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Review Singulair i LOOKED OUT AT THE SUN AS IT WAS ARISING FOR A FE View Singulair Adverse Event Reports: patient, 90 years of age, weighting 130.1 lb, took Singulair

Learn What Others Think about Singulair Side Effects. Have Your experienced Singulair Side Effects? You are not alone. Many patients report unusual symptoms after using Singulair. This forum raises awareness about Singulair Side Effects.

What Are Your Singulair Side Effects
Gaining Weight (17)
Frustration Intoleranc (13)
Physical Aggression (13)
Anger (12)
Bad Dreams Hallucinations (11)
Physical Aggression, Anger, Frustration Intoleranc (7)
Tics (6)
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Common Singulair Side Effects

top 5 Singulair|Gaining we|Frustratio|Physical a|Anger|Bad dreams|Physical a|Tics adverse effects

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Showing 1-25 of 6227 

Condition Aggravated, Leukopenia, Diarrhoea, Stomatitis (8591657-2)
on Mar 08, 2010 Female patient from UNITED STATES , 90 years of age, weighting 130.1 lb, was treated with Singulair(View Usage). Patient experienced the following unwanted or unexpected effects: condition aggravated, leukopenia, diarrhoea, stomatitis. Singulair dosage: N/A.
Patient was taking other medications:

Pneumonia (8572684-8)
Patient was taking Singulair (View Usage). Patient had the following side effects: pneumonia (pneumonia Questions) on Jul 11, 2011 from UNITED STATES Additional patient health information: Female patient , 53 years of age, was diagnosed with and. Singulair dosage: 10 Mg/daily/po. Patient was hospitalized.

Anaphylactic Reaction (8572616-2)
Adverse event was reported on Jan 20, 2012 by a Female patient taking Singulair (View Usage) (Dosage: 10 Mg/daily/po) . Location: UNITED STATES , 66 years of age, After Singulair was administered, patient had the following side effects: anaphylactic reaction.

Pancreatitis Acute (8572488-6)
on Apr 19, 2012 Female patient from UNITED STATES , 22 years of age, weighting 207.9 lb, was treated with Singulair (View Usage). Patient experienced the following unwanted or unexpected effects: pancreatitis acute. Singulair dosage: N/A.
Patient was taking other medications: Patient was hospitalized.


Hallucination, Nightmare, Agoraphobia, Depression (8490901-X)
on Jun 29, 2012 Female patient from UNITED STATES , 43 years of age, weighting 162.0 lb, was diagnosed with and was treated with Singulair(View Usage). Patient had the following side effects: hallucination, nightmare, agoraphobia, depression (depression Questions). Singulair dosage: 1 Pill Daily.

Abnormal Behaviour, Anger, Mood Altered, Verbal Abuse (8489498-X)
Patient was taking Singulair (View Usage). After Singulair was administered, patient had the following side effects: abnormal behaviour, anger, mood altered, verbal abuse on Jun 28, 2012 from UNITED STATES Additional patient health information: Male patient , 69 years of age, weighting 160.0 lb, was diagnosed with and. Singulair dosage: 10 Mg Daily Po.

Breech Presentation, Premature Labour, Maternal Exposure During Pregnancy (8480197-7)
Adverse event was reported on Jun 28, 2012 by a Female patient taking Singulair (View Usage) (Dosage: N/A) was diagnosed with and. Location: UNITED STATES , 27 years of age, Patient experienced the following unwanted or unexpected effects: breech presentation, premature labour, maternal exposure during pregnancy.
Patient was taking other medications:

Multiple Fractures, Fall (8479884-6)
on Jun 20, 2012 Male patient from FRANCE , child 12 years of age, was diagnosed with and was treated with Singulair (View Usage). Patient had the following side effects: multiple fractures, fall (fall Questions). Singulair dosage: N/A.
Patient was taking other medications:

Nausea, Vertigo (8479009-7)
on Jun 26, 2012 Female patient from SLOVAKIA (Slovak Republic) , 16 years of age, was treated with Singulair(View Usage). After Singulair was administered, patient had the following side effects: nausea (nausea Questions), vertigo. Singulair dosage: N/A. Patient was hospitalized.

Adverse Event, Rash Pruritic, Overdose (8476768-4)
Patient was taking Singulair (View Usage). Patient experienced the following unwanted or unexpected effects: adverse event, rash pruritic, overdose on Jun 21, 2012 from UNITED STATES Additional patient health information: Male patient , 60 years of age, was diagnosed with and. Singulair dosage: N/A.
Patient was taking other medications: Patient was hospitalized.

