Drugbank Logo

Showing drug card for Guaifenesin (DB00874)

Legend: drug field target field enzyme field

Version 2.5
Creation Date 2005-06-13 13:24:05
Update Date 2009-04-16 16:48:07
Primary Accession Number DB00874
Secondary Accession Number
  • APRD01005
Name Guaifenesin
Drug Type
  • Approved
  • Small Molecule
Description An expectorant that also has some muscle relaxing action. It is used in many cough preparations. [PubChem]
Synonyms
  1. Glycerin guaiacolate
  2. Glycerin monoguaiacol ether
  3. Glycero-guaiacol ether
  4. Glycerol guaiacolate
  5. Glyceryl guaiacol
  6. Glyceryl guaiacol ether
  7. Glyceryl guaiacolate
  8. Glyceryl guaiacolate ether
  9. Glyceryl guaiacyl ether
  10. Glyceryl guaicolate
  11. Glyceryl guiacolate
  12. Guiaphenesin
  13. Metfenossidiolo
  14. Methoxypropanediol
  15. Methphenoxydiol
  16. Metossipropandiolo
  17. o-Methoxyphenyl glyceryl ether
Brand Names
  1. Actifed-C
  2. Aeronesin
  3. Amonidren
  4. Amonidrin
  5. Anti-Tuss
  6. Aresol
  7. Balminil Expectorant
  8. Benylin-E
  9. Breonesin
  10. Bronchol
  11. Calmipan
  12. Calmylin Expectorant
  13. Colrex expectorant
  14. Cortussin
  15. Creson
  16. Diabetic Tussin EX
  17. Dilyn
  18. Dorassin
  19. Equicol
  20. Fenesin
  21. Flartussin
  22. Gaiamar
  23. Gee-Gee
  24. Genatuss
  25. Glycodex
  26. Glycotuss
  27. Glytuss
  28. Gnaifenesin
  29. Guaia-rom
  30. Guaiacol glycerin ether
  31. Guaiacol glycerol ether
  32. Guaiacol glyceryl ether
  33. Guaiacolglicerinetere
  34. Guaiacuran
  35. Guaiacurane
  36. Guaiacyl glyceryl ether
  37. Guaiamar
  38. Guaianesin
  39. Guaicol glycerine ether
  40. Guaicol glyceryl ether
  41. Guaiphenesin
  42. Guaiphenesine
  43. Guaiphesin
  44. Guajacol-glycerinaether
  45. Guajacuran
  46. Guajamar
  47. Guanar
  48. Guayanesin
  49. Guiatuss
  50. Gvaja
  51. Halotussin
  52. Humibid L.A
  53. Humibid Sprinkle
  54. Hustodil
  55. Hustosil
  56. Hytuss
  57. Hytuss-2X
  58. Mintosyl
  59. Miocaina
  60. Miocurin
  61. Miorelax
  62. Mucinex
  63. Mucostop
  64. Muskurelax
  65. Myocain
  66. Myocaine
  67. Myorelax
  68. Myoscain
  69. Myoscaine
  70. Naldecon Senior EX
  71. Neuroton
  72. Neurotone
  73. Oresol
  74. Oreson
  75. Organidin NR
  76. Pneumomist
  77. Propanosedyl
  78. Reduton
  79. Relaxil G
  80. Relaxyl-G
  81. Reorganin
  82. Resil
  83. Respenyl
  84. Respil
  85. Resyl
  86. Ritussin
  87. Robitussin
  88. Scot-tussin Expectorant
  89. Sinumist-SR
  90. Sirotol
  91. Tenntus
  92. Tenntuss
  93. Tolseron
  94. Tolyn
  95. Touro EX
  96. Tulyl
  97. Tulyn
  98. Uni-tussin
Brand Mixtures
  1. Babys Own Cough Syr (Ammonium Chloride + Guaifenesin + Pyrilamine Maleate)
  2. Benylin 4 Flu - Syrup (Acetaminophen + Dextromethorphan Hydrobromide + Guaifenesin + Pseudoephedrine Hydrochloride)
  3. Benylin Codeine 3.3mg de Syr (Codeine Phosphate + Guaifenesin + Pseudoephedrine Hydrochloride)
  4. Broncho Tuss Adult (Guaifenesin + L-Ephedrine Hydrochloride + Sodium Camsylate)
  5. Broncho Tuss Infant (Guaifenesin + L-Ephedrine Hydrochloride + Sodium Camsylate)
  6. Bronchodex Pediatrique (Dextromethorphan Hydrobromide + Guaifenesin + Pheniramine Maleate + Pseudoephedrine Hydrochloride)
  7. Calmylin #3 Syr (Dextromethorphan Hydrobromide + Guaifenesin + Pseudoephedrine Hydrochloride)
  8. Calmylin Codeine D-E Syr (Codeine Phosphate + Guaifenesin + Pseudoephedrine Hydrochloride)
  9. Calmylin Cough and Flu Liq (Acetaminophen + Dextromethorphan Hydrobromide + Guaifenesin + Pseudoephedrine Hydrochloride)
