updated 5/11/2011 7:45:27 AM ET 2011-05-11T11:45:27

SAN DIEGO, Calif., May 11, 2011 (GLOBE NEWSWIRE) -- Zogenix, Inc. (Nasdaq:ZGNX) today announced that it will present three posters highlighting its proprietary DosePro® Needle-free Delivery System at the 2011 American Association of Pharmaceutical Scientists (AAPS) National Biotechnology Conference, to be held May 16 – 18, 2011 at the Hilton San Francisco Union Square, San Francisco, CA.

Zogenix's DosePro Needle-free Delivery System is designed to deliver therapeutic compounds subcutaneously, and it is validated by the Company's first commercial product, SUMAVEL® DosePro® (sumatriptan injection), which is approved in the United States and certain territories in Europe for the acute treatment of migraine and cluster headache.

The posters provide quantitative results from studies that demonstrate various attributes of the DosePro Needle-free Delivery System, including safety, tolerability and patient preference for needle-free delivery, as well as the ability of DosePro to deliver viscous liquid formulations. The Company also will present case studies from its internal DosePro performance reliability studies, employing Quality by Design principles.

Title:     Safety and Tolerability of the DosePro Needle-free 
      Drug Delivery System
Authors:      Smith E, Farr SJ, Boyd BM, Linn L
Date & Time:     Monday, May 16, 2011; 11:00AM – 6:30PM
Poster Number:     M1029
       
Title:     DosePro Needle-Free Delivery of Viscous 
      Formulations
Authors:     Boyd BM, Farr SJ, Herst CV
Date & Time:     Monday, May 16, 2011; 11:00AM – 6:30PM
Poster Number:     M1028
       
Title:     Commercialization of a Reliable Needle-Free Drug 
      Delivery System: Quality by Design Case Studies
      from DosePro Development 
Authors:     Scharin E, Boyd BM, Jordan S, Wunderle, J
Date & Time:     Wednesday, May 18, 2011; 8:00AM – 2:00PM
Poster Number:     W3005

About DosePro Needle-Free Delivery System

Zogenix's proprietary DosePro technology is a first-in-class, easy-to-use drug delivery system designed for self-administration of a pre-filled, single dose of liquid drug, subcutaneously, without a needle.  DosePro offers several potential benefits compared to other subcutaneous delivery methods, and has the potential to become a preferred delivery option for patients and physicians for many injected medicines.  DosePro is protected by more than 80 patents, issued and applied for, worldwide.  Zogenix plans to leverage its technology to develop internal product candidates by pairing DosePro with proven drugs to enhance their commercial attractiveness, as well as form strategic partnerships with other pharmaceutical and biotech companies seeking to enhance, differentiate or extend the life-cycle of their own injectable products.

About SUMAVEL DosePro

SUMAVEL DosePro (sumatriptan injection) is indicated for the acute treatment of migraine attacks, with or without aura, and the acute treatment of cluster headache episodes.

SUMAVEL DosePro should only be used where a clear diagnosis of migraine or cluster headache has been established. SUMAVEL DosePro is not intended for the prophylactic therapy of migraine or for use in the management of hemiplegic or basilar migraine and should not be administered intravenously. For a given attack, if a patient does not respond to the first dose of SUMAVEL DosePro, the diagnosis of migraine or cluster headache should be reconsidered before administration of a second dose.

IMPORTANT SAFETY INFORMATION

SUMAVEL DosePro is contraindicated in patients with uncontrolled hypertension, in patients with history, symptoms or signs of ischemic heart disease, coronary artery vasospasm, cerebrovascular or peripheral vascular disease including ischemic bowel disease and in patients with other significant underlying cardiovascular diseases or known hypersensitivity to sumatriptan. SUMAVEL DosePro should not be given to patients in whom unrecognized coronary artery disease is predicted by the presence of risk factors without a prior cardiovascular evaluation.

