The Dangers of Pentosan (Elmiron) Eye Disease

October 7, 2019 / 1:27 pm

If you or someone you love has been taking Pentosan Polysulfate Sodium, commonly referred to by the brand name Elmiron, then you could be at serious risk of eye disease. The nationally-recognized firm Colson Hicks Eidson is now taking clients affected by Elmiron across the country. We have vast experience handling cases against major corporations and are ready to stand up for your rights. Our goal is to fully investigate your case and move to secure the compensation you deserve.

What is Elmiron used for?

Elmiron is the brand name for Pentosan, which is sodium pentosan polysulfate (PPS). This prescription medication is used to treat pain caused by interstitial cystitis, commonly known as “painful bladder syndrome.” This medication has also been prescribed for osteoarthritis in humans, as well as in elderly dogs and horses.

Elmiron was approved by the US Food and Drug Administration (FDA) to treat this disease in 1995 and has sales of more than $150 million a year.

What are the dangers of using Elmiron?

Recently, Elmiron has been linked to a retinal injury called maculopathy. In 2018, Dr. Nieraj Jain, a researcher at the Emory Eye Center at the Emory School of Medicine in Atlanta, GA, alerted the public that taking Elmiron is linked to this eye disease.

Maculopathy a term used to describe conditions that affect the macula, an area of the retina associated with “highly sensitive, accurate vision.” The form of macular degeneration attributed to taking Elmiron is called “pigmentary maculopathy of unknown etiology.”

While symptoms between patients vary, symptoms can include any or all of the following:

  • Parafoveal pigmented deposits: this occurs when the capillaries and small blood vessels around the macula become abnormal and can cause vision loss.
  • Vitelliform deposits: this occurs when round, yellowish lesions form underneath the macula. This is also known as adult pattern macular dystrophy.
  • Retinal pigment epithelium atrophy: this is a common symptom of age-related macular degeneration.

Are there other symptoms related to taking Elmiron?

Elmiron has also been linked to the following symptoms in patients:

  • Bruising
  • Diarrhea
  • Headaches
  • Alopecia (hair loss)
  • Gastroesophageal reflux
  • Skin rash
  • Sleep disorders
  • Rectal bleeding

How can Elmiron be linked to this disease and not other medications?

Elmiron is linked to maculopathy because it is the only FDA-approved medication used to treat interstitial cystitis. Research has shown that retinal cells are accumulating a toxic substance from Pentosan over time.

How long do you have to take Elmiron before problems develop?

There is no direct link to the symptoms in patients taking Elmiron to the length of time they have been taking the medication. The study done by Dr. Jain at the Emory School of Medicine says that all patients in his study showed signs of retinal disease. The youngest person in the study was diagnosed with interstitial cystitis (painful bladder syndrome) at the age of 23. Dr. Jain said that the patient began showing symptoms of vision problems by the age of 30.

What are the most common symptoms linked to Elmiron eye disease?

Emory researchers submitted a study to the American Urology Association Annual Meeting in May of 2019. They said that the most common symptoms they found in patients taking Elmiron included:

  • Difficulty reading
  • Difficulty adapting to dim lighting
  • Vision disturbances or distorted vision
  • Blindness
  • Trouble seeing things up close
  • Eye pain

Is the damage caused by Elmiron reversible?

It is recommended that anyone taking the prescription drug Elmiron undergo a full eye exam regardless of whether they have developed adverse symptoms or not. Remember, there are other symptoms listed above to be aware of that may mask themselves as unrelated to taking Elmiron.

Researchers suggest that the vision-threatening pigmentary maculopathy in these cases is likely irreversible, and vision loss not recoverable. They suggest that the other symptoms of taking Elmiron (hair loss, rectal bleeding) are reversible.

Why is an attorney needed for Elmiron eye disease cases?

If you have used Elmiron and have experienced the symptoms discussed here today, contact the team at Colson Hicks Eidson today. Cases involving prescription drugs can become incredibly complex. The other side is not going to readily accept that their product causes harm, even if they know that is the case.

Prescription drug companies should always be held accountable if they fail to warn patients about potential negative side effects of medication.

Janssen Pharmaceuticals, Inc. is the maker of Elmiron. How long have they known that their prescription drug can lead to severe eye disease? Have they disclosed this information to healthcare professionals so they can make an informed decision with their patients?

At Colson Hicks Eidson, our Elmiron attorneys will get to work investigating your case. We will ensure you are evaluated by a trusted healthcare professional. We will have your medical records examined by an expert medical witness who can properly assess whether your eye disease is linked to taking Elmiron.

While most individuals do not have the capability to take on large corporations by themselves, we have the experience and resources necessary to take on Janssen Pharmaceuticals, Inc.

We are ready to help

If you or a loved one have been affected by Elmiron or Pentosan, please contact Colson Hicks Eidson today. You are not alone in this fight. We have vast experience handling nationwide product liability cases like this, and we are ready to put that experience to work for you. Our goal is to secure the compensation you need if you’ve been affected by Elmiron. This includes:

  • The cost of your current and future medical bills
  • Recovery of income lost if you are unable to work
  • Pain and suffering damages
  • Mental anguish damages
  • Loss of enjoyment of life damages
  • Punitive damages against a company or manufacturer

You did not deserve this. When you need an Elmiron eye disease attorney, you can contact us by clicking here or by calling us at 305-476-7442. We want to offer a free case evaluation, and we would be honored to speak with you. Our compassionate team is standing by.

