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Mucinex Insomnia Side Effects

Mucinex Insomnia Side Effect Reports


The following Mucinex Insomnia side effect reports were submitted by healthcare professionals and consumers.

This information will help you understand how side effects, such as Insomnia, can occur, and what you can do about them.

A side effect could appear soon after you start Mucinex or it might take time to develop.



Suicidal Ideation, Depression, Anxiety, Feeling Abnormal, Performance Status Decreased, Insomnia, Contraindication To Medical Treatment, Headache

This Insomnia side effect was reported by a consumer or non-health professional from US. A 62-year-old patient (weight:NA) experienced the following symptoms/conditions: sinusitis. The patient was prescribed Mucinex Fast Max Adult Cold Flu Throat (acetaminophen) (dosage: 2 Caplets Every 4 Hours), which was started on NS. Concurrently used drugs: NA. When starting to take Mucinex Fast Max Adult Cold Flu Throat (acetaminophen) the consumer reported the following symptoms:
  • Suicidal Ideation
  • Depression
  • Anxiety
  • Feeling Abnormal
  • Performance Status Decreased
  • Insomnia
  • Contraindication To Medical Treatment
  • Headache
These side effects may potentially be related to Mucinex Fast Max Adult Cold Flu Throat (acetaminophen).
Anxiety, Nervousness, Insomnia, Feeling Jittery, Tremor, Discomfort

This Insomnia Mucinex side effect was reported by a consumer or non-health professional from US on Feb 18, 2013. A Female , 60 years of age, was treated with Mucinex. The patient presented the following health conditions:
  • Anxiety
  • Nervousness
  • Insomnia
  • Feeling Jittery
  • Tremor
  • Discomfort
. Mucinex dosage: 2 Caplets Every 12 Hours.. Additional drugs used at the same time: NA.
Agitation, Muscle Spasms, Hypoaesthesia, Gingival Pain, Insomnia, Feeling Abnormal

This is a Mucinex Dm (guaifenesin) side effect report of a 61-year-old female patient (weight:NA) from US, suffering from the following symptoms/conditions: NA, who was treated with Mucinex Dm (guaifenesin) (dosage:NA, start time: NS), combined with:
  • Mucinex Dm (dextromethorphan Hydrobromide)
, and developed a serious reaction and a Insomnia side effect. The patient presented with:
  • Agitation
  • Muscle Spasms
  • Hypoaesthesia
  • Gingival Pain
  • Insomnia
  • Feeling Abnormal
which developed after the beginning of treatment. This side effect report can indicate a possible existence of increased vulnerability to Mucinex Dm (guaifenesin) treatment in female patients suffering from NA, resulting in Insomnia.

Dizziness, Vision Blurred, Nausea, Feeling Abnormal, Speech Disorder, Abasia, Insomnia, Malaise, Tinnitus

A 33-year-old female patient (weight: NA) from US with the following symptoms: sinus congestion started Mucinex Dm Maximum Strength treatment (dosage: 2 Pills 1 Po) on Feb 07, 2013. Soon after starting Mucinex Dm Maximum Strength treatment, the consumer experienced several side effects, including:
  • Dizziness
  • Vision Blurred
  • Nausea
  • Feeling Abnormal
  • Speech Disorder
  • Abasia
  • Insomnia
  • Malaise
  • Tinnitus
. Concurrently used drugs: NA. This finding indicates that some patients can be more vulnerable to developing Mucinex Dm Maximum Strength side effects, such as Insomnia.
Restless Legs Syndrome, Heart Rate Increased, Nervousness, Insomnia, Dizziness

A female patient from US was prescribed and started Mucinex Fast-max Cold And Sinus on Jan 30, 2013. Patient felt the following Mucinex side effects: restless legs syndrome, heart rate increased, nervousness, insomnia, dizziness Additional patient health information: Female , 58 years of age, The consumer reported the following symptoms: . Mucinex Fast-max Cold And Sinus dosage: Took 2 Caplets On On 15-jan-2013. Concurrently used drugs:
  • Mucinex Sinus-max Day Night Maximum Strength
  • Mucinex Sinus-max Day Night Maximum Strength
Agitation, Insomnia

