Mucinex Hypersensitivity Side Effect Reports


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

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


Eyelid Oedema, Lacrimation Increased, Hypoaesthesia, Hypersensitivity

This Hypersensitivity 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: NA. The patient was prescribed Mucinex Dm (dosage: NA), which was started on Jan 31, 2014. Concurrently used drugs: NA. When starting to take Mucinex Dm the consumer reported the following symptoms:
  • Eyelid Oedema
  • Lacrimation Increased
  • Hypoaesthesia
  • Hypersensitivity
These side effects may potentially be related to Mucinex Dm.
Hypersensitivity, Pharyngeal Oedema, Throat Tightness, Dyspnoea, Hypopnoea, Dry Mouth, Dizziness

This Hypersensitivity Mucinex D side effect was reported by a consumer or non-health professional from US on Feb 20, 2014. A Female , 73 years of age, was treated with Mucinex D. The patient presented the following health conditions:
  • Hypersensitivity
  • Pharyngeal Oedema
  • Throat Tightness
  • Dyspnoea
  • Hypopnoea
  • Dry Mouth
  • Dizziness
. Mucinex D dosage: Took 1 Tablets On 07-feb-2014.. Additional drugs used at the same time:
  • Crestor
  • Amlodipine
  • Antibiotic
Hypersensitivity, Loss Of Consciousness, Hypertension, Throat Tightness, Swollen Tongue, Confusional State, Dyspnoea, Somnolence, Urticaria

This is a Mucinex Sinus Max Severe Congestion Caplet side effect report of a 65-year-old patient (weight:NA) from US, suffering from the following symptoms/conditions: NA, who was treated with Mucinex Sinus Max Severe Congestion Caplet (dosage:One Caplet. Last Used On 28-dec-2013, start time: Dec 28, 2013), combined with: NA., and developed a serious reaction and a Hypersensitivity side effect. The patient presented with:
  • Hypersensitivity
  • Loss Of Consciousness
  • Hypertension
  • Throat Tightness
  • Swollen Tongue
  • Confusional State
  • Dyspnoea
  • Somnolence
  • Urticaria
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 Sinus Max Severe Congestion Caplet treatment in patients suffering from NA, resulting in Hypersensitivity.
Syncope, Unresponsive To Stimuli, Blood Pressure Decreased, International Normalised Ratio Increased, Cold Sweat, Hypersensitivity, Dizziness

A 85-year-old patient (weight: NA) from US with the following symptoms: cough started Mucinex Fast Max Dm Max treatment (dosage: NA) on Nov 12, 2013. Soon after starting Mucinex Fast Max Dm Max treatment, the consumer experienced several side effects, including:
  • Syncope
  • Unresponsive To Stimuli
  • Blood Pressure Decreased
  • International Normalised Ratio Increased
  • Cold Sweat
  • Hypersensitivity
  • Dizziness
. Concurrently used drugs:
  • Coumadin
The patient was hospitalized. This finding indicates that some patients can be more vulnerable to developing Mucinex Fast Max Dm Max side effects, such as Hypersensitivity.
Hypersensitivity, Anxiety, Dizziness, Confusional State, Panic Disorder, Dyspnoea, Palpitations, Tremor, Peripheral Coldness

A female patient from US was prescribed and started Mucinex Fast Max Caplets Severe Congestion + Cold (acetaminophen) on Aug 01, 2013. Patient felt the following Mucinex side effects: hypersensitivity, anxiety, dizziness, confusional state, panic disorder, dyspnoea, palpitations, tremor, peripheral coldness Additional patient health information: Female , 46 years of age, The consumer reported the following symptoms: was diagnosed with and. Mucinex Fast Max Caplets Severe Congestion + Cold (acetaminophen) dosage: Took First Dose At 2 O^clock In Aternoon And Second At 6 Pm. Concurrently used drugs: NA.
Hypersensitivity, Swelling, Pruritus, Rash

