Mr. Ibrahem/Diflunisal
Clinical data
Trade namesDolobid, others
AHFS/Drugs.comMonograph
MedlinePlusa684037
Pregnancy
category
  • AU: C
Routes of
administration
By mouth
Drug classNSAID[1]
Legal status
Legal status
  • AU: S4 (Prescription only)
  • UK: POM (Prescription only)
  • US: ℞-only
Pharmacokinetic data
Bioavailability80-90%
Protein binding>99%
MetabolismLiver
Onset of actionWithin an hour[1]
Elimination half-life8 to 12 hours
Duration of actionUp to 12 hours[2]
ExcretionKidney
Identifiers
  • 2',4'-difluoro-4-hydroxybiphenyl-3-carboxylic acid
Chemical and physical data
FormulaC13H8F2O3
Molar mass250.201 g·mol−1
3D model (JSmol)
  • O=C(O)c1cc(ccc1O)c2ccc(F)cc2F
  • InChI=1S/C13H8F2O3/c14-8-2-3-9(11(15)6-8)7-1-4-12(16)10(5-7)13(17)18/h1-6,16H,(H,17,18) checkY
  • Key:HUPFGZXOMWLGNK-UHFFFAOYSA-N checkY
  (verify)

Diflunisal, sold under the brand name Dolobid among others, is an nonsteroidal anti-inflammatory drug (NSAID) used to treat pain, fever, and inflammation.[1][2] Specifically it is used for mild to moderate pain.[1] Onset is within an hour with duration of effects of up to 12 hours.[1][2] It is taken by mouth.[1]

Common side effects include nausea, upset stomach, tiredness, ringing in the ears, and rash.[1] Severe side effects may include heart problems, high blood pressure, swelling, kidney problems, and gastrointestinal bleeding.[1] Use in the later part of pregnancy may harm the baby.[1] It is a derivative of salicylic acid.[1]

Diflunisal was developed by Merck Sharp & Dohme in 1971, and came into medical use in the United States in 1982.[3] It is available as a generic medication.[4] In the United States 60 tabs of 500 mg costs about 33 USD as of 2021.[5]

References edit

  1. ^ a b c d e f g h i j k l "Diflunisal Monograph for Professionals". Drugs.com. Archived from the original on 8 August 2020. Retrieved 16 July 2021.
  2. ^ a b c Dowd, Frank J.; Yagiela, John A.; Johnson, Bart; Mariotti, Angelo; Neidle, Enid A. (19 March 2010). Pharmacology and Therapeutics for Dentistry - E-Book. Elsevier Health Sciences. p. 337. ISBN 978-0-323-07824-5. Archived from the original on 28 August 2021. Retrieved 16 July 2021.
  3. ^ Adams SS (1999). "Ibuprofen, the propionics and NSAIDs: personal reflections over four decades". Inflammopharmacology. 7 (3): 191–7. doi:10.1007/s10787-999-0002-3. PMID 17638090. S2CID 11074565.
  4. ^ Nitzki-George, Diane (September 2003). Generic Alternatives to Prescription Drugs. Basic Health Publications, Inc. p. 343. ISBN 978-1-59120-098-7. Archived from the original on 2021-08-28. Retrieved 2021-07-16.
  5. ^ "Diflunisal Prices, Coupons & Savings Tips - GoodRx". GoodRx. Archived from the original on 3 November 2016. Retrieved 16 July 2021.