Mucinex Headache Side Effect Reports


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

This information will help you understand how side effects, such as Headache, 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.


Heart Rate Decreased, Intentional Overdose, Off Label Use, Blood Pressure Increased, Headache, Vomiting, Nausea

This Headache side effect was reported by a health professional from US. A 77-year-old female patient (weight:NA) experienced the following symptoms/conditions: nasopharyngitis,respiratory tract congestion,blood pressure. The patient was prescribed Mucinex Fast-max Severe Congestion And Cough (dosage: Drank About Six Doses; Amount Used: 3/4 Of The Bottle), which was started on Jan 07, 2014. Concurrently used drugs: NA. When starting to take Mucinex Fast-max Severe Congestion And Cough the consumer reported the following symptoms:
  • Heart Rate Decreased
  • Intentional Overdose
  • Off Label Use
  • Blood Pressure Increased
  • Headache
  • Vomiting
  • Nausea
These side effects may potentially be related to Mucinex Fast-max Severe Congestion And Cough.
Eyelid Oedema, Headache

This Headache Mucinex Fast Max Dm Liquid side effect was reported by a health professional from US on Dec 31, 2013. A Female , 65 years of age, was treated with Mucinex Fast Max Dm Liquid. The patient presented the following health conditions:
  • Eyelid Oedema
  • Headache
. Mucinex Fast Max Dm Liquid dosage: NA. Additional drugs used at the same time: NA.
Extrasystoles, Heart Rate Increased, Headache, Malaise

This is a Mucinex Dm side effect report of a 64-year-old patient (weight:NA) from US, suffering from the following symptoms/conditions: lower respiratory tract infection, who was treated with Mucinex Dm (dosage:1 Tablet On 01-dec-2013, start time: Dec 01, 2013), combined with: NA., and developed a serious reaction and a Headache side effect. The patient presented with:
  • Extrasystoles
  • Heart Rate Increased
  • Headache
  • Malaise
which developed after the beginning of treatment. This side effect report can indicate a possible existence of increased vulnerability to Mucinex Dm treatment in patients suffering from lower respiratory tract infection, resulting in Headache.
Convulsion, Speech Disorder, Amnesia, Headache, Somnolence, Unevaluable Event, Chest Pain, Neck Pain

A 31-year-old female patient (weight: NA) from US with the following symptoms: NA started Mucinex treatment (dosage: Patient Took Last Dose On 20-nov-2013) on Nov 20, 2013. Soon after starting Mucinex treatment, the consumer experienced several side effects, including:
  • Convulsion
  • Speech Disorder
  • Amnesia
  • Headache
  • Somnolence
  • Unevaluable Event
  • Chest Pain
  • Neck Pain
. Concurrently used drugs:
  • Ibuprofen (Patient Took Half Of 800 Mg Tablet On 20-nov-2013)
  • Cough Syrup
  • Cough Syrup
  • Lisinopril
  • Ropinirole
This finding indicates that some patients can be more vulnerable to developing Mucinex side effects, such as Headache.
Anxiety, Headache, Tremor

A female patient from US was prescribed and started Mucinex D on Nov 11, 2013. Patient felt the following Mucinex side effects: anxiety, headache, tremor Additional patient health information: Female , 84 years of age, The consumer reported the following symptoms: . Mucinex D dosage: NA. Concurrently used drugs: NA.
Viith Nerve Paralysis, Headache, Speech Disorder, Off Label Use

This report suggests a potential Mucinex Fast Max Adult Cold + Sinus Headache side effect(s) that can have serious consequences. A 42-year-old female patient from US (weight:NA) was diagnosed with the following health condition(s): multiple allergies and used Mucinex Fast Max Adult Cold + Sinus (dosage: 2 Tablets Every 4 Hours.) starting Sep 03, 2013. Soon after starting Mucinex Fast Max Adult Cold + Sinus the patient began experiencing various side effects, including:
  • Viith Nerve Paralysis
  • Headache
  • Speech Disorder
  • Off Label Use
Drugs used concurrently:NA. Although Mucinex Fast Max Adult Cold + Sinus demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Headache, may still occur.
Epistaxis, Headache

An adverse event was reported by a consumer or non-health professional on Jul 16, 2013 by a Female taking Mucinex (dosage: 1 Spray Every 12 Hours, Last Used On 28-jun-2013) . Location: US , 42 years of age, patient began experiencing various side effects, including: Directly after treatment started, patient experienced the unwanted or unexpected Mucinex side effects: epistaxis, headache. Additional medications/treatments:
Hypersensitivity, Blood Pressure Increased, Headache

