Narcotics control division, Ministry of public health, Thailand. Information and misuses of tramadol [online]. 2013 [cited 2016 Sept 16]. Available from: http://narcotic.fda.moph.go.th/welcome/?p=4326[in Thai]
Adams EH, Breiner S, Cicero TJ, Geller A, Inciardi JA, Schnoll SH, et al. A comparison of the abuse liability of tramadol, NSAIDs, and hydrocodone in patients with chronic pain. J Pain Symptom Manage. 2006; 31:465–76.
Bureau of Information, Office of the Permanent Secretary, Ministry of Public Health, Thailand. Physicians warn the youth that abusing drug can lead to drug addiction and destroy their life [online]. 2016 [cited 2017 May 22]. Available from: https://pr.moph.go.th/?url=pr/detail/all/02/90409 [in Thai]
Post Today. Caution!! “Taking Pro” lead to hallucination-death [online]. 2015 [cited 2017 May 22]. Available from: http:// www.posttoday.com/analysis/report/374392 [in Thai]
Abood EA, Wazaify M. Abuse and misuse of prescription and nonprescription drugs from community pharmacies in Aden City–Yemen. Subst Use Misuse. 2016; 51:942–7.
Ministry of Public Health. Official Document Number 1009.2/12612, signed by secretary general of the Thai Food and Drug Administration, subject: Measures to control the sale of tramadol. 2013 Sept 6. [in Thai]
Bureau of Drug Control. Statistics of license related to business of drug trading in Thailand, year 2014 [online]. 2014 [cited 2018 Feb 1]. Available from: http://www.fda.moph.go.th/sites/drug/download/สถิติ.pdf [in Thai]
Department of City Planning, Bangkok Metropolitan Administrator. A land use plan classified to land use category BE 2556, Principle City Planning BE 2556 [online]. 2015 [cited 2018 Feb 1]. Available from: http://cpd.bangkok.go.th:90/web2/NEWCPD2556/02_cpd56.pdf [in Thai]
Pergolizzi JV Jr, van de Laar M, Langford R, Mellinghoff HU, Merchante IM, Nalamachu S, et al. Tramadol/paracetamol fixed-dose combination in the treatment of moderate to severe pain. J Pain Res. 2012; 5:327–46.
Rawal N, Macquaire V, Catalá E, Berti M, Costa R, Wietlisbach M. Tramadol/paracetamol combination tablet for postoperative pain following ambulatory hand surgery: a double-blind, double-dummy, randomized, parallel-group trial. J Pain Res. 2011; 4:103–10.
Zabihi E, Hoseinzaadeh A, Emami M, Mardani M, Mahmoud B, Ali Akbar M. Potential for tramadol abuse by patients visiting pharmacies in northern Iran. Subst Abuse. 2011; 5:11–5.
Bashirian S, Barati M, Fathi Y. Prevalence and factors associated with tramadol abuse among college students in west of Iran: an application of the theory of planned behavior. Avicenna J Neuro Psych Physio. 2014; 1:e20314. doi: 10.17795/ajnpp-20314
Santisetthsin P, Thananithisak C. Public and community pharmacist opinions toward the control measure of tramadol drug dispensing. Srinag Med J. 2014; 29:559–66. [in Thai, English abstract]
Spiller HA, Scaglione JM, Aleguas A, Foster H, Durback-Morris L, Scharman EJ, Baker SD. Effect of scheduling tramadol as a controlled substance on poison center exposures to tramadol. Ann Pharmacother. 2010; 44:1016–21.