Arthralgia, Breast Mass, Headache (8475521-5)
Adverse event was reported on Jun 18, 2007 by a Female patient taking Singulair (View Usage) (Dosage: 5 Mg, Qhs) . Location: UNITED STATES , weighting 41.04 lb, Patient had the following side effects: arthralgia, breast mass, headache (headache Questions).
Patient was taking other medications:

Pain, Dyspnoea, Pulmonary Embolism, Injury (8474302-6)
on Jun 19, 2012 Female patient from UNITED STATES , 37 years of age, weighting 123.0 lb, was treated with Singulair (View Usage). After Singulair was administered, patient had the following side effects: pain (pain Questions), dyspnoea, pulmonary embolism (pulmonary embolism Questions), injury. Singulair dosage: N/A.
Patient was taking other medications: Patient was hospitalized.

Urticaria, Asthma (8469313-0)
on Jun 14, 2012 Female patient from UNITED STATES , 59 years of age, weighting 190.0 lb, was diagnosed with and was treated with Singulair(View Usage). Patient experienced the following unwanted or unexpected effects: urticaria, asthma (asthma Questions). Singulair dosage: N/A.
Patient was taking other medications:

Bronchospasm, Therapeutic Response Unexpected, Off Label Use (8466139-9)
Patient was taking Singulair (View Usage). Patient had the following side effects: bronchospasm, therapeutic response unexpected, off label use on Jun 14, 2012 from UNITED STATES Additional patient health information: Male patient , 59 years of age, weighting 175.0 lb, . Singulair dosage: N/A.
Patient was taking other medications:

Allergic Granulomatous Angiitis (8463378-8)
Adverse event was reported on Jun 19, 2012 by a Male patient taking Singulair (View Usage) (Dosage: N/A) was diagnosed with and. Location: FRANCE , 22 years of age, After Singulair was administered, patient had the following side effects: allergic granulomatous angiitis.
Patient was taking other medications: Patient was hospitalized.

Hallucination, Fear (8461230-5)
on Jun 19, 2012 Male patient from UNITED STATES , child 2 years of age, was diagnosed with and was treated with Singulair (View Usage). Patient experienced the following unwanted or unexpected effects: hallucination, fear. Singulair dosage: 4mg Once A Day Po.

Overdose, Pyrexia (8460501-6)
on Jun 19, 2012 Male patient from UNITED STATES , weighting 18.96 lb, was diagnosed with
  • lower respiratory tract infection
  • pyrexia
and was treated with Singulair(View Usage). Patient had the following side effects: overdose, pyrexia. Singulair dosage: Unk.
Patient was taking other medications:

Allergic Granulomatous Angiitis (8459758-7)
Patient was taking Singulair (View Usage). After Singulair was administered, patient had the following side effects: allergic granulomatous angiitis on Jun 16, 2011 from FRANCE Additional patient health information: Male patient , 40 years of age, . Singulair dosage: N/A.

Gastritis, Oesophagitis (8456556-5)
Adverse event was reported on Jun 15, 2012 by a Female patient taking Singulair (View Usage) (Dosage: N/A) was diagnosed with and. Location: UNITED STATES , 56 years of age, Patient experienced the following unwanted or unexpected effects: gastritis, oesophagitis.
Patient was taking other medications:

Rash (8455974-9)
on Jun 14, 2012 Female patient from NETHERLANDS , weighting 143.3 lb, was treated with Singulair (View Usage). Patient had the following side effects: rash (rash Questions). Singulair dosage: N/A.
Patient was taking other medications: Patient was hospitalized.

Depressed Mood, Aggression, Hallucination, Feeling Abnormal (8455122-5)
on Jun 14, 2012 Male patient from UNITED STATES , child 6 years of age, weighting 45.00 lb, was treated with Singulair(View Usage). After Singulair was administered, patient had the following side effects: depressed mood, aggression, hallucination, feeling abnormal. Singulair dosage: N/A.

Insomnia, Tremor (8454665-8)
Patient was taking Singulair (View Usage). Patient experienced the following unwanted or unexpected effects: insomnia, tremor on Jun 15, 2012 from UNITED STATES Additional patient health information: Male patient , child 10 years of age, was diagnosed with and. Singulair dosage: 10mg 1.

Headache, Breast Cancer Stage I (8453974-6)
Adverse event was reported on Jun 12, 2012 by a Female patient taking Singulair (View Usage) (Dosage: N/A) was diagnosed with
  • multiple allergies
and. Location: UNITED STATES , weighting 169.8 lb, Patient had the following side effects: headache (headache Questions), breast cancer stage i.
Patient was taking other medications:

Syncope, Epistaxis (8453598-0)
on Jun 14, 2012 Male patient from PORTUGAL , child 4 years of age, was diagnosed with
  • rhinitis seasonal
and was treated with Singulair (View Usage). After Singulair was administered, patient had the following side effects: syncope, epistaxis. Singulair dosage: N/A.