This Headache problem was reported by a consumer or non-health professional from US. A 68-year-old female patient (weight: NA) was diagnosed with the following medical condition(s): nasal congestion,blood cholesterol.On NS a consumer started treatment with Mucinex D (dosage: Patient Took A Total Of 2 Doses.). The following drugs/medications were being taken at the same time:
  • Lovastatin
  • Zithromax
When commencing Mucinex D, the patient experienced the following unwanted symptoms /side effects:
  • Hypersensitivity
  • Blood Pressure Increased
  • Headache
Although all drugs are carefully tested before they are licensed for use, they carry potential side effect risks. Some side effects, such as Headache, may become evident only after a product is in use by the general population.
Hallucination, Aggression, Anxiety, Sleep Talking, Personality Change, Feeling Abnormal, Abdominal Discomfort, Headache, Unevaluable Event

This is a Mucinex Dm side effect report of a 60-year-old patient (weight: NA) from US. The patient developed the following symptoms/conditions: respiratory tract congestion and was treated with Mucinex Dm (dosage: Took 1 Tablet At 3:00 Pm On 08-apr-2013.) starting Apr 08, 2013. Concurrently used drugs:
  • Prilosec
Soon after that, the consumer experienced the following of symptoms:
  • Hallucination
  • Aggression
  • Anxiety
  • Sleep Talking
  • Personality Change
  • Feeling Abnormal
  • Abdominal Discomfort
  • Headache
  • Unevaluable Event
This opens a possibility that Mucinex Dm could cause Headache and that some patients may be more susceptible.
Disturbance In Attention, Fall, Confusional State, Headache

This Headache side effect was reported by a consumer or non-health professional from US on Apr 26, 2013. A female patient from US , 72 years of age, was diagnosed with and was treated with Mucinex Dm. Directly after treatment started, patient experienced the unwanted or unexpected Mucinex side effects: disturbance in attention, fall, confusional state, headache. Mucinex Dm dosage: NA.
Associated medications used:
  • Prozac
These side effects may potentially be related to Mucinex Dm.
Blood Pressure Increased, Palpitations, Hyperhidrosis, Pallor, Headache, Dizziness, Malaise, Nausea

This Headache side effect was reported by a consumer or non-health professional from US. A 49-year-old female patient (weight:NA) experienced the following symptoms/conditions: hypersensitivity. The patient was prescribed Mucinex D (dosage: Took A Tablet On 29-mar-2013 In The Morning.), which was started on Mar 29, 2013. Concurrently used drugs:
  • Multivitamin (Taken Once A Day.)
When starting to take Mucinex D the consumer reported the following symptoms:
  • Blood Pressure Increased
  • Palpitations
  • Hyperhidrosis
  • Pallor
  • Headache
  • Dizziness
  • Malaise
  • Nausea
These side effects may potentially be related to Mucinex D.
Heart Rate Decreased, Asthenia, Headache, Dizziness

This Headache Mucinex D Maximum Strength side effect was reported by a consumer or non-health professional from US on Mar 26, 2013. A male , 78 years of age, was treated with Mucinex D Maximum Strength. The patient presented the following health conditions:
  • Heart Rate Decreased
  • Asthenia
  • Headache
  • Dizziness
. Mucinex D Maximum Strength dosage: Started Taking On ??/nov/2012.1 Tablet On 20-nov-2012. Additional drugs used at the same time: NA. The patient was hospitalized.
Asthma, Chest Discomfort, Feeling Jittery, Headache

This is a Mucinex side effect report of a 55-year-old female patient (weight:NA) from US, suffering from the following symptoms/conditions: NA, who was treated with Mucinex (dosage:NA, start time: Oct 17, 2012), combined with: NA., and developed a serious reaction and a Headache side effect. The patient presented with:
  • Asthma
  • Chest Discomfort
  • Feeling Jittery
  • Headache
which developed after the beginning of treatment. This side effect report can indicate a possible existence of increased vulnerability to Mucinex treatment in female patients suffering from NA, resulting in Headache.
Extrasystoles, Abdominal Pain Upper, Insomnia, Pallor, Constipation, Confusional State, Hypertension, Headache, Diarrhoea

