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CORRESPONDENCE
Year : 2008  |  Volume : 40  |  Issue : 6  |  Page : 281
 

The concept of personal drugs in the undergraduate pharmacology practical curriculum


Department of Pharmacology, M.P. Shah Medical College, Jamnagar-361 008, Gujarat, India

Correspondence Address:
D M Parmar
Department of Pharmacology, M.P. Shah Medical College, Jamnagar-361 008, Gujarat
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0253-7613.45157

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How to cite this article:
Parmar D M, Jadav S P. The concept of personal drugs in the undergraduate pharmacology practical curriculum. Indian J Pharmacol 2008;40:281

How to cite this URL:
Parmar D M, Jadav S P. The concept of personal drugs in the undergraduate pharmacology practical curriculum. Indian J Pharmacol [serial online] 2008 [cited 2020 Mar 28];40:281. Available from: http://www.ijp-online.com/text.asp?2008/40/6/281/45157


This is with reference to the correspondence, 'The concept of personal drugs in the undergraduate pharmacology practical curriculum'. [1] We would like to highlight the following facts:

The usual dose recommendation of tinidazole in acute amoebic dysentery is 2 gm/day for 3 days. [2] The author has mentioned it as 1 gm/day for 3 days. It is obvious that the average cost per course with tinidazole (Rs. 21-25) would obviously be doubled in acute amoebic dysentery, i.e. Rs. 42-50, as compared to the average cost per course with metronidazole (Rs. 6.75-27.00).

The author has not searched the prices of the mentioned formulations meticulously. The price of two tablets of 1 gm tinidazole is Rs. 8.74. [3] Therefore, the average cost per course with tinidazole for acute amoebic dysentery would be Rs. 26.22. Similarly, the author has mentioned Rs. 35.00 for 2 gm of secnidazole, while it is available at Rs. 26.40.

Metronidazole is given in doses of 400 to 800 mg, three times daily, orally for five to 10 days, in amoebiasis. An alternative to this regimen is 1.5 to 2.5 gm as single daily dose for two or three days. [4] A dose of 2.4 gm metronidazole in a single daily dose for three days is equally effective to a standard recommendation of 5-7 days' therapy in acute intestinal amoebiasis. [5] This indicates that metronidazole 2.4 gm, once daily for three days, is quite cost effective as compared to tinidazole 2 gm once daily for three days (Rs. 11.20 versus Rs. 26.22). Amoebic liver abscess has been treated successfully by short courses (2.4 gm once daily for two days) of metronidazole or tinidazole. [6]

The standard treatment for invasive amoebiasis is metronidazle, ornidazole or tinidazole, followed by a luminal amoebicide, to eradicate any surviving organisms from the lumen of the large intestine and prevent relapse. [4] Treatment with tissue amoebicide should always be followed by a course of a luminal amoebicide, to eradicate the source of the infection.[7]

To choose a P-drug for a specified condition is one of the steps of the process of rational treatment. In our previous article, we have included the process of choosing a P-drug for acute amoebic dysentery and not a whole process of rational treatment of that condition. Therefore, the author's comment on this part may not be appropriate. Detailed information is found in Chapter 1 (The process of rational treatment) and Chapter 3 (Example of selecting a P-drug for angina pectoris) of 'Guide to good prescribing; A practical manual'. [8]

 
 » References Top

1.Khilnani G. The concept of personal drugs in the undergraduate pharmacology practical curriculum. Indian J Pharmacol 2008;40:131-2.  Back to cited text no. 1    Medknow Journal
2.Rosenthal PJ. Antiprotozoal drugs. In: Katzung BG, editor. Basic and clinical pharmacology. 10th ed. Boston: McGraw-Hill; 2007. p. 845-77.  Back to cited text no. 2    
3.Malik S, editor. Indian Drug Review-triple-i. Bangalore, India: CMPMedica India Pvt. Ltd; 2008. p. 346.  Back to cited text no. 3    
4.Sweetman SC. Martindale: The complete drug reference. 35 th ed. London: Pharmaceutical press; 2007. p. 739, 756.  Back to cited text no. 4    
5.Satoskar RS, Bhandarkar SD, Rege NN. Pharmacology and pharmacotherapeutics. 20th ed. Mumbai, India: Popular Prakashan Pvt. Ltd; 2007. p. 782.  Back to cited text no. 5    
6.Phillips MA, Stanley SL Jr. Chemotherapy of protozoal infections: Amoebiasis, trichomoniasis, trypanosomiasis, leishmaniasis and other protozoal infections. In: Brunton LL, Lazo JS, Parker KL, editors. Goodman and Gilman's The pharmacological basis of therapeutics. 11th ed. New York: McGraw-Hill; 2006. p. 1049-72.  Back to cited text no. 6    
7.Laurence DR, Bennett PN, Brown PJ. Clinical pharmacology. 8th ed. New York: Churchill Livingstone; 1997. p. 245.   Back to cited text no. 7    
8.De Vries TP, Henning RH, Hogerzeil HV, Fresle DA. Guide to good prescribing: A practical manual. Geneva: World Health Organization; 1994 (WHO/DAP/94.11).  Back to cited text no. 8    



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Khilnani, G.
Indian Journal of Pharmacology. 2008; 40(6): 282
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