pain relief lotion
new roll-on applicator bottle

The REZIL Team

William Hoffman, BS, MS, FAIC

Bill is a synthetic polymer chemist known for developing many novel contact lens materials and care solutions.  Bill formed several successful companies well known in the medical device industry.  Toqara is a new company Bill created to develop and market new consumer products from his latest laboratory investigations..  REZIL is the first of Toqara's products based upon isoparaffins, which have unique properties ideal for medical and cosmetic applications. 


Renata Hoffman, BA, MA

Renata started her career as a translator of several languages at the United Nations. After receiving a degree in Marketing from UCLA, she soon became an expert in International Marketing.  Working with Bill, Renata successfully developed sales of many contact lens materials and care solutions.  As CEO for Toqara, Renata will promote sales of REZIL in Europe and the United States.


Nyang Koon Seng, BA, MA

Mr. Nyang has had great success as Managing Director of several diverse corporations in Asia.  His expertise ranges from medical devices, to high-rise building construction, to creating and managing consumer loyalty programs.  As Director of International Marketing, Mr. Nyang will develop and manage Toqara operations and REZIL sales in Asia.  


Daniel Drennan, MD

Dr. Dan is a world-renown expert in pain management, known for his development of many novel surgical techniques.  He will act as medical and technical advisor for Toqara's development of REZIL and similar products.

Dr. Drennan is a board-certified anesthesiologist with fellowship training and board certification in chronic pain management.  Since completing his fellowship, Dr. Drennan had been fortunate enough to establish a strong and growing chronic pain practice at the University of Utah. As a result, he watched the current clinic expand to near capacity, and dramatically decreased the clinic waiting times for evaluation. Concurrently, he assisted in successfully integrating interventional pain management with the cancer pain and palliative care service at Huntsman Cancer Institute at the University of Utah.  Now, cancer patients can gain access to both services, resulting in improved patient care.  Utah’s reputation as a solid comprehensive chronic pain management clinic continues to grow, and they now see patient referrals from institutions such as UC Davis, Oregon Health Sciences University, and the Mayo Clinics in Rochester.  As a result, the University of Utah Health Care System achieved the #1 ranking in the University Healthsystem Consortium’s Quality and Accountability study for performance during 2010.

In addition to teaching residents and fellows at the University of Utah, Dr. Drennan also provided lectures to outside interest groups such as the Cancer Wellness House associated with Salt Lake Regional hospital, and the physical therapy school at the University of Utah.  Additionally, he served as an editor for a pain management education course, a consultant for Oxford University Press, and an advisor for the Controlled Substances Task Force of the Utah Medical Association.

As for research, Dr. Drennan participated in a multi-center spinal cord stimulator trial for St. Jude Medical.  He published a few short review papers for the Journal of Pain and Palliative Care Pharmacotherapy, and a systematic review of literature pertaining to topical NSAID therapy. Additionally, he was the primary investigator for a placebo-controlled randomized trial of vitamin D3 replacement in patients with chronic musculoskeletal pain. 

After nearly three years at the University of Utah, Dr. Drennan reached his maximum capacity to see patients at that clinic, and he felt that starting Comprehensive Pain Specialists would allow him to deliver high quality pain management to more patients.  He now resides and practices medicine in the Boulder and Denver metro areas.