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Mucinex Side Effects

Report Mucinex Side Effects

If you experienced any harmful or unwanted effects of Mucinex, please share your experience. This could help to raise awareness about Mucinex side effects, identify uknown risks and inform health professionals and patients taking Mucinex.

Examples: headache, dizziness


The most commonly reported Mucinex side effects are:
Heart Palpitations (278 reports)
Dizziness (235 reports)
Diarrhea (215 reports)
Sleeplessness (186 reports)
Sleepiness (91 reports)
Pounding Heart (91 reports)
Sleeplessness, Heart Palpitations (63 reports)
Nausea (39 reports)
Leg Cramps (38 reports)

If you have experienced a side effect listed above, you can check a box to report it.


To view a complete list of submitted side effects, please follow the link Mucinex side effects . You can also compare Mucinex side effects or view FDA reports.

Mucinex Side Effects reported to FDA

The following Mucinex reports list potential signals of serious risks and new safety information that were identified using the FDA Adverse Event Reporting System (FAERS).
The FAERS is a database that contains information on adverse event and medication errors reports submitted to FDA by healthcare professionals (such as physicians, pharmacists, nurses and others), consumers (such as patients, family members, layers and others) and manufacturers.


The appearance of Mucinex on this list does not mean that FDA has concluded that the drug has the listed risk. It means that FDA has identified a potential safety issue, but it does not mean that FDA has identified a causal relationship between the drug and the listed risk.

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Agitation, Pruritus, Insomnia, Restlessness
on Feb 03, 2014 Female from US , 81 years of age, was treated with Mucinex D Maximum Strength. Directly after, patient experienced the unwanted or unexpected Mucinex side effects: agitation, pruritus, insomnia, restlessness. Mucinex D Maximum Strength dosage: N/A.

Agitation, Unevaluable Event, Diarrhoea
Patient was taking Mucinex Fast Max Dm Liquid. Patient felt the following Mucinex side effects: agitation, unevaluable event, diarrhoea on Feb 03, 2014 from US Additional patient health information: Male , 48 years of age, . Mucinex Fast Max Dm Liquid dosage: Multiple Doses Of The Product Over A 5 Day Period; Last Took About 2 Weeks Ago.
Multiple prescriptions taken:

Blood Glucose Increased, Vomiting
Adverse event was reported on Jan 28, 2014 by a Female taking Mucinex Fast-max Severe Congestion And Cough (Dosage: 20ml (1 Time) On 12-jan-2014) . Location: US , 30 years of age, After Mucinex was administered, patient encountered several Mucinex side effects: blood glucose increased, vomiting.
Multiple concurrent drugs taken: Patient was hospitalized.

Heart Rate Decreased, Intentional Overdose, Off Label Use, Blood Pressure Increased, Headache, Vomiting, Nausea
on Jan 24, 2014 Female from US , 77 years of age, was diagnosed with and was treated with Mucinex Fast-max Severe Congestion And Cough. Directly after, patient experienced the unwanted or unexpected Mucinex side effects: heart rate decreased, intentional overdose, off label use, blood pressure increased, headache, vomiting, nausea. Mucinex Fast-max Severe Congestion And Cough dosage: Drank About Six Doses; Amount Used: 3/4 Of The Bottle.


Hallucination, Gait Disturbance
on Jan 24, 2014 Male from US , 16 years of age, was treated with Mucinex Dm Maximum Strength. Patient felt the following Mucinex side effects: hallucination, gait disturbance. Mucinex Dm Maximum Strength dosage: Last Took On 15-jan-2014.

Rectal Haemorrhage
Patient was taking Mucinex Fast Max Severe Congestion And Cough Liquid. After Mucinex was administered, patient encountered several Mucinex side effects: rectal haemorrhage on Jan 23, 2014 from US Additional patient health information: Female , 85 years of age, . Mucinex Fast Max Severe Congestion And Cough Liquid dosage: N/A.

Restlessness, Insomnia, Off Label Use
Adverse event was reported on Jan 22, 2014 by a Female taking Mucinex Maximum Strength (Dosage: Patient Took Last Dose At 10:00 P.m. On 09-jan-2014.) was diagnosed with and. Location: US , 44 years of age, Directly after, patient experienced the unwanted or unexpected Mucinex side effects: restlessness, insomnia, off label use.