  10. Centracol Pediatrique - Syr (Dextromethorphan Hydrobromide + Guaifenesin + Pheniramine Maleate + Pseudoephedrine Hydrochloride)
  11. Cheracol Cough Syrup (Alcohol Anhydrous + Ammonium Chloride + Codeine Phosphate + Guaifenesin)
  12. Cold Aid for Birds (Ammonium Chloride + Glycerine + Guaifenesin + Oil of Anise + Sodium Bicarbonate)
  13. Cold and Respiratory Aid for Hamsters (Ammonium Chloride + Glycerine + Guaifenesin + Oil of Anise + Sodium Bicarbonate)
  14. Cough Syr W.Cod. Pseudoephed.Hcl Guaifenesin (Codeine Phosphate + Guaifenesin + Pseudoephedrine Hydrochloride)
  15. Cough Syrup Dm Decongestant Expectorant (Dextromethorphan Hydrobromide + Guaifenesin + Pseudoephedrine Hydrochloride)
  16. Cough Syrup Dm Expectorant (Dextromethorphan Hydrobromide + Guaifenesin)
  17. Cough Syrup Dm-D-E (Dextromethorphan Hydrobromide + Guaifenesin + Pseudoephedrine Hydrochloride)
  18. Cough Syrup Dm-E (Dextromethorphan Hydrobromide + Guaifenesin)
  19. Cough Syrup Dm-Expectorant (Dextromethorphan Hydrobromide + Guaifenesin)
  20. Cough Syrup W.Guaifenesin W.Dextromethorphan (Dextromethorphan Hydrobromide + Guaifenesin)
  21. Cough and Flu Syrup (Acetaminophen + Dextromethorphan Hydrobromide + Guaifenesin + Pseudoephedrine Hydrochloride)
  22. Creo Grippe Enfants Sup (Camphor + Eucalyptol + Guaifenesin)
  23. Creo Grippe Sup Adultes (Camphor + Eucalyptol + Guaifenesin)
  24. Dayquil Liquicaps (Acetaminophen + Dextromethorphan Hydrobromide + Guaifenesin + Pseudoephedrine Hydrochloride)
  25. Daytime Cold & Flu Liquid Capsules (Acetaminophen + Dextromethorphan Hydrobromide + Guaifenesin + Pseudoephedrine Hydrochloride)
  26. Daytime Liquid - Liq (Acetaminophen + Dextromethorphan Hydrobromide + Guaifenesin + Pseudoephedrine Hydrochloride)
  27. Dimetane Expectorant Liq (Brompheniramine Maleate + Guaifenesin + Phenylephrine Hydrochloride + Phenylpropanolamine Hydrochloride)
  28. Dimetane Expectorant-C Syr (Brompheniramine Maleate + Codeine Phosphate + Guaifenesin + Phenylephrine Hydrochloride + Phenylpropanolamine Hydrochloride)
  29. Dimetane Expectorant-Dc Syr (Brompheniramine Maleate + Guaifenesin + Hydrocodone Bitartrate + Phenylephrine Hydrochloride + Phenylpropanolamine Hydrochloride)
  30. Dm Cough Syrup Expectorant (Dextromethorphan Hydrobromide + Guaifenesin)
  31. Dm Expectorant Cough Syrup (Dextromethorphan Hydrobromide + Guaifenesin)
  32. Dm Plus Decongestant Plus Expector.Ex.St.Syr (Dextromethorphan Hydrobromide + Guaifenesin + Pseudoephedrine Hydrochloride)
  33. Dm Plus Decongestant Plus Expectorant Cough Syrup (Dextromethorphan Hydrobromide + Guaifenesin + Pseudoephedrine Hydrochloride)
  34. Dm Plus Expectorant Syrup (Dextromethorphan Hydrobromide + Guaifenesin)
  35. Dm-D-Expectorant Cough and Cold Syrup (Dextromethorphan Hydrobromide + Guaifenesin + Pseudoephedrine Hydrochloride)
  36. Dymetadrine 25 - Tab (Ephedrine Hydrochloride + Guaifenesin)
  37. Entex La (Guaifenesin + Phenylpropanolamine Hydrochloride)
  38. Entex La Tablets Srt (Guaifenesin + Phenylpropanolamine Hydrochloride)
  39. Ephedrine Ii with Guaifenesin (Ephedrine Racemic (Ephedrine Hydrochloride) + Guaifenesin)
  40. Ephedrine V with Guaifenesin (Ephedrine Hydrochloride + Guaifenesin)
  41. Guaiacol Plus Pwr (Ammonium Chloride + Guaifenesin + Potassium Iodide)
  42. I D M Expectorant Tab (Guaifenesin + Potassium Iodide + Pyrilamine Maleate + Theophylline)
  43. I.D.M. Solution (Guaifenesin + L-Ephedrine Hydrochloride + Potassium Iodide + Pyrilamine Maleate)