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Colson Hicks Eidson is proud to share that ten of its attorneys—more than half of the firm—have been recognized in the 2026 edition of The Best Lawyers in America®. 

Stephanie A. Casey, Dean C. Colson, Lewis S. “Mike” Eidson, Joseph J. Kalbac, Jr., Julie Braman Kane, Roberto Martinez, and Curtis Miner are listed in The Best Lawyers in America®. Eleni I. Constant, Zachary A. Lipshultz, and Sabrina S. Saieh are recognized in Best Lawyers: Ones to Watch.

Best Lawyers’ lists of outstanding lawyers are developed through peer review surveys where tens of thousands of lawyers evaluate their professional peers. Best Lawyers recognized attorneys in all of the firm’s core practice areas. 

Stephanie A. Casey

Commercial Litigation

Mass Tort Litigation / Class Actions – Plaintiffs

Dean C. Colson

Bet-the-Company Litigation

Commercial Litigation

Personal Injury Litigation – Plaintiffs

Product Liability Litigation – Plaintiffs

Professional Malpractice Law – Defendants

Professional Malpractice Law – Plaintiffs

Lewis S. “Mike” Eidson

Mass Tort Litigation / Class Actions – Plaintiffs

Product Liability Litigation – Plaintiffs

Joseph J. Kalbac, Jr. 

Commercial Litigation

Insurance Law

Mass Tort Litigation / Class Actions – Plaintiffs

Personal Injury Litigation – Plaintiffs

Product Liability Litigation – Plaintiffs

Julie Braman Kane – “Lawyer of the Year”

Commercial Litigation

Medical Malpractice Law – Plaintiffs

Personal Injury Litigation – Plaintiffs

Roberto Martinez

Bet-the-Company Litigation

Commercial Litigation

Criminal Defense: White-Collar

Curtis Miner

Commercial Litigation

Criminal Defense: White-Collar

Mass Tort Litigation / Class Actions – Plaintiffs

Personal Injury Litigation –  Plaintiffs

Eleni I. Constant

Personal Injury Litigation – Plaintiffs

Zachary A. Lipshultz

Commercial Litigation

Mass Tort Litigation/ Class Actions – Plaintiffs

Personal Injury Litigation – Plaintiffs

Sabrina S. Saieh

Mass Tort Litigation/ Class Actions – Plaintiffs

Personal Injury – Plaintiffs

Product Liability Litigation – Plaintiffs

About Colson Hicks Eidson

Colson Hicks Eidson is a renowned law firm based in Miami, Florida, that is recognized as one of the top trial firms in the United States. Built on a foundation of over 50 years of dedication forging strong client relationships, Colson Hicks Eidson handles local, national, and international litigation, with cases spanning from Miami, Florida, and throughout the United States, to matters in the Caribbean, Central America, South America, and Europe. Learn more at: www.colson.com.

Colson Hicks Eidson is proud to celebrate two of our attorneys for receiving prestigious awards at the 2025 American Association for Justice Annual Convention in San Francisco.

President and Senior Partner Lewis S. “Mike” Eidson was awarded the Leonard M. Ring Champion of Justice Award, which recognizes outstanding integrity and overall character demonstrating Leonard M. Ring’s devotion to human and civil rights. Mike is a past AAJ president and long-respected national trial lawyer. He has spent his career advancing justice, defending the right to trial by jury, and shaping the future of the profession through his leadership and unwavering commitment to mentorship.

Partner Julie Braman Kane, also a past AAJ President, delivered powerful remarks on Mike’s behalf, celebrating his legacy and the profound impact he’s made on the legal community and beyond. Julie has spent her entire career at Colson Hicks Eidson, a testament to the inspiration Mike has provided to generations of trial lawyers. 

Partner Curtis Miner was also awarded with the Steven J. Sharp Public Service Award, which recognizes plaintiffs and the attorneys of plaintiffs whose cases help tell the story of the American civil justice system. Curt was recognized for his role as one of the court-appointed leaders in the Champlain Towers Condominium Collapse litigation, where he worked alongside a dedicated team of lawyers to change laws to make condominiums safer and helped secure $1.2 billion in settlements for the families and victims.

About Colson Hicks Eidson

Colson Hicks Eidson is a renowned law firm based in Miami, Florida, that is recognized as one of the top trial firms in the United States. Built on a foundation of over 50 years of dedication forging strong client relationships, Colson Hicks Eidson handles local, national, and international litigation, with cases spanning from Miami, Florida, and throughout the United States, to matters in the Caribbean, Central America, South America, and Europe. Learn more at: www.colson.com.

The lawyers at Colson Hicks Eidson are committed to teamwork, professional development, and mentoring our younger lawyers. We are proud to announce that four of our attorneys have been named to the 2025 Lawdragon 500 X – The Next Generation guide. Congratulations to Eleni I. Constant, Aziza F. Elayan, Zachary A. Lipshultz, and Sabrina S. Saieh.

