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Phentermine no prescription tx

In a pre-NDA meeting (6/15/2001) for Xanax XR under IND#23,179, the sponsor was requested to submit one positive efficacy clinical trial hydrocodone separation acetaminophen along with PK characterization of Xanax XR, and its safety data, as a basis for approval.

Gerald Fetterly regarding following issues, were conveyed to the sponsor: full data analysis of PK/PD studies; relative alprazolam concentrations from bid of XR relative to those from qd of XR and qid of IR products; update labeling from literature regarding phentermine no prescription tx ADME, DDIs, in-vitro metabolism, electronic submission, development of IVIVC. The sponsor is resubmitting Xanax XR under current NDA with one pivotal clinical trial based on the effectiveness guidance of 1998.

Hossain ' Sponsor: The sponsor requested a teleconference (dated 05/10/2002) to seek FDA agreement on the amount and type of stability data that is proposed for this pending NDA in order to obtain a expiration date for this product. In addition, they were seeking FDA agreement on the acceptability of adding a debossed marking on the tablet. A meeting package was submitted on April 26, 2002, with details about their proposals and the teleconference focused on the questions posed in this briefing package.

>Following phentermine no prescription tx comment was conveyed to the sponsor during teleconference: The sponsor is requested to submit dissolution profile comparisons between debossed and nondebossed tablets using/the selecteddissolution method for all strengths (0.5, 1, 2, and 3 mg) of Xanax XR. The: sponsor was informed that while dissolution was comparable for tablets with different shapes, the experiments conducted do not evaluate the effect of changes in compression force. Since the Belgian tablets are not debossed in the same manner as the proposed U.S. tablets and since we have no information on the effect of different compression forces on release rate, it is prudent to compare dissolution profiles of debossed and non-debossed tablets. >Note: The sponsor indicated in the teleconference that they anticipate the debossed tablets will be manufactured . and they agreed to phentermine no prescription tx submit the requested information as soon as they become available. The requested data were submitted on September .13, 2002. Current review will only focus on the following new information submitted and CPB issues after Agency's last review in 1995: (a)New information submitted since last agency's review of Xanax XR.

This includes study (protocol P/2002/0017: PK and PD of alprazolam relative to meal timing); dissolution profiles from the newly proposed debossed tablet for all strengths; literature-based metabolism and drug-drug interaction to support the labeling language, and PK data to support the proposed once daily or \ - dosage. (b)Are the sponsor proposed dissolution method and specification adequate? (c)How does the sponsor respond to the dissolution specification comments from the agency prior to the (d)Has the sponsor submitted sufficient information to support the level 3 manufacturing site change? Only these new information will be thoroughly reviewed by this reviewer.

The source of the review will be clearly indicated throughout this review. 4.1.4 Are the to-be-marketed XR formulations identical to the formulations submitted under is in the drug tramadol Formulations are unchanged from those submitted1 . in the original -- 4.2 General Attributes 4.2.1 What are the molecular formula and chemical properties of alprazolam? Alprazolam (8-chloro-l-methyl-6-phenyl-4H-s-triazolo[4,3-a][l,4] benzodiazepine) is a triazolobenzodiazepine related to the benzodiazepine class of drugs. It is distinct from the other drugs in this class because of a triazole ring fused to the diazepine ring of the benzodiazepine ring system. Alprazolam (molecular formula C17H13CIN4, phentermine no prescription tx molecular weight 308.77) occurs as a white to off-white crystalline powder.



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