death within a few hours after onset of symptoms. In at least 1 case, grey syndrome was reported in a neonate whose mother had received this drug during labor. High serum drug levels (greater than 90 mcg/mL) have been associated with grey syndrome and large doses have been associated with a rapidly fatal course. Symptoms were often reversible with complete recovery when this drug was discontinued immediately.^[Ref]

Other

Frequency not reported: Fever, fungal superinfection^[Ref]

Immunologic

Frequency not reported: Herxheimer reactions

Herxheimer reactions have been reported during treatment of typhoid fever.

Hepatic

Frequency not reported: Hepatitis^[Ref]

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Some side effects may not be reported. You may report them to the FDA.

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