RightAnswer Knowledge Solutions Search Results for Dapsone

New Search  |  Search Results (Dapsone)  |  Index of Example Chemical Results Pages
register now
RightAnswer Knowledge Solutions provides access to hundreds of data sources. Our premier and proprietary sources include fully-researched documents from well-established experts in the chemical and HazMat fields.

A search in our system for this chemical would return results – all in one place -- in the following categories from the listed data sources.
  • Chemical Identification
  • Environmental Hazards
  • First Aid/Medical Treatment
  • Handling/Storage/Shipping/Waste Management
  • MSDS Documents
  • Personal Protection
  • Physical Hazards/Corrective Response Actions
  • Physical/Chemical Properties
  • Regulatory/Standards/Labels
  • Report Abstracts and Studies
  • Reproductive Risk
  • Toxicology/Health Hazards/Exposure
Example of Acute Exposure data from MEDITEXT.

RightAnswer Proprietary Data Sources:

HAZARDTEXT™ Documentshelp
MEDITEXT® Documentshelp

All Other Data Sources:

CCRIS Documentshelp
DART Documentshelp
ECOTOX Documentshelp
Fisher MSDShelp
HSDB® Data Bankhelp
LOLI® Listingshelp
NTP - Developmental Study Abstractshelp
NTP - Immunology Toxicology Study Abstractshelp
NTP - Long-Term Studieshelp
REPROTOX® Documentshelp
RTECS® Registryhelp
TERIS Documentshelp

ChemID External Links:

Other Government Links Searched via RegsKnowledge:

State Environmental Regulationshelp
CFR Regulationshelp

Example Content from MEDITEXT for Dapsone:

Please note: this is an extract of information from a larger document. Full document and details are available by subscription.


  1. USES: Dapsone is an sulfone antimicrobial that is used as a topical gel for acne and as an oral tablet for leprosy, dermatitis herpetiformis, and Pneumocystis carinii pneumonia.
  1. PHARMACOLOGY: It is a competitive antagonist of para-aminobenzoic acid (PABA), and thus inhibits normal bacterial utilization of PABA for folic acid synthesis.
  1. TOXICOLOGY: the primary toxic effects are due to its P-450 metabolites. Dapsone metabolites oxidize the ferrous iron hemoglobin complex to the ferric state, resulting in methemoglobinemia. These metabolites can sulfate the pyrrole hemoglobin ring in an irreversible reaction, resulting in sulfhemoglobinemia. Finally, oxidative stress with depletion of glutathione may contribute to hemolysis.
  1. EPIDEMIOLOGY: Dapsone is not widely used in the United States, and thus significant exposures are rare.
    1. ADVERSE EFFECTS: ORAL: Adverse reactions from oral formulations include: hematologic abnormalities, seen in greater than 10% of patients and include hemolysis (usually dose related and may occur in patients with and without G6PD deficiency), decreases in hemoglobin (1 to 2 g/dL [observed in most patients]), reticulocyte increases from 2% to 12%, methemoglobinemia, and a shortened red blood cell life span. Other potential adverse reactions from oral formulations may include: tachycardia, fever, headache, insomnia, psychosis, vertigo, dermatologic effects (eg, bullous or exfoliative dermatitis, erythema nodosum, morbilliform or scarlatiniform reactions, phototoxicity, Stevens-Johnson syndrome, toxic epidural necrolysis and urticaria), hypoalbuminemia without proteinuria, abdominal pain, nausea, vomiting, pancreatitis, agranulocytosis, anemia, leucopenia, cholestatic jaundice, hepatitis, drug-induced lupus erythematosus, lower motor neuron toxicity (prolonged drug therapy), peripheral neuropathy (rare), blurred vision, tinnitus, albuminuria, nephritic syndrome, renal papillary necrosis, interstitial pneumonitis, pulmonary eosinophilia, and an infectious mononucleosis-like syndrome (ie, rash, fever, lymphadenopathy, and hepatic dysfunction). TOPICAL: Reported adverse reactions from topical formulations include: facial edema, depression, psychosis, suicide attempt, tonic clonic movements, abdominal pain, pancreatitis, vomiting, and sinusitis.
    1. MILD TO SEVERE TOXICITY: Hemotoxicity (eg, hemolytic anemia, methemoglobinemia, sulfhemoglobinemia), tachycardia, hypertension, agitation, hallucinations, confusion, nausea, vomiting, diarrhea, hepatotoxicity, hematuria, cold perspiration and blue-gray cyanosis may develop following overdose. Cases of dapsone toxicity have all occurred following oral exposure; significant toxicity is very unlikely from dermal exposure.
© 2011-2021 RightAnswer.com, Inc. and/or its licensors. All rights reserved. No claim to original U.S. Govt. works.