This report suggests a potential Mucinex Dm Maximum Strength Hypersensitivity side effect(s) that can have serious consequences. A 55-year-old patient from US (weight:NA) was diagnosed with the following health condition(s): NA and used Mucinex Dm Maximum Strength (dosage: Last Used On 30-jun-2013) starting Jun 29, 2013. Soon after starting Mucinex Dm Maximum Strength the patient began experiencing various side effects, including:
  • Hypersensitivity
  • Swelling
  • Pruritus
  • Rash
Drugs used concurrently:NA. Although Mucinex Dm Maximum Strength demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Hypersensitivity, may still occur.
Hypersensitivity, Blood Pressure Increased, Headache

An adverse event was reported by a consumer or non-health professional on Jun 27, 2013 by a Female taking Mucinex D (dosage: Patient Took A Total Of 2 Doses.) was diagnosed with and. Location: US , 68 years of age, weighting 123.5 lb, patient began experiencing various side effects, including: Directly after treatment started, patient experienced the unwanted or unexpected Mucinex side effects: hypersensitivity, blood pressure increased, headache. Additional medications/treatments:
Associated medications used:
  • Lovastatin
  • Zithromax
Hallucination, Euphoric Mood, Dizziness, Headache, Hypersensitivity, Visual Impairment, Feeling Abnormal, Balance Disorder, Hypoaesthesia

This Hypersensitivity 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 Hypersensitivity, may become evident only after a product is in use by the general population.
Lip Swelling, Eye Swelling, Auricular Swelling, Eyelid Oedema, Pruritus, Rash, Hypersensitivity, Off Label Use

This is a Mucinex Fast-max Cold And Sinus side effect report of a patient (weight: NA) from US. The patient developed the following symptoms/conditions: nasal congestion and was treated with Mucinex Fast-max Cold And Sinus (dosage: NA) starting Sep 08, 2012. Concurrently used drugs: NA. Soon after that, the consumer experienced the following of symptoms:
  • Lip Swelling
  • Eye Swelling
  • Auricular Swelling
  • Eyelid Oedema
  • Pruritus
  • Rash
  • Hypersensitivity
  • Off Label Use
This opens a possibility that Mucinex Fast-max Cold And Sinus could cause Hypersensitivity and that some patients may be more susceptible.
Lip Swelling, Oral Pruritus, Rash, Aphonia, Hypersensitivity

This Hypersensitivity side effect was reported by a consumer or non-health professional from US on Dec 11, 2012. A female patient from US , 44 years of age, was treated with Mucinex. Directly after treatment started, patient experienced the unwanted or unexpected Mucinex side effects: lip swelling, oral pruritus, rash, aphonia, hypersensitivity. Mucinex dosage: 1 Tablet / 12 Hours For 2 Days Totaling 3 Mucinex Tablets. Last On 02-dec-2012..
Associated medications used:
  • Vitamin D
These side effects may potentially be related to Mucinex.
Hypersensitivity, Heart Rate Increased, Lip Swelling, Local Swelling, Dyspnoea, Night Sweats, Abnormal Dreams, Dry Mouth, Nervousness

This Hypersensitivity side effect was reported by a consumer or non-health professional from US. A 65-year-old female patient (weight:NA) experienced the following symptoms/conditions: NA. The patient was prescribed Mucinex Fast Max Adult Dm (dextromethorphan Hydrobromide) (dosage: Took 2 Doses 21 Hours Apart On 10-dec-2012 And 11-dec-2012), which was started on Dec 10, 2012. Concurrently used drugs:
  • Mucinex Fast Max Adult Dm (guaifenesin)
  • Lamictal
  • Keppra
  • Keppra
  • Lamitol
  • Lamitol
When starting to take Mucinex Fast Max Adult Dm (dextromethorphan Hydrobromide) the consumer reported the following symptoms:
  • Hypersensitivity
  • Heart Rate Increased
  • Lip Swelling
  • Local Swelling
  • Dyspnoea
  • Night Sweats
  • Abnormal Dreams
  • Dry Mouth
  • Nervousness
These side effects may potentially be related to Mucinex Fast Max Adult Dm (dextromethorphan Hydrobromide).
Hypersensitivity, Pharyngeal Oedema, Pharyngeal Hypoaesthesia, Anxiety, Feeling Cold, Pain, Headache, Throat Irritation, Dizziness