Right Ventricular Failure, Status Asthmaticus (8451784-7)
on Jun 15, 2012 Male patient from GERMANY , 20 years of age, was treated with Singulair(View Usage). Patient experienced the following unwanted or unexpected effects: right ventricular failure, status asthmaticus. Singulair dosage: N/A.
Patient was taking other medications:

Showing 1-25 of 6227 


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Singulair Adverse Effect Reports (FDA)

Enter Unusual Symptoms or Side Effects:

Singulair Information

Alternative SINGULAIR Names:MONTELUKA

Substance:MONTELUKA

Singulair Dosage, Warnings, Usage.

Side Effects reported to FDA: 6227. View FDA Adverse Reports

Singulair safety alerts: 2009 2008

Reported deaths: 242

Reported hospitalizations: 1949

1Physical Aggression
2Frustration Intoleranc
3Anger
4Gaining Weight
5Bad Dreams Hallucinations
6Physical Aggression, Anger, Frustration Intoleranc
7Strange Taste, Mouscous
8Physical Aggression, Anger, Frustration Intolerance, Rage
9Strange Taste
10Depression
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Insomnia, anxiety, depression, weeping, heart palpitation

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Leukotriene Inhibitors: Montelukast (marketed as Singulair), Zafirlukast (marketed as Accolate), and Zileuton (marketed as Zyflo and Zyflo CR)

Audience: Pulmonology healthcare professionals

[UPDATED 08/28/2009] The June 12, 2009 Healthcare Professional Sheet has been updated.

FDA provided healthcare professionals with updated information on the original March 2008 early communication and January 2009 follow-up communication about the ongoing safety review for the leukotriene inhibitors, montelukast, zafirlukast and zileuton. Neuropsychiatric events have been reported in some patients taking montelukast (Singulair), zafirlukast (Accolate), and zileuton (Zyflo and Zyflo CR). FDA has requested that manufacturers include a precaution in the drug prescribing information (drug labeling). The reported neuropsychiatric events include postmarket cases of agitation, aggression, anxiousness, dream abnormalities and hallucinations, depression, insomnia, irritability, restlessness, suicidal thinking and behavior (including suicide), and tremor. FDA recommends that:

  • Patients and healthcare professionals should be aware of the potential for neuropsychiatric events with these medications.
  • Patients should talk with their healthcare providers if these events occur.
  • Healthcare professionals should consider discontinuing these medications if patients develop neuropsychiatric symptoms.

 

[06/12/2009, Updated 08/28/2009 - Healthcare Professional Sheet - FDA]

Previous MedWatch Alert:

[03/27/2008 - Singulair (montelukast)]

 

further research and contacting my doctor

When did you start feeling unusual symptoms? what was the first symptom? Did your symptoms get worse over time? Did you have similar symptoms before using Singulair? What did Your doctor say? Share Your Story

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Reply to Singulair Questions, Answers, Feedback and Comments

Comments to date: 4. Page 1 of 1.

Mary Dominick   Newfane, NY 14108 

1:38pm on Sunday, November 14th, 2010

I thought I was loosing my mind. After 3 months on Singulair my symptons have become unbearable. I'm... read more »

JOALISE   arecibo puerto rico

11:14pm on Tuesday, February 9th, 2010

can sigulair cause imsomnia?

E Choy   California 

10:57am on Sunday, May 17th, 2009

Increase heart rate and trouble sleeping.

Horacio   Juarez

4:57pm on Monday, May 4th, 2009

Since I have been used singular pills, I stared to feel very depressed and I had havy nigthmares.

Singulair Adverse Reactions
Suicidal Ideation ( 959 Reports)
Depression ( 901 Reports) Depression Questions
Abnormal Behaviour ( 621 Reports)
Aggression ( 618 Reports)
Anxiety ( 600 Reports) Anxiety Questions
Allergic Granulomatous Angiitis ( 512 Reports)
Anger ( 347 Reports)
Insomnia ( 341 Reports)
Crying ( 303 Reports)
Mood Swings ( 285 Reports)
Asthma ( 284 Reports) Asthma Questions
Headache ( 259 Reports) Headache Questions
Nightmare ( 247 Reports)
Mood Altered ( 244 Reports)
Fatigue ( 236 Reports)
Agitation ( 230 Reports)
Dyspnoea ( 220 Reports)
Irritability ( 213 Reports)
Suicide Attempt ( 209 Reports)
Overdose ( 176 Reports)
Abdominal Pain Upper ( 164 Reports)
Feeling Abnormal ( 156 Reports)
Hallucination ( 153 Reports)
Abnormal Dreams ( 146 Reports)
Fear ( 146 Reports)
Depressed Mood ( 144 Reports)
Completed Suicide ( 132 Reports)
Emotional Disorder ( 128 Reports)
Cough ( 124 Reports)
Pain In Extremity ( 124 Reports)

side effects
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