Article · Wikipedia archive · Last revised Jul 3, 2026

Mebhydrolin

Mebhydrolin (INN) or mebhydroline is an antihistamine. It is not available in the United States, but it is in various other countries under the brand names Bexidal (BD) and Diazolin (RU). It is used for symptomatic relief of allergic symptoms caused by histamine release, including nasal allergies and allergic dermatosis.

Last revised
Jul 3, 2026
Read time
≈ 1 min
Length
231 w
Citations
6
Source
Mebhydrolin
Clinical data
Other names9-Benzyl-2-methyl-2,3,4,9-tetrahydro-1H-gamma-carboline, Incidal, Omeril, Diazolin, Fabahistin, mebhydrolin napadisylate, mebhydroline 1,5-naphthalenedisulfonate1
AHFS/Drugs.comInternational Drug Names
Pregnancy
category
  • Not established2
Routes of
administration
Oral2
ATC code
Legal status
Legal status
  • In general: ℞ (Prescription only)
Identifiers
  • 5-benzyl-2-methyl-3,4-dihydro-1H-pyrido[4,3-b]indole
CAS Number
  • 524-81-2 checkY
    6153-33-9 (1,5-naphthalenedisulfonate salt)3
PubChem CID
ChemSpider
UNII
KEGG
CompTox Dashboard (EPA)
ECHA InfoCard100.007.606
Chemical and physical data
FormulaC19H20N24
Molar mass276.383 g·mol−1
3D model (JSmol)
  • CN3Cc4c1ccccc1n(Cc2ccccc2)c4CC3
  • InChI=1S/C19H20N2/c1-20-12-11-19-17(14-20)16-9-5-6-10-18(16)21(19)13-15-7-3-2-4-8-15/h2-10H,11-14H2,1H3 checkY
  • Key:FQQIIPAOSKSOJM-UHFFFAOYSA-N checkY
 X markNcheckY (what is this?)  (verify)

Mebhydrolin (INN) or mebhydroline is an antihistamine. It is not available in the United States, but it is in various other countries under the brand names Bexidal (BD) and Diazolin (RU). It is used for symptomatic relief of allergic symptoms caused by histamine release, including nasal allergies and allergic dermatosis.

Mebhydrolin has been shown to magnify the performance-deficit effects of alcohol.5

References

References

  1. "Mebhydroline". National Library of Medicine - Medical Subject Headings. US National Institutes of Health, National Library of Medicine. Retrieved 2007-03-02.
  2. "FABAHISTIN 50 mg (Tablets)". South African Electronic Package Inserts. September 1970. Archived from the original on October 17, 2006. Retrieved 2007-03-02.
  3. "Diazoline". National Library of Medicine - Medical Subject Headings. US National Institutes of Health, National Library of Medicine. Archived from the original on January 19, 2016. Retrieved 2007-03-02.
  4. "Mebhydrolin chemical information". PubChem. Retrieved 2007-03-02.
  5. Franks HM, Lawrie M, Schabinsky VV, Starmer GA, Teo RK (October 1981). "Interaction between ethanol and antihistamines: 3. mebhydrolin". Med. J. Aust. 2 (9): 477–9. doi:10.5694/j.1326-5377.1981.tb112944.x. PMID 6119605. S2CID 11034501.