A 69-year-old patient (weight: NA) from US with the following symptoms: NA started Mucinex Fast Max Adult Congestion + Cough treatment (dosage: NA) on Oct 08, 2012. Soon after starting Mucinex Fast Max Adult Congestion + Cough treatment, the consumer experienced several side effects, including:
  • Extrasystoles
  • Abdominal Pain Upper
  • Insomnia
  • Pallor
  • Constipation
  • Confusional State
  • Hypertension
  • Headache
  • Diarrhoea
. Concurrently used drugs: NA. This finding indicates that some patients can be more vulnerable to developing Mucinex Fast Max Adult Congestion + Cough side effects, such as Headache.
Depression, Anxiety, Abdominal Discomfort, Diarrhoea, Headache, Nausea

A female patient from US was prescribed and started Mucinex on Oct 30, 2012. After Mucinex was administered, patient encountered several Mucinex side effects: depression, anxiety, abdominal discomfort, diarrhoea, headache, nausea Additional patient health information: Female , 57 years of age, The consumer reported the following symptoms: . Mucinex dosage: NA. Concurrently used drugs:
  • Antibiotics
Hallucination, Heart Rate Increased, Headache, Diarrhoea, Feeling Abnormal

This report suggests a potential Mucinex Dm Maximum Strength Headache side effect(s) that can have serious consequences. A 50-year-old female patient from US (weight:NA) was diagnosed with the following health condition(s): NA and used Mucinex Dm Maximum Strength (dosage: NA) starting Oct 10, 2012. Soon after starting Mucinex Dm Maximum Strength the patient began experiencing various side effects, including:
  • Hallucination
  • Heart Rate Increased
  • Headache
  • Diarrhoea
  • Feeling Abnormal
Drugs used concurrently:
  • Levothyroxin
Although Mucinex Dm Maximum Strength demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Headache, may still occur.
Hallucination, Intentional Overdose, Feeling Abnormal, Dizziness, Headache

An adverse event was reported by a consumer or non-health professional on Oct 11, 2012 by a Female taking Mucinex Dm Maximum Strength (dosage: Patient Took 14 Tablets Last Night) . Location: US , 20 years of age, patient began experiencing various side effects, including: Patient felt the following Mucinex side effects: hallucination, intentional overdose, feeling abnormal, dizziness, headache. Additional medications/treatments:
Multiple prescriptions taken:
  • Xanax
Hallucination, Euphoric Mood, Dizziness, Headache, Hypersensitivity, Visual Impairment, Feeling Abnormal, Balance Disorder, Hypoaesthesia

This Headache problem was reported by a consumer or non-health professional from US. A 59-year-old female patient (weight: NA) was diagnosed with the following medical condition(s): NA.On Sep 10, 2012 a consumer started treatment with Mucinex Dm Maximum Strength (dosage: NA). The following drugs/medications were being taken at the same time:
  • Qvar
  • Loratadine
  • Hydrochlorothiazide
  • Flonase
  • Zithromax
When commencing Mucinex Dm Maximum Strength, the patient experienced the following unwanted symptoms /side effects:
  • Hallucination
  • Euphoric Mood
  • Dizziness
  • Headache
  • Hypersensitivity
  • Visual Impairment
  • Feeling Abnormal
  • Balance Disorder
  • Hypoaesthesia
Although all drugs are carefully tested before they are licensed for use, they carry potential side effect risks. Some side effects, such as Headache, may become evident only after a product is in use by the general population.
Glaucoma, Eye Pain, Headache, Facial Pain

This is a Mucinex D Maximum Strength side effect report of a 43-year-old female patient (weight: NA) from US. The patient developed the following symptoms/conditions: NA and was treated with Mucinex D Maximum Strength (dosage: Last Dose Was Taken On 03-sep-2012) starting Sep 03, 2012. Concurrently used drugs:
  • Tylenol
  • Birth Control Pills (Once A Day)
  • Metoprolol (Once A Day)
Soon after that, the consumer experienced the following of symptoms:
  • Glaucoma
  • Eye Pain
  • Headache
  • Facial Pain
This opens a possibility that Mucinex D Maximum Strength could cause Headache and that some female patients may be more susceptible.
Disorientation, Confusional State, Headache, Overdose

This Headache side effect was reported by a consumer or non-health professional from US on Nov 22, 2012. A female patient from US , 36 years of age, was diagnosed with and was treated with Mucinex Dm Maximum Strength (guaifenesin). Patient felt the following Mucinex side effects: disorientation, confusional state, headache, overdose. Mucinex Dm Maximum Strength (guaifenesin) dosage: NA. These side effects may potentially be related to Mucinex Dm Maximum Strength (guaifenesin).
1 of 5 

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

Mucinex Headache Causes and Reviews


Almost everyone has had a Headache. Headache is the most common form of pain. It's a major reason people miss days at work or school or visit the doctor.