This report suggests a potential Mucinex Fast Max Adult Cold + Sinus (acetaminophen) Insomnia side effect(s) that can have serious consequences. A 22-year-old patient from US (weight:NA) was diagnosed with the following health condition(s): NA and used Mucinex Fast Max Adult Cold + Sinus (acetaminophen) (dosage: NA) starting Jan 07, 2013. Soon after starting Mucinex Fast Max Adult Cold + Sinus (acetaminophen) the patient began experiencing various side effects, including:
  • Agitation
  • Insomnia
Drugs used concurrently:
  • Mucinex Fast Max Adult Cold + Sinus (guaifenesin)
  • Mucinex Fast Max Adult Cold + Sinus (phenylephrine Hydrochloride)
Although Mucinex Fast Max Adult Cold + Sinus (acetaminophen) demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Insomnia, may still occur.
Vision Blurred, Eye Pain, Insomnia, Wheezing, Feeling Jittery

An adverse event was reported by a consumer or non-health professional on Jan 28, 2013 by a male taking Mucinex Maximum Strength (dosage: NA) was diagnosed with and. Location: US , 47 years of age, patient began experiencing various side effects, including: Directly after treatment started, patient experienced the unwanted or unexpected Mucinex side effects: vision blurred, eye pain, insomnia, wheezing, feeling jittery. Additional medications/treatments:
Associated medications used:
  • Metformin
Abdominal Pain Upper, Anxiety, Dizziness, Restlessness, Insomnia, Nervousness

This Insomnia problem was reported by a consumer or non-health professional from US. A 31-year-old patient (weight: NA) was diagnosed with the following medical condition(s): cough,rhinorrhoea.On Dec 31, 2012 a consumer started treatment with Mucinex Dm Maximum Strength (dosage: 1 Pild 1200 Mg Once Oral). The following drugs/medications were being taken at the same time: NA. When commencing Mucinex Dm Maximum Strength, the patient experienced the following unwanted symptoms /side effects:
  • Abdominal Pain Upper
  • Anxiety
  • Dizziness
  • Restlessness
  • Insomnia
  • Nervousness
Although all drugs are carefully tested before they are licensed for use, they carry potential side effect risks. Some side effects, such as Insomnia, may become evident only after a product is in use by the general population.
Weight Decreased, Asthenia, Gait Disturbance, Dysarthria, Insomnia

This is a Mucinex side effect report of a 74-year-old patient (weight: NA) from UNITED STATES. The patient developed the following symptoms/conditions: NA and was treated with Mucinex (dosage: NA) starting May 05, 2010. Concurrently used drugs:
  • Lisinopril
  • Nifedipine
  • Sprycel
  • Tramadol Hcl
  • Integra Plus
  • Metformin Hydrochloride
  • Zocor
  • Amaryl
Soon after that, the consumer experienced the following of symptoms:
  • Weight Decreased
  • Asthenia
  • Gait Disturbance
  • Dysarthria
  • Insomnia
This opens a possibility that Mucinex could cause Insomnia and that some patients may be more susceptible.
Palpitations, Malaise, Insomnia

This Insomnia side effect was reported by a physician from UNITED STATES on Sep 20, 2010. A female patient from UNITED STATES , weighting 168.2 lb, was diagnosed with and was treated with Mucinex. Directly after treatment started, patient experienced the unwanted or unexpected Mucinex side effects: palpitations, malaise, insomnia. Mucinex dosage: NA.
Associated medications used:
  • Nuvigil
  • Nuvigil (250 Milligram;)
These side effects may potentially be related to Mucinex.
Feeling Of Body Temperature Change, Conversion Disorder, Dizziness, Pyrexia, Paraesthesia, Insomnia, Mydriasis, Delusion, Feeling Abnormal

This Insomnia side effect was reported by a consumer or non-health professional from UNITED STATES. A 25-year-old patient (weight:NA) experienced the following symptoms/conditions: respiratory tract congestion,rhinorrhoea,dependence. The patient was prescribed Mucinex Dm (dosage: On 28-jan-2012.), which was started on NS. Concurrently used drugs: NA. When starting to take Mucinex Dm the consumer reported the following symptoms:
  • Feeling Of Body Temperature Change
  • Conversion Disorder
  • Dizziness
  • Pyrexia
  • Paraesthesia
  • Insomnia
  • Mydriasis
  • Delusion
  • Feeling Abnormal
These side effects may potentially be related to Mucinex Dm.
Dizziness, Headache, Flatulence, Back Pain, Insomnia, Off Label Use, Diarrhoea

