Glycopyrronium bromide

Glycopyrronium bromide is a medication of the muscarinic anticholinergic group. It does not cross the blood–brain barrier and consequently has no to few central effects. It is available in by mouth, intravenous, topical, and inhalated forms. It is a synthetic quaternary ammonium.

Glycopyrronium bromide
Clinical data
Trade namesRobinul, Cuvposa, Seebri, Qbrexza, others
License data
Pregnancy
category
  • AU: B2
  • US: B (No risk in non-human studies)
    ATC code
    Legal status
    Legal status
    • AU: S4 (Prescription only)
    • US: ℞-only
    Identifiers
    CAS Number
    PubChem CID
    ChemSpider
    UNII
    KEGG
    CompTox Dashboard (EPA)
    ECHA InfoCard100.008.990
    Chemical and physical data
    FormulaC19H28BrNO3
    Molar mass398.335 g/mol g·mol−1
    3D model (JSmol)
    Glycopyrronium
    Clinical data
    AHFS/Drugs.comMonograph
    MedlinePlusa602014
    Pregnancy
    category
    • US: B (No risk in non-human studies)
      Routes of
      administration      		By mouth, intravenous, inhalation, topical
      ATC code
      Legal status
      Legal status
      Pharmacokinetic data
      Elimination half-life0.6–1.2 hours
      Excretion85% renal, unknown amount in the bile
      Identifiers
      CAS Number
      PubChem CID
      IUPHAR/BPS
      DrugBank
      ChemSpider
      UNII
      KEGG
      ChEMBL
      CompTox Dashboard (EPA)
      ECHA InfoCard100.008.990
      Chemical and physical data
      FormulaC19H28NO3+
      Molar mass318.431 g/mol g·mol−1
      3D model (JSmol)
       NY (what is this?)  (verify)

      It was developed by Sosei and licensed to Novartis in 2005. The cation, which is the active moiety, is called glycopyrronium (INN)[1] or glycopyrrolate (USAN).

      In June 2018, glycopyrronium was approved by the FDA to treat excessive underarm sweating, becoming the first drug developed specifically to reduce excessive sweating.[2]

      Medical uses

      In anesthesia, glycopyrronium injection can be used as a before surgery in order to reduce salivary, tracheobronchial, and pharyngeal secretions, as well as decreasing the acidity of gastric secretion. It is also used in conjunction with neostigmine, a neuromuscular blocking reversal agent, to prevent neostigmine's muscarinic effects such as bradycardia.

      It is also used to reduce excessive saliva (sialorrhea),[3][4][5] and Ménière's disease.[6]

      It decreases acid secretion in the stomach and so may be used for treating stomach ulcers, in combination with other medications.

      It has been used topically and orally to treat hyperhidrosis, in particular, gustatory hyperhidrosis.[7][8]

      In inhalable form it is used to treat chronic obstructive pulmonary disease (COPD). Doses for inhalation are much lower than oral ones, so that swallowing a dose will not have an effect.[9][10]

      Side effects

      Since glycopyrronium reduces the body's sweating ability, it can even cause hyperthermia and heat stroke in hot environments. Dry mouth, difficulty urinating, headaches, diarrhea and constipation are also observed side effects of the medication. The medication also induces drowsiness or blurred vision, an effect exacerbated by the consumption of alcohol.

      Pharmacology

      Mechanism of action

      Glycopyrronium blocks muscarinic receptors,[11] thus inhibiting cholinergic transmission.