Serious cardiovascular events, including death, have been reported when taking sumatriptan, including patients with no findings of cardiovascular disease. Considering the extent of use of sumatriptan in patients with migraine, the incidence of these events is extremely low. Cerebrovascular events, some fatal, have been reported in patients treated with sumatriptan. In a number of cases, it appears possible that the cerebrovascular events were primary, sumatriptan having been administered in the incorrect belief the symptoms experienced were a consequence of migraine when they were not. It is important to advise patients not to administer SUMAVEL DosePro if a headache being experienced is atypical.

SUMAVEL DosePro should not be used within 24 hours of other ergotamine-containing or ergot-type medications or other 5-HT1 agonists and is not generally recommended for use with MAO-A inhibitors. The development of a potentially life-threatening serotonin syndrome may occur with triptans, including treatment with SUMAVEL DosePro, particularly during combined use with selective serotonin reuptake inhibitors (SSRIs) and serotonin-norepinephrine reuptake inhibitors (SNRIs). SUMAVEL DosePro should be used during pregnancy only if the potential benefit justifies the potential risk.

In controlled clinical trials with sumatriptan injection, the most common adverse reactions were injection site reactions, tingling, warm/hot sensation, burning sensation, feeling of heaviness, pressure sensation, feeling of tightness, numbness, feeling strange, tight feeling in head, flushing, tightness in chest, discomfort in nasal cavity/sinuses, jaw discomfort, dizziness/vertigo, drowsiness/sedation and headache.

For full prescribing information, go to http://www.zogenix.com/docs/SV0018.0709A_SDP_PI.pdf

For more information about SUMAVEL DosePro, please visit www.SUMAVELDosePro.com.

About Zogenix

Zogenix, Inc. (Nasdaq:ZGNX), with offices in San Diego and Emeryville, California, is a pharmaceutical company commercializing and developing products for the treatment of central nervous system disorders and pain. Zogenix's first commercial product, SUMAVEL DosePro (sumatriptan injection) Needle-free Delivery System, was launched in January 2010 for the acute treatment of migraine and cluster headache. Zogenix's lead investigational product candidate, ZX002, is a novel, oral, single-entity controlled-release formulation of hydrocodone currently in Phase 3 clinical trials for the treatment of moderate to severe chronic pain in patients requiring around-the-clock opioid therapy.

For additional information, please visit www.zogenix.com.

SUMAVEL(R) and DosePro (R) are registered trademarks of Zogenix, Inc.

Forward Looking Statements

Zogenix cautions you that statements included in this press release that are not a description of historical facts are forward-looking statements. Words such as "believes," "anticipates," "plans," "expects," "indicates," "will," "intends," "potential," "suggests," "assuming," "designed" and similar expressions are intended to identify forward-looking statements. These statements are based on the company's current beliefs and expectations. These forward-looking statements include statements regarding the patent protection of DosePro, the potential for DosePro to become a preferred delivery option and the potential for Zogenix to develop additional internal product candidates or establish strategic partnerships. The inclusion of forward-looking statements should not be regarded as a representation by Zogenix that any of its plans will be achieved. Actual results may differ from those set forth in this release due to the risk and uncertainties inherent in Zogenix's business, including, without limitation: the scope, validity and duration of patent protection and other intellectual property rights for DosePro; difficulties in identifying, negotiating and carrying out strategic transactions relating to DosePro and obtaining regulatory approval for other DosePro products; the market potential for migraine treatments, and Zogenix's ability to compete within that market; inadequate therapeutic efficacy or unexpected adverse side effects relating to SUMAVEL DosePro that could delay or prevent commercialization, or that could result in recalls or product liability claims; Zogenix's dependence on its collaboration with Astellas Pharma US, Inc. to promote SUMAVEL DosePro; and other risks described in the company's prior press releases and filings with the Securities and Exchange Commission.

You are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date hereof, and Zogenix undertakes no obligation to revise or update this news release to reflect events or circumstances after the date hereof. All forward-looking statements are qualified in their entirety by this cautionary statement. This caution is made under the safe harbor provisions of Section 21E of the Private Securities Litigation Reform Act of 1995.

CONTACT: INVESTORS:
         Zack Kubow | The Ruth Group
         646.536.7020 | zkubow@theruthgroup.com
         
         MEDIA:
         Jason Rando | The Ruth Group
         646.536.7025 | jrando@theruthgroup.com

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