This Insomnia Mucinex (guaifenesin) (guaifenesin) side effect was reported by a consumer or non-health professional from UNITED STATES on Oct 27, 2011. A male , 77 years of age, was treated with Mucinex (guaifenesin) (guaifenesin). The patient presented the following health conditions:
  • Dizziness
  • Headache
  • Flatulence
  • Back Pain
  • Insomnia
  • Off Label Use
  • Diarrhoea
. Mucinex (guaifenesin) (guaifenesin) dosage: NA. Additional drugs used at the same time:
  • Daliresp (500 Mcg (500 Mcg, 1 In 1 D), Oral)
  • Daliresp (500 Mcg (500 Mcg, 1 In 1 D), Oral)
  • Finasteride (finasteride) (finasteride)
  • Terazosin (terazosin) (terazosin)
  • Spiriva (tiotropium Bromide) (tiotropium Bromide)
  • Foradil (formoterol Fumarate) (formoterol Fumarate)
Anger, Speech Disorder, Tremor, Insomnia, Mood Swings, Psychomotor Hyperactivity, Accidental Overdose, Confusional State

This is a Mucinex Dm side effect report of a 75-year-old patient (weight:NA) from UNITED STATES, suffering from the following symptoms/conditions: respiratory tract congestion,blood pressure, who was treated with Mucinex Dm (dosage:Took 24 Tablets In 5 To 6 Days, start time: Nov 23, 2011), combined with:
  • Atenolol
  • Simvastatin
  • Finasteride
  • Advair Diskus 100/50
, and developed a serious reaction and a Insomnia side effect. The patient presented with:
  • Anger
  • Speech Disorder
  • Tremor
  • Insomnia
  • Mood Swings
  • Psychomotor Hyperactivity
  • Accidental Overdose
  • Confusional State
which developed after the beginning of treatment. The patient was hospitalized. This side effect report can indicate a possible existence of increased vulnerability to Mucinex Dm treatment in patients suffering from respiratory tract congestion,blood pressure, resulting in Insomnia.
Haemoptysis, Insomnia

A 50-year-old female patient (weight: NA) from UNITED STATES with the following symptoms: NA started Mucinex D treatment (dosage: NA) on Nov 29, 2011. Soon after starting Mucinex D treatment, the consumer experienced several side effects, including:
  • Haemoptysis
  • Insomnia
. Concurrently used drugs: NA. This finding indicates that some patients can be more vulnerable to developing Mucinex D side effects, such as Insomnia.
Tremor, Insomnia, Anger, Mood Swings, Accidental Overdose, Psychomotor Hyperactivity, Confusional State, Speech Disorder

A patient from UNITED STATES was prescribed and started Mucinex Dm on Dec 02, 2011. After Mucinex was administered, patient encountered several Mucinex side effects: tremor, insomnia, anger, mood swings, accidental overdose, psychomotor hyperactivity, confusional state, speech disorder Additional patient health information: male , 75 years of age, The consumer reported the following symptoms: . Mucinex Dm dosage: Took 24 Tablets In 5 To 6 Days. Concurrently used drugs: NA. The patient was hospitalized.
Decreased Appetite, Insomnia

This report suggests a potential Mucinex Dm Insomnia side effect(s) that can have serious consequences. A 16-year-old female patient from UNITED STATES (weight:NA) was diagnosed with the following health condition(s): NA and used Mucinex Dm (dosage: Patient Took 6 Boxes In 7 Days) starting NS. Soon after starting Mucinex Dm the patient began experiencing various side effects, including:
  • Decreased Appetite
  • Insomnia
Drugs used concurrently:NA. Although Mucinex Dm demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Insomnia, may still occur.
Heart Rate Increased, Agitation, Insomnia, Hypertension, Flushing

An adverse event was reported by a consumer or non-health professional on Jul 18, 2011 by a male taking Mucinex D (dosage: NA) . Location: UNITED STATES , 71 years of age, patient began experiencing various side effects, including: Patient felt the following Mucinex side effects: heart rate increased, agitation, insomnia, hypertension, flushing. Additional medications/treatments:
Flushing, Insomnia, Agitation, Hypertension, Heart Rate Increased