  44. Koffex Dm + Decongestant + Expectorant (Dextromethorphan Hydrobromide + Guaifenesin + Pseudoephedrine Hydrochloride)
  45. Koffex Dm + Decongestant + Expectorant Extra Strength (Dextromethorphan Hydrobromide + Guaifenesin + Pseudoephedrine Hydrochloride)
  46. Koffex Dm + Expectorant (Dextromethorphan Hydrobromide + Guaifenesin)
  47. Koffex Dm + Expectorant Extra Strength (Dextromethorphan Hydrobromide + Guaifenesin)
  48. Koffex Dm-D-E - Liq (Dextromethorphan Hydrobromide + Guaifenesin + Pseudoephedrine Hydrochloride)
  49. Mielocol Syrup (Aralia Racemosa + Eucalyptol + Guaifenesin + Honey + Poplar Bud + Sanguinaria Canadensis + White Pine + Wild Cherry)
  50. Nezger Tab (Acetylsalicylic Acid + Diphenylpyraline Hydrochloride + Guaifenesin + Phenylephrine Hydrochloride)
  51. Novahistex Dh Expectorant (Guaifenesin + Hydrocodone Bitartrate + Phenylephrine Hydrochloride)
  52. Novahistex Dm Expectorant with Decongestant (Dextromethorphan Hydrobromide + Guaifenesin + Pseudoephedrine Hydrochloride)
  53. Novahistex Expectorant with Decongestant (Guaifenesin + Pseudoephedrine Hydrochloride)
  54. Novahistine Dm Expectorant with Decongestant (Dextromethorphan Hydrobromide + Guaifenesin + Pseudoephedrine Hydrochloride)
  55. Ornade Expectorant Cough Formula (Chlorpheniramine Maleate + Guaifenesin + Phenylpropanolamine Hydrochloride)
  56. Pharmitussin Dm (Dextromethorphan Hydrobromide + Guaifenesin)
  57. Pulmorex Expectorant Liq (Ammonium Chloride + Diphenhydramine Hydrochloride + Guaifenesin)
  58. Pulmosirum Plus Expectorant (Ammonium Chloride + Beechwood Creosote + Cocillana + Eucalyptus Oil + Guaiacol + Guaifenesin + Ipecac + Lobelia Inflata + Menthol + Myroxylon Balsamum + White Pine)
  59. Quiex-K1 Syr (Aminophylline + Guaifenesin + Potassium Iodide)
  60. Regular Strength Tylenol Cold Chest Congestion (Acetaminophen + Dextromethorphan Hydrobromide + Guaifenesin + Pseudoephedrine Hydrochloride)
  61. Robitussin Syrup with Codeine (Codeine Phosphate + Guaifenesin + Pheniramine Maleate)
  62. Sudafed Cold and Flu Gel Caps (Acetaminophen + Dextromethorphan Hydrobromide + Guaifenesin + Pseudoephedrine Hydrochloride)
  63. Tri-Anamine Expect Antihist Decong Syrup (Guaifenesin + Pheniramine Maleate + Phenylpropanolamine Hydrochloride + Pyrilamine Maleate)
  64. Triaminic Decongest+Expect Liqui-Gels Cap (Guaifenesin + Pseudoephedrine Hydrochloride)
  65. Triaminic Dm Daytime Syr (Dextromethorphan Hydrobromide + Guaifenesin + Phenylpropanolamine Hydrochloride)
  66. Triaminic Dm Expectorant Syr (Chlorpheniramine Maleate + Dextromethorphan Hydrobromide + Guaifenesin + Pseudoephedrine Hydrochloride)
  67. Triaminic Expectorant Dh Syrup (Guaifenesin + Hydrocodone Bitartrate + Pheniramine Maleate + Phenylpropanolamine Hydrochloride + Pyrilamine Maleate)
  68. Triaminic Expectorant Syr (Chlorpheniramine Maleate + Guaifenesin + Pseudoephedrine Hydrochloride)
  69. Tussin Cough Medicine Dm Antitussive Expectorant Decongestant (Dextromethorphan Hydrobromide + Guaifenesin + Pseudoephedrine Hydrochloride)
  70. Vicks Cough Syrup New Improved (Carbetapentane Citrate + Ephedrine + Guaifenesin)
Chemical IUPAC Name 3-(2-methoxyphenoxy)propane-1,2-diol
Chemical Formula C10H14O4
Chemical Structure Structure
CAS Registry Number 93-14-1
InChI Identifier InChI=1/C10H14O4/c1-13-9-4-2-3-5-10(9)14-7-8(12)6-11/h2-5,8,11-12H,6-7H2,1H3
InChI Key HSRJKNPTNIJEKV-UHFFFAOYAG
KEGG Drug D00337 Link Image