Lawdragon selects lawyers for this guide through independent research, submissions, and peer review, recognizing those who have demonstrated consistent excellence and significant impact, typically within 15 years of graduating law school.

Click here to read the full guide.

About Colson Hicks Eidson

Colson Hicks Eidson is a renowned law firm based in Miami, Florida, that is recognized as one of the top trial firms in the United States. Built on a foundation of over 50 years of dedication forging strong client relationships, Colson Hicks Eidson handles local, national, and international litigation, with cases spanning from Miami, Florida, and throughout the United States, to matters in the Caribbean, Central America, South America, and Europe. Learn more at: www.colson.com.

Colson Hicks Eidson is proud to share that attorneys Zachary A. Lipshultz and Sabrina S. Saieh have been named to the 2025 Florida Super Lawyers Rising Stars list.

Zach’s practice spans all aspects of civil litigation in state, federal, and arbitral forums, at both the trial and appellate levels. He played a key role on the team that recently secured a $3 million damages award for a family of four who suffered significant trauma when a defective lithium-ion battery-powered scooter caused a catastrophic fire that destroyed their home.

Sabrina focuses on product liability, commercial litigation, personal injury, class actions, and multidistrict litigation. She has represented clients in complex matters in federal and state courts, including cases involving defective products, dangerous drugs, catastrophic injuries, and mass torts. She was integral to the Takata Airbag Products Liability MDL—a high-profile class action tied to the largest automotive recall in U.S. history, resulting in settlements exceeding $1 billion.

Rising Stars recognizes top young attorneys who are 40 or under or have been in practice for 10 years or less. Only 2.5% of Florida lawyers earn this honor each year, following the same rigorous selection process used for Super Lawyers.

About Colson Hicks Eidson

Colson Hicks Eidson is a renowned law firm based in Miami, Florida, that is recognized as one of the top trial firms in the United States. Built on a foundation of over 50 years of dedication forging strong client relationships, Colson Hicks Eidson handles local, national, and international litigation, with cases spanning from Miami, Florida, and throughout the United States, to matters in the Caribbean, Central America, South America, and Europe. Learn more at: www.colson.com.

Colson Hicks Eidson is thrilled to announce that seven of its attorneys have been named in the 2025 edition of Florida Super Lawyers. Stephanie Casey, Dean Colson, Joseph J. Kalbac Jr., Julie Braman Kane, and Curtis Miner have been named Super Lawyers. Zachary A. Lipshultz and Sabrina S. Saieh have been recognized as Rising Stars.

Super Lawyers uses a rigorous screening process including independent research, peer nominations, and evaluations to rate lawyers. Only 5 percent of lawyers in Florida are rated by Super Lawyers, and no more than 2.5 percent of lawyers under 40 or with fewer than 10 years of practice are selected as Rising Stars.

About Colson Hicks Eidson

Colson Hicks Eidson is a renowned law firm based in Miami, Florida, that is recognized as one of the top trial firms in the United States. Built on a foundation of over 50 years of dedication forging strong client relationships, Colson Hicks Eidson handles local, national, and international litigation, with cases spanning from Miami, Florida, and throughout the United States, to matters in the Caribbean, Central America, South America, and Europe. Learn more at: www.colson.com.

Congratulations to Colson Hicks Eidson President and Senior Partner Lewis S. “Mike” Eidson and Partner Curt Miner on being selected by the American Association for Justice to receive prestigious awards at the organization’s annual convention.

Mike will receive the Leonard M. Ring Champion of Justice Award, which honors AAJ members of outstanding integrity and character who have demonstrated a lifelong commitment to civil and human rights. A past AAJ president and long-respected national trial lawyer, Mike has spent decades advancing justice and protecting the right to trial by jury. 

“I am honored to receive this recognition,” Mike said. “It’s a privilege to be part of a legal community that shares a commitment to protecting people’s rights and ensuring access to justice.”

Curt was part of the team of attorneys who will receive the Steven J. Sharp Public Service Award, which honors plaintiffs’ attorneys and their clients who bring cases that highlight the vital role of the American civil justice system. Curt will be recognized for his role as one of the court-appointed leaders in the Champlain Towers Condominium Collapse litigation, where he worked alongside a dedicated team of lawyers to help secure $1.2 billion in settlements for the families and victims. 

“It was one of the highlights of my career to work with the team of lawyers appointed by the Court, and our dedicated team at Colson Hicks Eidson, to help the many families that were impacted by this tragedy,” Curt said. 

The awards will be presented in July at the AAJ Annual Convention in San Francisco. Register here.

About Colson Hicks Eidson

Colson Hicks Eidson is a renowned law firm based in Miami, Florida, that is recognized as one of the top trial firms in the United States. Built on a foundation of over 50 years of dedication forging strong client relationships, Colson Hicks Eidson handles local, national, and international litigation, with cases spanning from Miami, Florida, and throughout the United States, to matters in the Caribbean, Central America, South America, and Europe. Learn more at: www.colson.com.