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Question

Posted on: November 8 2017

Since 1 Nov, Nizoral creme is not refundable. A magijet alternative?

Nizoral Cream contains ketoconazole

Answer

span style = "COLOR: rgb (0, 0, 0); font-family: Arial, Helvetica, sans-serif;" > Nizoral Creme contains ketoconazole 2% w/w  

P style = "margin: 0px; font-family: Arial, Helvetica, sans-serif; padding: 4px 0px; color: rgb (0, 0, 0); text-size-adjust: auto;" >   P style = "margin: 0px; font-family: Arial, Helvetica, sans-serif; padding: 4px 0px; color: rgb (0, 0, 0); text-size-adjust: auto;" > img alt = "Ketoconazole Structure" class = "structImage" src = "http://www.chemicalbook.com/CAS/GIF/65277-42-1.gif"/> P style = "margin: 0px; font-family: Arial, Helvetica, sans-serif; padding: 4px 0px; color: rgb (0, 0, 0); text-size-adjust: auto;" > Excipients; P style = "margin: 0px; font-family: Arial, Helvetica, sans-serif; padding: 4px 0px; color: rgb (0, 0, 0); text-size-adjust: auto;" > propylene glycol, 20% w/w; ethoxylated alcohol, 7.5% w/w; cetyl alcohol, 2.0% w/w   P style = "margin: 0px; font-family: Arial, Helvetica, sans-serif; padding: 4px 0px; color: rgb (0, 0, 0); text-size-adjust: auto;" > Following excipients are still used: Sorbitan Stearate; Polysorbate 60; Isopropyl Myristate; Sodium Sulphite Anhydrous; Polysorbate 80; Water purified (Ph. Eur) P style = "margin: 0px; font-family: Arial, Helvetica, sans-serif; padding: 4px 0px; color: rgb (0, 0, 0); text-size-adjust: auto;" > Ketoconazole has two pKa values: 2.9 and 6.5   P style = "margin: 0px; font-family: Arial, Helvetica, sans-serif; padding: 4px 0px; color: rgb (0, 0, 0); text-size-adjust: auto;" > Based on this   we can assume that a portion of ketoconazole is in solution at pH = 5 (pH Buffered Cetomacrogol cream) and can be subjected to degradation. So the buffered Cetomacrogolcreme TMF is not a good excipient for this creme. It is also noted the addition on   of Nasulfite by the firm.   P style = "margin: 0px; font-family: Arial, Helvetica, sans-serif; padding: 4px 0px; color: rgb (0, 0, 0); text-size-adjust: auto;" > so we can use the cream with the following composition per 100 g as excipins: P style = "margin: 0px; font-family: Arial, Helvetica, sans-serif; padding: 4px 0px; color: rgb (0, 0, 0); text-size-adjust: auto;" > propylene glycol 20 g; Cetostearyl alcohol 10 g; sorbitansesquioleate 3 G; Polysorbate 80 7 g; Isopropyl 5 g, Nametabisulfite 100 mg and water up to 100 g   P style = "margin: 0px; font-family: Arial, Helvetica, sans-serif; padding: 4px 0px; color: rgb (0, 0, 0); text-size-adjust: auto;" >