      Pharmacokinetics

      Glycopyrronium bromide affects the gastrointestinal tracts, liver and kidney but has a very limited effect on the brain and the central nervous system. In horse studies, after a single intravenous infusion, the observed tendencies of glycopyrronium followed a tri-exponential equation, by rapid disappearance from the blood followed by a prolonged terminal phase. Excretion was mainly in urine and in the form of an unchanged drug. Glycopyrronium has a relatively slow diffusion rate, and in a standard comparison to atropine, is more resistant to penetration through the blood-brain barrier and placenta.[12]

      Research

      It has been studied in asthma.[13][14]

      References
      1. Bajaj V, Langtry JA (July 2007). "Use of oral glycopyrronium bromide in hyperhidrosis". Br. J. Dermatol. 157 (1): 118–21. doi:10.1111/j.1365-2133.2007.07884.x. PMID 17459043.
      2. "FDA OKs first drug made to reduce excessive sweating". AP News. Retrieved 2018-07-02.
      3. Mier RJ, Bachrach SJ, Lakin RC, Barker T, Childs J, Moran M (December 2000). "Treatment of sialorrhea with glycopyrrolate: A double-blind, dose-ranging study". Arch Pediatr Adolesc Med. 154 (12): 1214–8. doi:10.1001/archpedi.154.12.1214. PMID 11115305.
      4. Tscheng DZ (November 2002). "Sialorrhea - therapeutic drug options". Ann Pharmacother. 36 (11): 1785–90. doi:10.1345/aph.1C019. PMID 12398577.
      5. Olsen AK, Sjøgren P (October 1999). "Oral glycopyrrolate alleviates drooling in a patient with tongue cancer". J Pain Symptom Manage. 18 (4): 300–2. doi:10.1016/S0885-3924(99)00080-9. PMID 10534970.
      6. Maria, Sammartano Azia; Claudia, Cassandro; Pamela, Giordano; Andrea, Canale; Roberto, Albera (1 December 2012). "Medical therapy in Ménière's disease". Audiological Medicine. 10 (4): 171–177. doi:10.3109/1651386X.2012.718413.
      7. Kim WO, Kil HK, Yoon DM, Cho MJ (August 2003). "Treatment of compensatory gustatory hyperhidrosis with topical glycopyrrolate". Yonsei Med. J. 44 (4): 579–82. doi:10.3349/ymj.2003.44.4.579. PMID 12950111.
      8. Kim WO, Kil HK, Yoon KB, Yoon DM (May 2008). "Topical glycopyrrolate for patients with facial hyperhidrosis". Br. J. Dermatol. 158 (5): 1094–7. doi:10.1111/j.1365-2133.2008.08476.x. PMID 18294315.
      9. "EPAR – Product information for Seebri Breezhaler" (PDF). European Medicines Agency. 28 September 2012.
      10. Tzelepis G, Komanapolli S, Tyler D, Vega D, Fulambarker A (January 1996). "Comparison of nebulized glycopyrrolate and metaproterenol in chronic obstructive pulmonary disease". Eur. Respir. J. 9 (1): 100–3. doi:10.1183/09031936.96.09010100. PMID 8834341.
      11. Haddad EB, Patel H, Keeling JE, Yacoub MH, Barnes PJ, Belvisi MG (May 1999). "Pharmacological characterization of the muscarinic receptor antagonist, glycopyrrolate, in human and guinea-pig airways". Br. J. Pharmacol. 127 (2): 413–20. doi:10.1038/sj.bjp.0702573. PMC 1566042. PMID 10385241.
      12. Rumpler, M.J.; Colahan, P.; Sams, R.A. (2014). "The pharmacokinetics of glycopyrrolate in Standardbred horses". J. Vet Pharmacol Ther. 37 (3): 260–8. doi:10.1111/jvp.12085. PMID 24325462.
      13. Hansel TT, Neighbour H, Erin EM, et al. (October 2005). "Glycopyrrolate causes prolonged bronchoprotection and bronchodilatation in patients with asthma". Chest. 128 (4): 1974–9. doi:10.1378/chest.128.4.1974. PMID 16236844. Archived from the original on 2013-04-14.
      14. Gilman MJ, Meyer L, Carter J, Slovis C (November 1990). "Comparison of aerosolized glycopyrrolate and metaproterenol in acute asthma". Chest. 98 (5): 1095–8. doi:10.1378/chest.98.5.1095. PMID 2225951. Archived from the original on 2013-04-14.
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