KEGG Compound Not Available
PubChem Compound 3516 Link Image
PubChem Substance 7847403 Link Image
ChEBI ID Not Available
PharmGKB ID PA449818 Link Image
HET ID Not Available
GenBank ID Not Available
Drug ID Number [DIN] 02242892 Link Image
RxList Link http://www.rxlist.com/cgi/generic2/guaifen.htm Link Image
PDRhealth Link http://www.pdrhealth.com/drug_info/rxdrugprofiles/drugs/tus1463.shtml Link Image
Wikipedia Link http://en.wikipedia.org/wiki/Guaifenesin Link Image
FDA Label
Material Safety Data Sheet (MSDS)
Synthesis Reference Not Available
Average Molecular Weight 198.2158
Monoisotopic Molecular Weight 198.0892
State Solid
Melting Point 78.5 oC
Experimental Water Solubility 50 mg/mL Source: PhysProp
Predicted Water Solubility 1.49e+01 mg/mL Calculated using ALOGPS
Experimental LogP/Hydrophobicity 0.2 Source: PhysProp
Predicted LogP 0.76 Calculated using ALOGPS
Experimental LogS Not Available
Predicted LogS -1.12 Calculated using ALOGPS
Experimental Caco2 Permeability Not Available
pKa/Isoelectric Point Not Available
Mass Spectrum Not Available
MOL File Show Link Image | Download Link Image
SDF File Show Link Image | Download Link Image
PDB File Show Link Image | Download Link Image
2D Structure
3D Structure
Experimental PDB ID Not Available
Isomeric SMILES COC1=CC=CC=C1OC[C@H](O)CO
Canonical SMILES COC1=CC=CC=C1OCC(O)CO
Drug Category
  • Expectorants
ATC Codes
AHFS Codes
  • 48:16.00
Indication Used to assist the expectoration of phlegm from the airways in acute respiratory tract infections.
Pharmacology Guaifenesin is an expectorant which increases the output of phlegm (sputum) and bronchial secretions by reducing adhesiveness and surface tension. The increased flow of less viscous secretions promotes ciliary action and changes a dry, unproductive cough to one that is more productive and less frequent. By reducing the viscosity and adhesiveness of secretions, guaifenesin increases the efficacy of the mucociliary mechanism in removing accumulated secretions from the upper and lower airway.
Mechanism of Action Guaifenesin may act as an irritant to gastric vagal receptors, and recruit efferent parasympathetic reflexes that cause glandular exocytosis of a less viscous mucus mixture. Cough may be provoked. This combination may flush tenacious, congealed mucopurulent material from obstructed small airways and lead to a temporary improvement in dyspnea or the work of breathing.
Absorption Rapidly absorbed from the GI tract
Toxicity LD50 1510 mg/kg (rat, oral)
Protein Binding Not Available
Biotransformation Rapidly hydrolyzed (60% within seven hours) and then excreted in the urine, with beta-(2-methoxyphenoxy)-lactic acid as its major urinary metabolite.
Half Life 1 hour
Dosage Forms
Form Route
Liquid Oral
Syrup Oral
Patient Information Show Link Image
Contraindications Show Link Image
Interactions Show Link Image
Drug Interactions Not Available
Food Interactions
  • Take with a full glass of water.
  • Take without regard to meals.
Pathways Not Available
General References
  1. Wikipedia Link Image
  2. RxList Link Image
  3. PDRhealth Link Image
Organisms Affected
  • Humans and other mammals

This project is supported by Genome Alberta & Genome Canada, a not-for-profit organization that is leading Canada's national genomics strategy with $600 million in funding from the federal government. This project is also supported in part by GenomeQuest, Inc., an enterprise genomic information company serving the life science community.