This Hypersensitivity Mucinex Fast Max Adult Cold Flu Throat (acetaminophen) side effect was reported by a consumer or non-health professional from US on Jan 22, 2013. A Female , 39 years of age, was treated with Mucinex Fast Max Adult Cold Flu Throat (acetaminophen). The patient presented the following health conditions:
  • Hypersensitivity
  • Pharyngeal Oedema
  • Pharyngeal Hypoaesthesia
  • Anxiety
  • Feeling Cold
  • Pain
  • Headache
  • Throat Irritation
  • Dizziness
. Mucinex Fast Max Adult Cold Flu Throat (acetaminophen) dosage: 20 Ml One Dose. Additional drugs used at the same time:
  • Mucinex Fast Max Adult Cold Flu Throat (dextromethorphan Hydrobromide)
  • Mucinex Fast Max Adult Cold Flu Throat (guaifenesin)
  • Mucinex Fast Max Adult Cold Flu Throat (phenylephrine Hydrochloride)
  • Sambucol-elderberry
Anxiety, Dehydration, Migraine, Hypersensitivity, Haemoptysis, Syncope, Depressed Level Of Consciousness, Muscle Tightness, Speech Disorder

This is a Mucinex Dm side effect report of a 36-year-old female patient (weight:NA) from US, suffering from the following symptoms/conditions: nasal congestion, who was treated with Mucinex Dm (dosage:Took 1 Tablet On 04-dec-2012 Or 05-dec-2012 Around 9am, start time: NS), combined with: NA., and developed a serious reaction and a Hypersensitivity side effect. The patient presented with:
  • Anxiety
  • Dehydration
  • Migraine
  • Hypersensitivity
  • Haemoptysis
  • Syncope
  • Depressed Level Of Consciousness
  • Muscle Tightness
  • Speech Disorder
which developed after the beginning of treatment. This side effect report can indicate a possible existence of increased vulnerability to Mucinex Dm treatment in female patients suffering from nasal congestion, resulting in Hypersensitivity.
Lip Swelling, Throat Irritation, Lacrimation Increased, Hypersensitivity

A 32-year-old female patient (weight: NA) from US with the following symptoms: NA started Mucinex treatment (dosage: NA) on Feb 05, 2013. Soon after starting Mucinex treatment, the consumer experienced several side effects, including:
  • Lip Swelling
  • Throat Irritation
  • Lacrimation Increased
  • Hypersensitivity
. Concurrently used drugs: NA. This finding indicates that some patients can be more vulnerable to developing Mucinex side effects, such as Hypersensitivity.
Lip Swelling, Urticaria, Off Label Use, Rash, Erythema Infectiosum, Hypersensitivity

A female patient from UNITED STATES was prescribed and started Mucinex on Apr 20, 2012. After Mucinex was administered, patient encountered several Mucinex side effects: lip swelling, urticaria, off label use, rash, erythema infectiosum, hypersensitivity Additional patient health information: Female , child 3 years of age, weighting 39.68 lb, The consumer reported the following symptoms: was diagnosed with and. Mucinex dosage: NA. Concurrently used drugs: NA.
Dizziness, Abdominal Pain Upper, Feeling Hot, Blood Pressure Increased, Hypersensitivity, Nausea, Urticaria

This report suggests a potential Mucinex Dm Hypersensitivity side effect(s) that can have serious consequences. A 72-year-old patient from UNITED STATES (weight:NA) was diagnosed with the following health condition(s): NA and used Mucinex Dm (dosage: 3 Months Ago, Right Before Christmas, Took ^a Few^ Tablets) starting NS. Soon after starting Mucinex Dm the patient began experiencing various side effects, including:
  • Dizziness
  • Abdominal Pain Upper
  • Feeling Hot
  • Blood Pressure Increased
  • Hypersensitivity
  • Nausea
  • Urticaria
Drugs used concurrently:
  • Insulin
  • Amitriptyline Hydrochloride
  • Aspirin
Although Mucinex Dm demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Hypersensitivity, may still occur.
Hypersensitivity, Gestational Diabetes, Premature Rupture Of Membranes, Cough

