What Are the Side Effects of Singulair - morgan and morgan lawyers
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What Are the Side Effects of Singulair?

What Are the Side Effects of Singulair?

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What Are the Side Effects of Singulair?

Singulair is a drug that treats conditions such as asthma and allergies. If a doctor prescribed the drug to you or a loved one, you might wonder, “What are the side effects of Singulair?” While not all side effects are severe, some individuals develop suicidal thoughts, suicidal behavior, and other significant adverse mental health effects after taking Singulair. Numerous suicides were also linked to the drug. Consequently, The U.S. Food and Drug Administration (FDA) issued a serious health warning regarding Singulair in early 2020. 

If you or a loved one suffered severe adverse health effects after taking Singulair, you could file a lawsuit and pursue compensation such as medical expenses, pain and anguish, loss of income, and more. Every day, Morgan & Morgan’s attorneys fight powerful and greedy corporations that put profit over people. We want you to receive the care and attention you deserve and the compensation you need to go on with your life after suffering an injury. Contact us now for a free case review.

What Is Singulair?

Singulair is an anti-inflammatory used to treat and prevent asthma attacks, including exercise-induced asthma, in adults and children. Doctors also prescribe the drug for seasonal and year-round allergies, so-called allergic rhinitis. The drug can prevent wheezing, chest tightness, coughing, and difficulty breathing in those living with asthma. Similarly, Singulair also relieves allergy symptoms such as sneezing and runny nose.

Although not officially approved by the FDA to treat the condition, the drug is occasionally prescribed to treat chronic urticaria (hives). The drug works by blocking the substances in the body that can cause allergies and asthma. The FDA first approved Singulair (montelukast) in 1998. The drug is also available in generic form and comes as tablets, chewable tablets, and oral granules.

Side Effects Linked to Singulair

Some common side effects of Singulair (montelukast) include:

  • Headache
  • Stomach pain
  • Fever
  • Respiratory infection
  • Throat irritation
  • Abnormal liver function tests
  • Cough
  • Stomach pain
  • Diarrhea
  • Runny nose
  • Sinus infection
  • The flu
  • Diarrhea

Singulair’s infrequent side effects can include stomach infection, ear infection, toothache, dizziness, general weakness, and others.

Rare but Potentially Severe Singulair Side Effects

The drug Singulair has come under fire for some of the rare but potentially severe and life-changing neurological and mental health side effects, which can include:

  • Suicidal thoughts
  • Suicidal behavior
  • Aggressive or hostile behavior
  • Depression 
  • Anxiousness
  • Bad dreams and insomnia
  • Disorientation and Confusion
  • Hallucinations
  • Uncontrolled muscle movements

When looking at what the side effects of Singulair are, it is important to note that each patient responds differently to medication. Individuals taking Singulair could experience a range of side effects, depending on their overall health, other medicines they are taking, and other factors.

The FDA Linked Serious Side-Effects to Singulair

While all medicines potentially have side effects, even when prescribed and used correctly, some risks are disproportionate to the potential benefits. In March 2020, the FDA strengthened existing warnings about the drug, requiring the FDA’s most severe warning, a so-called “black box warning,” on every unit of Singulair. The agency stated that this was necessary because many doctors and patients were unaware of the drug’s severe mental health risks. Patients taking Singulair could experience extreme mood-related and behavioral changes and might even attempt suicide during treatment with the drug. 

The FDA further stated that for some patients with mild disease, who could use alternative drugs, the benefits of using Singulair may not outweigh the risks. Patients suffering from allergies should only take Singulair if they cannot tolerate other medicines or cannot be treated effectively with alternative medication. Further, according to the FDA, doctors treating asthma patients should consider the risks and benefits of potential mental health side effects before prescribing Singulair. The agency also issued a recommendation to stop using the drug immediately when any mental health side effects occur.

Singulair Can Accumulate in Patients’ Brains

Animal studies suggest that Singulair can cross over the blood-brain barrier, which protects the brain from toxins and pathogens. Singulair’s ability to cross the protective barrier can lead to the drug accumulating in the brain tissue of patients, where it could potentially cause neurological and mental health disorders.

According to a study published by the National Center for Biotechnology Information (NCBI), the use of montelukast is associated with adverse drug reactions involving the mental health of patients, including depression, aggression, and nightmares. However, the medication continues to be prescribed to millions of asthma and allergy sufferers, a large proportion of them children.

Singulair Lawsuits

Unfortunately, for some, the FDA warnings come too late. Families of those who suffered devastating mental health problems and committed suicide after taking the drug argue that they never knew about the adverse health effects until their loved ones committed suicide. However, lawsuits allege that the Singulair manufacturer Merck & Co. knew of the risks and potential mental health side effects for years but failed to communicate this to patients and medical providers until recently. 

Moreover, Merck had previously applied to patent the drug for use in patients experiencing cerebral spasms. Therefore, the drug manufacturer must have been aware that the drug could pass through the blood-brain barrier and potentially affect the brain of patients. The patent for Singulair to treat cerebral spasms was filed in 1996, a full two years before the drug was approved for the treatment of asthma and allergies in 1998. 

The Manufacturer Could Be Liable for Your Damages

While no drug is without side effects, manufacturers must ensure their drug is reasonably safe for consumers. Side effects should not be so severe that the risks of taking a drug outweigh the benefits. When drugmakers put profit before the safety of consumers and deliberately hold back information or fail to warn patients of serious side effects, they could be liable for victims’ damages. 