Blood Pressure Diastolic Increased, Palpitations, Feeling Abnormal, Thirst, Dysphonia, Contraindication To Medical Treatment, Tongue Dry, Unevaluable Event, Dizziness
on Feb 10, 2014 Female from US , 64 years of age, was diagnosed with and was treated with Mucinex Dm Maximum Strength. Patient felt the following Mucinex side effects: blood pressure diastolic increased, palpitations, feeling abnormal, thirst, dysphonia, contraindication to medical treatment, tongue dry, unevaluable event, dizziness. Mucinex Dm Maximum Strength dosage: Every 12 Hours.
Multiple prescriptions taken:

Restlessness, Insomnia, Off Label Use
on Jan 21, 2014 Male from US , 47 years of age, was diagnosed with and was treated with Mucinex Maximum Strength. After Mucinex was administered, patient encountered several Mucinex side effects: restlessness, insomnia, off label use. Mucinex Maximum Strength dosage: Patient Took Last At 10:00 P.m. On 09-jan-2014..

Loss Of Consciousness, Somnolence, Dizziness
Patient was taking Mucinex Dm. Directly after, patient experienced the unwanted or unexpected Mucinex side effects: loss of consciousness, somnolence, dizziness on Jan 28, 2014 from US Additional patient health information: Female , 64 years of age, . Mucinex Dm dosage: 2 Tablets Every 12 Hours.

Grand Mal Convulsion, Hallucination, Abdominal Pain Upper, Vomiting, Disorientation, Anxiety, Muscle Twitching, Memory Impairment, Clumsiness
Adverse event was reported on Jan 13, 2014 by a Male taking Mucinex (Dosage: 1 Tablet) was diagnosed with and. Location: US , 61 years of age, weighting 155.0 lb, Patient felt the following Mucinex side effects: grand mal convulsion, hallucination, abdominal pain upper, vomiting, disorientation, anxiety, muscle twitching, memory impairment, clumsiness. Patient was hospitalized and became disabled.

Pharyngeal Oedema, Aphagia, Dysphagia, Unevaluable Event
on Feb 03, 2014 Female from US , 59 years of age, was diagnosed with and was treated with Mucinex Fast Max Severe Congestion And Cough Liquid. After Mucinex was administered, patient encountered several Mucinex side effects: pharyngeal oedema, aphagia, dysphagia, unevaluable event. Mucinex Fast Max Severe Congestion And Cough Liquid dosage: N/A.

Hypoxia, Dyspnoea, Presyncope
on Jan 22, 2014 Female from US , 98 years of age, was diagnosed with and was treated with Mucinex Maximum Strength. Directly after, patient experienced the unwanted or unexpected Mucinex side effects: hypoxia, dyspnoea, presyncope. Mucinex Maximum Strength dosage: Patient Took Last Dose At 09:00 A.m. On 06-jan-2014..

Hypersensitivity, Loss Of Consciousness, Hypertension, Throat Tightness, Swollen Tongue, Confusional State, Dyspnoea, Somnolence, Urticaria
Patient was taking Mucinex Sinus Max Severe Congestion Caplet. Patient felt the following Mucinex side effects: hypersensitivity, loss of consciousness, hypertension, throat tightness, swollen tongue, confusional state, dyspnoea, somnolence, urticaria on Jan 17, 2014 from US Additional patient health information: Male , 65 years of age, . Mucinex Sinus Max Severe Congestion Caplet dosage: One Caplet. Last Used On 28-dec-2013. Patient was hospitalized.

Lymphadenopathy, Swollen Tongue, Glossodynia, Condition Aggravated
Adverse event was reported on Jan 14, 2014 by a Female taking Mucinex Dm Maximum Strength (Dosage: Took 1 Tablet Orally On 03-jan-2014) . Location: US , 63 years of age, After Mucinex was administered, patient encountered several Mucinex side effects: lymphadenopathy, swollen tongue, glossodynia, condition aggravated.