This Insomnia problem was reported by a consumer or non-health professional from UNITED STATES. A 71-year-old patient (weight: NA) was diagnosed with the following medical condition(s): NA.On NS a consumer started treatment with Mucinex D (dosage: NA). The following drugs/medications were being taken at the same time: NA. When commencing Mucinex D, the patient experienced the following unwanted symptoms /side effects:
  • Flushing
  • Insomnia
  • Agitation
  • Hypertension
  • Heart Rate Increased
Although all drugs are carefully tested before they are licensed for use, they carry potential side effect risks. Some side effects, such as Insomnia, may become evident only after a product is in use by the general population.
Insomnia, Abnormal Dreams, Nightmare, Hallucination

This is a Mucinex Dm side effect report of a 78-year-old female patient (weight: NA) from UNITED STATES. The patient developed the following symptoms/conditions: NA and was treated with Mucinex Dm (dosage: NA) starting Feb 01, 2011. Concurrently used drugs: NA. Soon after that, the consumer experienced the following of symptoms:
  • Insomnia
  • Abnormal Dreams
  • Nightmare
  • Hallucination
This opens a possibility that Mucinex Dm could cause Insomnia and that some female patients may be more susceptible.
Mobility Decreased, Arrhythmia, Dyspnoea, Pain, Insomnia, Feeling Abnormal, Heart Rate Increased, Fatigue, Tinnitus

This Insomnia side effect was reported by a consumer or non-health professional from UNITED STATES on Feb 18, 2011. A female patient from UNITED STATES , 62 years of age, was treated with Mucinex D. Patient felt the following Mucinex side effects: mobility decreased, arrhythmia, dyspnoea, pain, insomnia, feeling abnormal, heart rate increased, fatigue, tinnitus. Mucinex D dosage: Patient Started Dosing On 12-feb-2011. These side effects may potentially be related to Mucinex D.
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DISCLAIMER: ALL DATA PROVIDED AS-IS, refer to terms of use for additional information.

Mucinex Insomnia Causes and Reviews


Insomnia is a common sleep disorder. If you have it, you may have trouble falling asleep, staying asleep, or both. As a result, you may get too little sleep or have poor-quality sleep. You may not feel refreshed when you wake up.

Symptoms of Insomnia include:

  • Lying awake for a long time before you fall asleep
  • Sleeping for only short periods
  • Being awake for much of the night
  • Feeling as if you haven't slept at all
  • Waking up too early

Your doctor will diagnose Insomnia based on your medical and sleep histories and a physical exam. He or she also may recommend a sleep study. A sleep study measures how well you sleep and how your body responds to sleep problems. Treatments include good sleep habits, counseling, and medicines.

NIH: National Heart, Lung, and Blood Institute


Mucinex Insomnia Reviews

Tue, 28 Feb 2012

I bought Mucinex 12 hour expectorant with 600mg of guaniffesein. I thought this was suppose to thin out the mucus and help expel the phlegm. Instead I experienced a terrific headache, sinus pressure in my ears , and it dried up all my mucus (like using an antihistamine) that I never had any productive cough or expelling of phlegm! I also drank herbal teas with lemon and honey and homemade vegetable soup during the day and sipped on tea all day long. I was so dried up and headachy that I had to use steam from a boiling pot to help open and moisten sinus airways. After a while I decided to eat a lot of real food to help absorb the potency of this formula. NEVER NEVER take this! I returned it to Walgreen's and got my money back. Instead of helping my cold, Mucinex made my whole day un bearable!

Sat, 17 Mar 2012

Do not take Mucinex if you are allergic to sulfa drugs. My son is highly allergic to sulfa and has had several reactions while taking Mucinex over the last 6 months. We just found out that it was the Mucinex and not any other exposure that was causing his hives/rash/itching/swelling/etc. This last reaction was worse than any other reaction he has had. After the Mucinex was out of his system he began to get better. Now we are warning all our friends and family - Dont take this if you have a sulfa allergy!