If you or a family member suffered serious side effects from taking Singulair, consider seeking legal advice promptly as you could have a case and receive compensation. Our lawyers can walk you through your legal options and help you move forward with a claim.

Compensation Singulair Victims Could Receive

If you suffered harm due Singulair, you could be entitled to damages, including: 

  • Healthcare expenses 
  • Future medical bills
  • Psychological counseling
  • Loss of income 
  • Awards for emotional anguish 
  • Out-of-pocket costs

You could also qualify for other damages, depending on the scope of your injury and expenses.  

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  • Should I Change My Asthma Medication? 

    If you recently found out about what the side effects of Singulair are, you might want to consider alternative medications to treat your asthma or allergy. In particular, if you have a history of depression, anxiety, or other mental health issues, finding an alternative to Singulair can be a good idea. However, make sure to consult with your trusted doctor first, before taking action and stopping or changing medications. While you may have various options to treat an allergy or asthma, consider that other leukotriene inhibitors may produce similar side effects as Singulair.

  • Could I File a Singulair Lawsuit?

    If you or a loved one developed significant mental health symptoms after using Singulair, you could have a case and seek compensation. The best way to determine whether you have a case is by arranging a free consultation with our legal team. We can assess your situation and advise you of your legal rights and options for seeking damages. 

  • Is There a Time Limit for Filing a Dangerous Drug Lawsuit?

    All personal injury lawsuits, including those involving dangerous drugs, have to be filed within a specific timeframe. Your state laws determine how much time you have for filing a lawsuit. Missing the deadline could mean that your case gets thrown out. The time generally starts running down on the day that you or your doctor discovered your injury from the bad drug. If you believe that you have a case, you should seek legal advice as soon as possible to ensure you do not miss any vital deadlines.

  • How Can I Prove a Singulair Lawsuit?

    Fighting a bad drug lawsuit can be intimidating and complex. Moreover, drug manufacturers typically have a team of lawyers at their disposal, fighting liability claims tooth and nail. Patients looking to receive compensation for suffering adverse health effects will have to prove that: 

    • They suffered an injury
    • The drug was defective or lacked adequate warnings 
    • The drug’s lack of warning or defect directly caused the injury
  • Should I Hire a Lawyer for a Singulair Lawsuit?

    Taking on a large and powerful company by yourself may not only feel intimidating and overwhelming, but it can also set you up for failure. The other side will most likely take full advantage of a claimant lacking adequate legal representation. You could end up with nothing except court expenses to pay, even if you potentially have an excellent case against a drug giant. 

    Pharmaceutical lawsuits involve complex medical and legal issues. Drug manufacturers are always fighting lawsuits and have teams of lawyers on retainer. To give yourself the best chance of success, consider working with our seasoned and determined attorneys who have experience with handling dangerous drug lawsuits. 

  • How Much Is My Singulair Case Worth?

    There is no average settlement in a dangerous drug lawsuit. Therefore, it is impossible to know at the outset how much your case is worth. The value of your case can depend on several factors, including:

    • Your damages such as healthcare costs and lost income
    • The extent and permanence of your injury or condition
    • Strong liability or fault of the drug manufacturer

    It can be helpful to discuss your injury and damages with an attorney who could advise you on the approximate worth of your case.

  • How Long Does a Bad Drug Lawsuit Take?

    Pharmaceutical litigation is notoriously lengthy and complex, and a dangerous drug lawsuit can take several years. Reaching an out-of-court settlement, while generally quicker than fighting a lawsuit, can also be challenging. Drug manufacturers are usually reluctant to offer quick settlements as they could face a flood of demands and cases from other harmed patients. 

    Moreover, giant international pharmaceuticals know that time is on their side, and it is in their best interests to delay the outcome of a lawsuit for as long as possible. Such companies have the resources to go all in and hire teams of doctors and lawyers to fight claimants. However, with America’s largest personal injury firm on your side, you can rest assured that our attorneys have the experience and resources to stand up to drug giants. We fight hard and vigorously for the best possible outcome in the fastest time. 

  • Can I Sue My Doctor for Prescribing Singulair?

    If you have a case, you can potentially hold anyone in the drug distribution chain to account for your damages. This could include the doctor who prescribed Singulair, the pharmacy dispensing the medication, a pharmaceutical representative, the manufacturer, and others. An attorney at Morgan & Morgan can identify all potentially liable parties in your case.

  • Morgan & Morgan Stands Up to Drug Manufacturers

    Medications should make us feel better, not worse. When the side effects of Singulair are worse than the condition you are trying to treat, something is clearly wrong. Unfortunately, we see every day what happens when companies put profits above the safety of people. When a manufacturer fails to disclose devastating side effects or a serious drug defect, innocent people can lose their health, their livelihoods, and even their lives. 

    When someone else is responsible, you should not have to carry the financial burden of your injury. Morgan & Morgan never shy away from holding big corporations to account for their illegal or unethical conduct. When they endanger people’s health and lives, we fight them with all that we’ve got. 

    Morgan & Morgan has your back during a challenging time. We want to give you the best chance of winning and receiving compensation. You pay nothing at all unless we win and recover compensation for you. Our legal team is waiting for your call or email. Contact us today to determine your next best steps in a free case review. 

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Last updated on Nov 28, 2022

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