- A new FDA boxed warning cautions against prescribing the asthma and allergy drug Singulair for people with mild symptoms, including those with hay fever.
- FDA officials say the potential for serious side effects from Singulair includes mental health issues such as suicidal thoughts.
- The officials say these side effects may outweigh the potential benefits of the drug and alternative therapies should be used instead.
As spring starts to arrive in most places, warmer weather also brings a less-welcome new arrival: pollen.
While others get to enjoy the change of weather and blossoming trees, people with allergies deal with stuffy noses, watery eyes, and congested sinuses.
There are a number of allergy drugs that can help make spring more enjoyable. But, like most medications, those drugs carry their own potential side effects.
For one such drug, the potential side effects may outweigh the potential benefits.
FDA officials note this is the most prominent type of warning. It shows up on packaging inserts with a black box around it.
In the case of Singulair, the agency said the warning advises against prescribing the drug for people with mild symptoms, especially for those with hay fever.
The warning comes in response to “continued reports of neuropsychiatric events with montelukast, such as agitation, depression, sleeping problems, and suicidal thoughts and actions,” FDA officials said.
The agency found those risks may outweigh the benefits for some people, particularly when other drugs or other therapies can be used instead.
For those with hay fever, only people who haven’t responded to or can’t tolerate other therapies should use Singulair, the agency said.
The FDA first included a warning on the drug in 2008.
That was after
Support for the stronger warning
The boxed warning is a step that the Allergy and Asthma Network (AAN) has been pushing for.
“AAN was the only national patient organization to advocate for this ‘black box’ warning,” Tonya Winders, president and chief executive officer of AAN, told Healthline. “We have reports of thousands of families impacted by the neuropsychiatric side effects of Singulair/montelukast.”
Winders noted that figure accounts for fewer than 10 percent of the total number of people who’ve taken the medication, but “it is important to recognize the warning signs and talk with your doctor about alternative treatments.”
For people with hay fever, Winders suggests that “allergen immunotherapy, avoidance and other prescription or over-the-counter medications also may help.”
Other possible treatments
Alternative treatments to treat hay fever could include antihistamines, eye drops, or just being aware of what’s causing the allergies and trying to avoid triggers. That could include closing windows and washing hands more frequently.
Other allergy drugs come with their own potential side effects.
First-generation antihistamines such as Benadryl can cause drowsiness as well as headaches and dizziness. In the most serious cases, they can cause vision or urination problems.
Second- and third-generation antihistamines such as Allegra, Claritin, and Zyrtec reportedly have less potential for side effects, although drowsiness and headaches can still occur.
But none of the allergy medications likely have the potential mental health side effects of montelukast.
How Singulair works
Singulair works a bit differently than drugs such as antihistamines.
It prevents inflammation, thus keeping airways open
“This is the only medication in this class of drugs,” Winders said. “We are unaware of any other allergy/asthma medications that have this neuropsychiatric side effect.
For people who are taking the drug, she cautioned, “While rare, it is important for patients to recognize the warning (signs) and take proper steps to change treatment plan with your doctor’s guidance.”
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