Blood Pressure Decreased, Presyncope, Heart Rate Decreased, Pallor
on Jan 17, 2014 Male from US , 74 years of age, was treated with Mucinex Dm Maximum Strength. Directly after, patient experienced the unwanted or unexpected Mucinex side effects: blood pressure decreased, presyncope, heart rate decreased, pallor. Mucinex Dm Maximum Strength dosage: Last Used On 31-dec-2013 At 6 Am.

Hallucination
on Jan 10, 2014 Male from US , child 10 years of age, weighting 80.01 lb, was diagnosed with and was treated with Mucinex. Patient felt the following Mucinex side effects: hallucination. Mucinex dosage: Taken By Mouth.

Vaginal Haemorrhage, Swelling Face, Urticaria
Patient was taking Mucinex Fast Max Liquid Severe Cold. After Mucinex was administered, patient encountered several Mucinex side effects: vaginal haemorrhage, swelling face, urticaria on Jan 10, 2014 from US Additional patient health information: Female , 29 years of age, . Mucinex Fast Max Liquid Severe Cold dosage: N/A.

Apnoea, Vocal Cord Disorder, Aphonia
Adverse event was reported on Jan 10, 2014 by a Female taking Mucinex Fast Max Night Time Cold + Flu Liquid (Dosage: N/A) was diagnosed with and. Location: US , 66 years of age, Directly after, patient experienced the unwanted or unexpected Mucinex side effects: apnoea, vocal cord disorder, aphonia.

Choking, Dysphagia
on Jan 10, 2014 Female from US , 68 years of age, was treated with Mucinex Maximum Strength. Patient felt the following Mucinex side effects: choking, dysphagia. Mucinex Maximum Strength dosage: 1 Tablet Every 12 Hours.

Genital Haemorrhage, International Normalised Ratio Abnormal
on Jan 10, 2014 Male from US , 79 years of age, was treated with Mucinex Dm. After Mucinex was administered, patient encountered several Mucinex side effects: genital haemorrhage, international normalised ratio abnormal. Mucinex Dm dosage: Last Took On 22dec2013.
Multiple concurrent drugs taken:

Restlessness, Insomnia
Patient was taking Mucinex Fast-max Severe Congestion And Cough. Directly after, patient experienced the unwanted or unexpected Mucinex side effects: restlessness, insomnia on Jan 09, 2014 from US Additional patient health information: Female , 66 years of age, . Mucinex Fast-max Severe Congestion And Cough dosage: Took 20ml Every 4-6 Hours.

Hypotension, Presyncope, Fall, Asthenia
Adverse event was reported on Jan 14, 2014 by a Male taking Mucinex Dm Maximum Strength (Dosage: N/A) . Location: US , 81 years of age, Patient felt the following Mucinex side effects: hypotension, presyncope, fall, asthenia.
Multiple prescriptions taken: Patient was hospitalized.

Hallucination, Unresponsive To Stimuli, Confusional State
on Jan 09, 2014 Female from US , 87 years of age, was treated with Mucinex Dm. After Mucinex was administered, patient encountered several Mucinex side effects: hallucination, unresponsive to stimuli, confusional state. Mucinex Dm dosage: Patient Has Been Taking Mucinex Dm For The Last 3 Weeks..
Multiple concurrent drugs taken:

Choking, Anxiety, Dyspnoea, Foreign Body, Vomiting
on Jan 09, 2014 Male from US , 75 years of age, was treated with Mucinex Maximum Strength. Directly after, patient experienced the unwanted or unexpected Mucinex side effects: choking, anxiety, dyspnoea, foreign body, vomiting. Mucinex Maximum Strength dosage: Patient Took Last Dose At 10:00 P.m. On 30-dec-2013. Patient Took Total Of 2 Doses..

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Record and Track Your Side Effects

It is very important to keep track of all side effects and discuss them with your doctor. If you think you may have a medical emergency, call your doctor or 911 immediately.

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Most drugs have a large list of nonsevere or mild adverse effects which do not rule out continued usage. These effects depend on individual sensitivity, and can include nausea, dizziness, diarrhea, malaise, vomiting, headache, dermatitis, dry mouth, etc. Check commonly reported side effects . These can be considered a form of pseudo-allergic reaction, as not all users experience these effects; many users experience none at all.

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

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