By Anonymous on Thursday, May 13, 2004 - 11:16 am:

Does anyone have any information concerning the relative retention times of the 8 impurities listed in the revised Related Substances HPLC method in the EP (Supplement 4.6)? [Let Loperamide HCl have RRT = 1.0]

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By maris on Thursday, May 13, 2004 - 09:51 pm:

I strongly recommend to ask the EP for details. From my experience they are very colaborative.

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By Inventis on Thursday, June 3, 2004 - 04:13 am:

I would like to have this information too.
If you manage to find it please let me in on it.

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