The most common type of Headache is a tension Headache. Tension Headaches are due to tight muscles in your shoulders, neck, scalp and jaw. They are often related to stress, depression or anxiety. You are more likely to get tension Headaches if you work too much, don't get enough sleep, miss meals, or use alcohol.

Other common types of Headaches include migraines, cluster Headaches, and sinus Headaches. Most people can feel much better by making lifestyle changes, learning ways to relax and taking pain relievers.

Not all Headaches require a doctor's attention. But sometimes Headaches warn of a more serious disorder. Let your health care provider know if you have sudden, severe Headaches. Get medical help right away if you have a Headache after a blow to your head, or if you have a Headache along with a stiff neck, fever, confusion, loss of consciousness, or pain in the eye or ear.

NIH: National Institute of Neurological Disorders and Stroke


Mucinex Headache 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!

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.

Thu, 12 Feb 2009
Got severe Headaches, dizziness, and nausea.
Tue, 16 Feb 2010
Took 4 hour version til bottle was empty amp; switched to 12 hour type. Headaches, teeth sensitivity to cold, teeth hurt so bad went to dentist. Feeling awful, will stop taking.
Wed, 14 Apr 2010
After taking Mucinex I experienced a severe sinus Headache that nearly had me in tears. I took 2 tabs at about 6PM and was in bed about 2hours later because i couln't stand the pain of the Headache. I had a diffcult time getting to sleep and staying asleep.
Thu, 21 Oct 2010
WELL OF COURSE THERE IS SOME CHEST DISCOMFORT, DOCS WARNED ME ABOUT THAT. BUT NOW I'M AWARE THAT MY HEADACHES AREN'T FROM SINUS PRESSURE ANYMORE. AS FOR MY HEART, I HAVEN'T NOTICED AN ABNORMAL RATE OR PALPATATIONS, BUT I MOST DEFINITELY DO FEEL KIND OF FUNKY.
Fri, 22 Oct 2010
I did have sinus infection symptoms (stuffy nose, cough...) Now I have all that plus I'm constantly dizzy, I'm nauseous, I have to struggle to breathe, and the smell of the pills is constantly lingering in my head and making my nausea worse. I have awful stabbing Headaches and the stuff still isn't making me cough up anything! I sure wish I could go back in time a week to when I just had a sinus infection...
Thu, 11 Nov 2010
It gave me a nasty migraine Headache, and I can't recall having a Headache this bad since college. It took several days to get it all flushed out of my system, and my scalp is still sore - the sensation of having my hair pulled up too tight. I had used it before without problem, but never again. It was the new cough control formula.
Fri, 26 Nov 2010
I just started last night the use of Mucinex DM and I had a pleasant night without cough. My only minor side effect has been a slightly Headache, but this is nothing compared with the persistent cough that I had before.
DISCLAIMER: ALL DATA PROVIDED AS-IS, refer to terms of use for additional information.

Common Drugs

Abilify (10132)
Adderall (1304)
Amlodipine (6664)
Amoxicillin (4387)
Benadryl (1568)
Celebrex (12876 )
Celexa (1342)
Cialis (2975)
Cipro (8580)
Citalopram (7792)
Crestor (18839)
Cymbalta (14373)
Doxycycline (1757)
Effexor (7289)
Flexeril (435)
Flomax (2177)
Fluoxetine (4261)
Gabapentin (4593)
Hydrocodone (2469)
Ibuprofen (8222)
Lantus (10968)
Lexapro (3499)
Lipitor (17769)
Lisinopril (8919)
Lyrica (27148)
Medrol (650)
Mirena (41254)
Mobic (957)
Morphine (5356)
Naproxen (538)
Neurontin (6501)
Oxycodone (4438)
Pradaxa (13372)
Prednisone (5926)
Prilosec (2631)
Prozac (1954)
Seroquel (27216)
Simvastatin (8348)
Synthroid (4452)
Tamiflu (5585)
Topamax (3748)
Tramadol (5054)
Trazodone (1458)
Viagra (5394)
Vicodin (1153)
Wellbutrin (6324)
Xanax (2847)
Zocor (5718)
Zoloft(6792)
Zyrtec(1669)

Top Mucinex Side Effects

Dizziness (313)
Blood Pressure Increased (225)
Headache (181)
Epistaxis (168)
Nausea (159)
Feeling Abnormal (153)
Heart Rate Increased (125)
Diarrhoea (124)
Hallucination (119)
Dyspnoea (107)
Anxiety (106)
Insomnia (106)
Vomiting (84)
Hypertension (73)
Confusional State (68)
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)

➢ More

Discuss Mucinex Side Effects