title: Evaluation of antitussive activity of formulations with herbal extracts in sulphur dioxide (SO2) induced cough model in mice.
abstract: Cough is the most common symptom of respiratory diseases. When cough becomes serious, opioids are effective, but they have side effects like sedation, constipation, some addiction liability and also compromise the respiratory function. Therefore, there is need to have effective anti-tussive agent which do not have respiratory suppressant activity. The present study was carried out to evaluate anti-tussive activity of combination of herbal drugs as formulations in sulphur dioxide (SO2)-induced cough model in mice. Albino mice of either sex, weighing 25-30 g were divided into eight groups, (n = 6). Group 1 served as normal control, group 2 mice were given distilled water, group 3 was positive control and received codeine sulphate (10 mg/kg, p.o.) and group 4, 5, 6, 7 received coded 1 formulations 1, 2, 3 and 4 respectively at a dose of 0.3 ml/mice, orally, while group VIII was the vehicle control. Thirty minutes later, the mice were exposed to sulphur dioxide again for 45 sec. The mice were then placed in an observation chamber for counting of cough bouts, by two independent observers, for five minutes. All the formulations used showed significant antitussive activity in sulphur dioxide induced cough model. Thus, these formulations can prove to be useful for alleviating cough.
authors.affiliation: Neuropharmacology Laboratory, Department of Pharmacology, All India Institute of Medical Sciences, New Delhi 110 029. yk.ykgupta@gmail.com
authors.forename: Y K
authors.initials: YK
authors.lastname: Gupta
authors.forename: Jatinder
authors.initials: J
authors.lastname: Katyal
authors.forename: Gajendra
authors.initials: G
authors.lastname: Kumar
authors.forename: Jogender
authors.initials: J
authors.lastname: Mehla
authors.forename: C K
authors.initials: CK
authors.lastname: Katiyar
authors.forename: Naveen
authors.initials: N
authors.lastname: Sharma
authors.forename: Satpal
authors.initials: S
authors.lastname: Yadav
mesh_terms: D000818:Animals; D000996:Antitussive Agents / Q000627:therapeutic use*; D003061:Codeine / Q000627:therapeutic use; D003371:Cough / Q000139:chemically induced / Q000188:drug therapy*; D004195:Disease Models, Animal; D008297:Male; D051379:Mice; D008815:Mice, Inbred Strains; D008517:Phytotherapy; D010936:Plant Extracts / Q000627:therapeutic use*; D028321:Plant Preparations / Q000627:therapeutic use*; D011897:Random Allocation; D013458:Sulfur Dioxide
chemical_list: D000996:Antitussive Agents; D010936:Plant Extracts; D028321:Plant Preparations; D013458:Sulfur Dioxide; D003061:Codeine