An adverse event was reported by a consumer or non-health professional on Feb 07, 2012 by a Female taking Mucinex (dosage: Unk Unk, Prn) . Location: UNITED STATES , 46 years of age, weighting 233.7 lb, patient began experiencing various side effects, including: Patient felt the following Mucinex side effects: hypersensitivity, gestational diabetes, premature rupture of membranes, cough. Additional medications/treatments:
Multiple prescriptions taken:
  • Prenatal Vitamins /01549301/ (Unk)
  • Renata (Unk Unk, Qd)
  • Nasonex (Unk Unk, Qd)
  • Enbrel (50 Mg, Qwk)
Irritable Bowel Syndrome, Hypersensitivity, Herpes Zoster, Poor Venous Access, Dysuria

This Hypersensitivity problem was reported by a physician from UNITED STATES. A 55-year-old female patient (weight: NA) was diagnosed with the following medical condition(s): NA.On Oct 26, 2010 a consumer started treatment with Mucinex (dosage: NA). The following drugs/medications were being taken at the same time:
  • Vivelle
  • Lasix
  • Motrin
  • Serevent
  • Protonix
  • Vitamin B-12
  • Naprosyn
  • Tysabri
When commencing Mucinex, the patient experienced the following unwanted symptoms /side effects:
  • Irritable Bowel Syndrome
  • Hypersensitivity
  • Herpes Zoster
  • Poor Venous Access
  • Dysuria
The patient was hospitalized. Although all drugs are carefully tested before they are licensed for use, they carry potential side effect risks. Some side effects, such as Hypersensitivity, may become evident only after a product is in use by the general population.
Chest Discomfort, Dizziness, Dyspnoea, Headache, Hypersensitivity, Nausea, Oedema Peripheral, Swelling Face

This is a Mucinex side effect report of a 66-year-old female patient (weight: NA) from UNITED STATES. The patient developed the following symptoms/conditions: increased upper airway secretion,chronic obstructive pulmonary disease,thyroid disorder and was treated with Mucinex (dosage: Patient Took One Tablet Once Or Twice Daily) starting NS. Concurrently used drugs: NA. Soon after that, the consumer experienced the following of symptoms:
  • Chest Discomfort
  • Dizziness
  • Dyspnoea
  • Headache
  • Hypersensitivity
  • Nausea
  • Oedema Peripheral
  • Swelling Face
The patient was hospitalized. This opens a possibility that Mucinex could cause Hypersensitivity and that some female patients may be more susceptible.
Chest Discomfort, Dizziness, Dyspnoea, Headache, Hypersensitivity, Oedema Peripheral, Swelling Face

This Hypersensitivity side effect was reported by a consumer or non-health professional from UNITED STATES on Nov 18, 2010. A female patient from UNITED STATES , 66 years of age, was diagnosed with and was treated with Mucinex. Patient felt the following Mucinex side effects: chest discomfort, dizziness, dyspnoea, headache, hypersensitivity, oedema peripheral, swelling face. Mucinex dosage: Patient Took One Tablet Once Or Twice Daily. The patient was hospitalized. These side effects may potentially be related to Mucinex.

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

Mucinex Hypersensitivity Causes and Reviews


An allergy is a reaction by your immune system to something that does not bother most other people. People who have allergies often are sensitive to more than one thing. Substances that often cause reactions are

  • Pollen
  • Dust mites
  • Mold spores
  • Pet dander
  • Food
  • Insect stings
  • Medicines

Normally, your immune system fights germs. It is your body's defense system. In most allergic reactions, however, it is responding to a false alarm. Genes and the environment probably both play a role.

Allergies can cause a variety of symptoms such as a runny nose, sneezing, itching, rashes, swelling, or asthma. Allergies can range from minor to severe. Anaphylaxis is a severe reaction that can be life-threatening. Doctors use skin and blood tests to diagnose allergies. Treatments include medicines, allergy shots, and avoiding the substances that cause the reactions.

NIH: National Institute of Allergy and Infectious Diseases


Mucinex Hypersensitivity 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 (365)
Blood Pressure Increased (242)
Nausea (185)
Headache (184)
Epistaxis (170)
Feeling Abnormal (162)
Heart Rate Increased (132)
Hallucination (129)
Insomnia (125)
Diarrhoea (124)
Dyspnoea (110)
Anxiety (109)
Vomiting (87)
Hypertension (73)
Confusional State (73)
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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