Author Year Country Cough inducing disease Sample size (I /C ) Intervention group Control group Age (years) (I /C ) Cough duration (I /C ) Intervention duration Outcome measurements Dong [12 ] 2014 China Postsurgical cough 52/53 ZSS Gentamicin + α -chymotrypsin 32–65 NR 3 d ① Cai [13 ] 2013 China PIC 36/36 MZSS Ketotifen or ambroxol 6–15/7–19 NR 5 d ① Cai [14 ] 2011 China PIC 30/30 MZSS Meptin + ketotifen + azithromycin 18–60/21–55 21–55 d/22–54 d 7 d ① Cao [15 ] 2011 China PIC 30/27 ZSS Cephalexin + compound guaiacol potassium oral solution 3–8/4–10 15 d–1 y/10 d–10 m 7 d ① Jin [16 ] 2016 China PIC 40/40 MZSS Pentoxyverine + loratadine 10 d ① Ju [17 ] 2010 China PIC 56/56 MZSS Chlorphenamine maleate 15 d ① + ② Kan [18 ] 2010 China PIC 30/30 MZSS Dextromethorphan + chlorphenamine maleate 10 d ① Kan [19 ] 2011 China PIC 33/32 MZSS Roxithromycin id 2–10/2–10 4 wk–3 m/4 wk–3 m 14 d ① Li [20 ] 2013 China PIC 30/30 MZSS Asmeton d7 d ① + ③ Liang [21 ] 2014 China PIC 84/84 MZSS Pentoxyverine NR ① + ③ Liu and Qiu [22 ] 2012 China PIC 38/40 MZSS Pentoxyverine + chlorphenamine maleate 19–53/18–55 3–8 wk NR ① + ③ Liu [23 ] 2014 China PIC 68/64 MZSS Ketotifen + carbetapentane citrate 10 d ① Lu [24 ] 2012 China PIC 43/43 MZSS Ketotifen + meptin + azithromycin 7 d ① Qiu [25 ] 2012 China PIC 28/28 MZSS Chlorphenamine maleate + cartussin 22–55/20–60 19–49 d/23–46 d 15 d ① Qiu [26 ] 2011 China PIC 82/78 MZSS Dextromethorphan + loratadine 7 d ① + ③ Qiu [27 ] 2012 China PIC 35/30 MZSS Compound pholcodine syrup + asmeton + azithromycin 14–65/15–65 NR 3 d ① Sun [28 ] 2011 China PIC 58/52 MZSS Chlorpheniramine maleate + methyl bromide 19–57/20–58 14–40 d/16–41 d 7 d ① Tao [29 ] 2011 China PIC 30/30 MZSS Pseudoephedrine hydrochloride sustained release capsules 7 d ① + ② Zhu [30 ] 2010 China PIC 62/30 MZSS Azithromycin 2 m–13/5 m–13 2–4 d/1–5 d 3 wk ① Chen [31 ] 2004 China Laryngeal cough 39/39 MZSS Roxithromycin id + Zhikelu 5–87/7–82 5 d–2 y/3 d–1.5 y 5 d ① Fang [32 ] 2014 China Laryngeal cough 43/43 MZSS Setastine + carbetapentane citrate + new bromide 40/41 3–12 wk/3–12 wk 14 d ① Hu [33 ] 2013 China Laryngeal cough 59/54 MZSS Budesonide 34–63/32–64 3–8 wk/3–7.3 wk 7 d ① + ⑤ Huang [34 ] 2013 China Laryngeal cough 60/60 MZSS Cefuroxime axetil + phenergan syrup 16–64/17–65 7 d–3 m/7 d–3 m 10 d ① + ③ + ⑤ Liu [35 ] 2004 China Laryngeal cough 72/38 MZSS Amoxicillin or cefradine + phenergan cough syrup 4 d ① Gong [36 ] 2007 China CVA 40/40 MZSS Ketotifen + doxofylline + salbutamol aerosol 2–36 m/2–30 m 28 d ① + ④ Lu [37 ] 2007 China CVA 35/34 MZSS Terbutaline + cetirizine 9.6/9.2 1.3 m/1.4 m 14 d ① Liu [35 ] 2012 China CVA 28/25 MZSS Shah Mette Lo fluticasone propionate 14 d ① + ② Qu [38 ] 2006 China CVA 30/30 MZSS Terbutaline 30 d ① + ④ Tao [39 ] 2014 China CVA 55/55 MZSS Montelukast sodium + budesonide aerosol 2–11/2.5–12 3–33 m/4–36 m 4 wk ① Wang [40 ] 2011 China CVA 60/60 MZSS Conventional treatment for cough 2–9/2.5–10 NR 10 d ① Yu et al. [41 ] 2016 China CVA 52/52 MZSS Shah Mette Lo fluticasone powder 30 d ① + ② + ④ Zhang [42 ] 2009 China CVA 30/30 MZSS Ceftazidime + dexamethasone 2–66 NR 14 d ① + ② Shao [43 ] 2004 China Cough 60/48 MZSS Cefradine 14–66/12–62 NR 14 d ① Cai [44 ] 2011 China Chronic cough 24/24 MZSS Conventional treatment for cough 26–70/20–65 8–36 wk/10–42 wk 14 d ① Dai et al. [45 ] 2015 China Chronic cough 26/26 MZSS Desloratadine + ambroxol 14 d ① Huang [46 ] 2014 China Chronic cough 45/45 MZSS Chlorphenamine + aminophylline + ambroxol 24–75 8 wk–2 y 14 d ① + ③ Qiao [47 ] 2016 China Chronic cough 40/40 MZSS Cefuroxime axetil + ambroxol + dextromethorphan y1 m ① + ③ Tao [48 ] 2013 China Chronic cough 40/40 MZSS Azithromycin + ambroxol 20–76 NR 7 d ① Wang and Guo [49 ] 2016 China Chronic cough 50/50 MZSS Chlorpheniramine maleate + salbutamol + methyl bromide NR 7 d ① Yang [50 ] 2015 China Chronic cough 47/47 MZSS Asmeton 7 d ① + ③ Ye [51 ] 2009 China Chronic cough 30/30 MZSS Asmeton 19–46 NR 7 d ① Zhang [52 ] 2016 China Chronic cough 44/44 MZSS Ambroxol NR 14 d ① + ⑤ Dang and Yang [53 ] 2008 China Allergic cough 38/38 MZSS Ketotifen + aminophylline 2–12/2–12 1–6.6 m/1–5.9 m 7 d ① Zhang [54 ] 2014 China Allergic cough 25/25 MZSS Terbutaline 4 wk ① + ③ Hu [55 ] 2015 China Acute cough 60/60 ZSS Asmeton 14 d ① Huang [56 ] 2011 China Acute cough 80/40 MZSS Amoxicillin 19–35/20–34 0.5–7 d/0.5–6.5 d 3 d ①