Tue, 06 Mar 2012

Had a very bad cold with an unrelenting cough.  Took Mucinex DM on pharmacists recommendation.  First night was great, slept didn't cough as much.  continued with medication.  
Second day -Started feeling unusually sleepy/ cold /weird headache loose bowels nausea odd feelings  Put it down to the cold getting worse.  Second day read box for side effects.  NONE I was having.  Day three -Now horrible cramping diarrhea, nausea and dehydration though drinking clear fluids non stop.  becoming irrational and hypersensitive, face felt slightly numb. Finally checked the internet and found this.Soon as stopped, much better.  Still have a cold, but I don't care.  Lemon, honey and Irish whiskey working much better for me.

Sat, 27 Oct 2012

I have fibromylgia cannot see any reason to take musinex for it.

Fri, 27 Apr 2012

Mucinex is good but I agree, I used it and got some diziness and fatigue.

Wed, 01 Feb 2012

my urine was also a sickening sweet smell after taking musinex. i had horrible nausea when i took it then the next day the urine smell.

Mon, 16 Apr 2012

great stuff

Thu, 29 Mar 2012

My lungs are failing and I believe its from 3 doses of Muscinex dm. I had Bronchitis and took Muscinex on advice from my Dr. A week before that I had quit smoking, so now that's all anyone pays attention to, but while I smoked I NEVER had any lung problems. I quit because I got tired of the smell around me, not because of any physical problems. I have never had any excess mucus, in fact I have never coughed.
Twice now I have been unable to draw in breath and have had to be hospitalized. One of my nurses agreed that the drug may have glazed my lungs, and that's exactly how they feel now. My voice is raspy and I lose it completely every few days, usually from trying to have a conversation.
I am seeing a pulmonary specialist who has me on Spiriva until tests are finished but neither that, Albuterol or Flovent have any effect on how I feel. I am extremely short of breath when talking on the phone or even walking to the car. I have gained 20 lbs from my inactivity and that doesn't help.
Muscinex has changed my life drastically, and may be what ends it. That stuff needs to be pulled.

Fri, 25 Jan 2013

Thanks everyone for your input!  I had sinus infection and was put on antibiotics and Mucinex DM.  Had blurry vision and was very dizzy.  Thought it was the antibiotics.  PCP changed me to a different antibiotics not realizing it was the Mucinex.  My last dose of Mucinex was Sunday and my eyes are still dilated.....blurry vision. Mucinex made me so dizzy, I couldn't stand up. I weigh 98 lbs and so the side effects are lasting a lot longer.  So glad I found all your comments.....this helps!

Thu, 29 Mar 2012

My husband was taking Mucinex routinely for COPD to thin the heavy mucus, but after about 3 weeks, he began having serious mucusy coughing fits, then had emotional bouts.  After reading this site, I had him stop and the problems cleared in about 15 hours.  

DISCLAIMER: ALL DATA PROVIDED AS-IS, refer to terms of use for additional information.

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Top Mucinex Side Effects

Dizziness (326)
Blood Pressure Increased (226)
Headache (181)
Epistaxis (169)
Nausea (164)
Feeling Abnormal (159)
Heart Rate Increased (127)
Diarrhoea (124)
Hallucination (121)
Insomnia (115)
Dyspnoea (110)
Anxiety (108)
Vomiting (84)
Hypertension (73)
Confusional State (69)
Loss Of Consciousness (63)
Haemoptysis (62)
Tremor (55)
Asthenia (53)
Somnolence (46)
Palpitations (43)
Nervousness (41)
Off Label Use (38)
Hyperhidrosis (35)
Disorientation (35)
Urticaria (34)
Fatigue (34)
Abdominal Pain Upper (32)
Accidental Overdose (30)
Overdose (30)
Chest Pain (29)
Convulsion (28)
Cough (28)
Malaise (25)
Feeling Jittery (24)
Syncope (24)
Hypoaesthesia (24)
Lip Swelling (23)
Lethargy (23)
Psychomotor Hyperactivity (22)
Hypersensitivity (22)
Pharyngeal Oedema (22)
Faeces Discoloured (22)
Agitation (22)
Rash (21)
Chest Discomfort (21)
Unevaluable Event (21)
Vision Blurred (21)
Mucosal Haemorrhage (20)
Dysphagia (20)

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