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Robaxin Side Effects

Common Robaxin Side Effects


The most commonly reported Robaxin side effects (click to view or check a box to report):

Pain (8)
Pulmonary Embolism (4)
Burning Sensation (3)
Diarrhoea (3)
Bone Disorder (3)
Anxiety (3)
Dyspnoea (3)
Deep Vein Thrombosis (3)
Fatigue (3)
Rash (3)
Overdose (3)
Malaise (3)
Inflammation (3)
White Blood Cell Count Decreased (2)
Injury (2)
Vomiting (2)
Insomnia (2)
Nausea (2)
Suicidal Ideation (2)
Surgery (2)

➢ More



If you or someone in your family has experienced a serious side effect to a health product, you are encouraged to report the experience to your health care professional (e.g. physician, pharmacist). You could also complete a copy of the side effect reporting form or report your side effect to FDA.

Side effects reports are analyzed to discover potential health product safety signals. Some important reactions may take an extremely long time to develop or occur infrequently. Continued monitoring of adverse reactions is thus essential to maintain a comprehensive safety and effectiveness profile of health products.

Robaxin Side Effects Reported to FDA

The following Robaxin reports list potential signals of serious risks and new safety information that were identified using the FDA Adverse Event Reporting System (FAERS).
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 Robaxin 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 found a causal relationship between the drug and the listed risk.
Pain, Hypoacusis, Malaise, Myalgia, Arthralgia
This is a report of a 69-year-old female patient (weight: NA) from US, suffering from the following symptoms/conditions: NA, who was treated with Robaxin (dosage: NA, start time: NS), combined with:
  • Spiriva
  • Clopidogrel
  • Enoxaparin
  • Oxycodone
  • Warfarin
  • Hydrocodone
  • Levothyroxine
  • Vitamin D Nos
and developed a serious reaction and side effect(s). The consumer presented with:
  • Pain
  • Hypoacusis
  • Malaise
  • Myalgia
  • Arthralgia
which developed after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Robaxin treatment in female patients, resulting in pain side effect. The patient was hospitalized.

Intraductal Proliferative Breast Lesion, Back Pain, Temporomandibular Joint Syndrome, Fibromyalgia
This report suggests a potential Robaxin Intraductal Proliferative Breast Lesion, Back Pain, Temporomandibular Joint Syndrome, Fibromyalgia side effect(s) that can have serious consequences. A 51-year-old female patient (weight: NA) from US was diagnosed with the following symptoms/conditions: NA and used Robaxin (dosage: NA) starting 2012. Soon after starting Robaxin the patient began experiencing various side effects, including:
  • Intraductal Proliferative Breast Lesion
  • Back Pain
  • Temporomandibular Joint Syndrome
  • Fibromyalgia
Drugs used concurrently:
  • Celebrex
  • Zithromax
  • Diazepam (Present)
  • Hydromorphone (Present)
The patient was hospitalized and became disabled. Although Robaxin demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as intraductal proliferative breast lesion, may still occur.

Overdose, Suicidal Ideation, Refusal Of Treatment By Patient
This Overdose, Suicidal Ideation, Refusal Of Treatment By Patient problem was reported by a consumer or non-health professional from US. A 51-year-old female patient (weight: NA) was diagnosed with the following symptoms/conditions: muscle spasms,multiple sclerosis. On Apr 27, 2008 this consumer started treatment with Robaxin (dosage: NA). The following drugs were being taken at the same time:
  • Glatiramer Acetate (20 Mg; Injection)
  • Prazosin
  • Ropinirole
  • Omeprazole
  • Aspirin
  • Citalopram Hbr
  • Ziprasidone
  • Ambien
When commencing Robaxin, the patient experienced the following unwanted symptoms/side effects:
  • Overdose
  • Suicidal Ideation
  • Refusal Of Treatment By Patient
The patient was hospitalized.Although all drugs are carefully tested before they are licensed for use, they carry side effect risks. Some side effects, such as overdose, may become evident only after a product is in use by the general population.

Back Pain, Impaired Work Ability
This is a report of a 51-year-old male patient (weight: NA) from US. The patient developed the following symptoms/conditions: back pain and was treated with Robaxin (dosage: NA) starting Jun 27, 2011. Concurrently used drugs:
  • Flexeril
Soon after that, the consumer experienced the following side effects:
  • Back Pain
  • Impaired Work Ability
This opens a possibility that Robaxin treatment could cause the above reactions, including back pain, and some male subjects may be more susceptible.


Swelling, Pruritus, Erythema, Burning Sensation
A 46-year-old male patient (weight: NA) from US with the following symptoms/conditions: NA started Robaxin treatment (dosage: 1 Tablet By Mouth 4x Per Day Po) on Oct 30, 2012. Soon after starting Robaxin treatment, the subject experienced various side effects, including:
  • Swelling
  • Pruritus
  • Erythema
  • Burning Sensation
Concurrently used drugs: NA. This finding indicates that some male patients could be more vulnerable to Robaxin.

Abdominal Distension, Cholecystectomy, Biliary Dyskinesia, Abdominal Pain
A 43-year-old female patient from UNITED STATES (weight: NA) experienced symptoms, such as: NA and was treated with Robaxin(dosage: NA). The treatment was initiated on Nov 30, 2007. After that a consumer reported the following side effect(s):
  • Abdominal Distension
  • Cholecystectomy
  • Biliary Dyskinesia
  • Abdominal Pain
Concurrently used drugs, which potentially could have contributed to side effect(s) or affected Robaxin efficacy:
  • Clonazepam (1 Mg, Unk)
  • Oxycodone Hcl And Acetaminophen (5-325 Mg)
  • Excedrin (migraine)
  • Yaz (Unk)
  • Methocarbamol (750 Mg, Unk)
  • Amoxicillin (875 Mg, Unk)
  • Penicillin Vk (500 Mg, Unk)
  • Hydrocodone Bitartrate And Acetaminophen (7.5-750 Mg)


Pain, Hyperkeratosis, Bone Disorder
In this report, Robaxin was administered for the following condition: NA.A female consumer from UNITED STATES (weight: NA) started Robaxin treatment (dosage: 750 Mg, As Needed) on NS.Sometime after starting the treatment, the patient complained of the following side effect(s):
  • Pain
  • Hyperkeratosis
  • Bone Disorder
A possible interaction with other drugs could have contributed to this reaction:
  • Gabapentin (600 Mg, Every 4 Hrs)
  • Morphine (Unk)
  • Celebrex (Unk)
  • Oxycodone (10/325mg, Two Tablet Four Times A Day)
  • Methadone (Unk)
Establishing a causal relationship between a specific drug and consumer's side effects is complex, but it is possible that in this report Robaxin treatment could be related to the listed above side effect(s).

Pain, Pulmonary Embolism, Chest Pain, Anhedonia, Dyspnoea, Anxiety, Injury
This is a report of the following Robaxin side effect(s):
  • Pain
  • Pulmonary Embolism
  • Chest Pain
  • Anhedonia
  • Dyspnoea
  • Anxiety
  • Injury
A 27-year-old female patient from UNITED STATES (weight: NA) presented with the following condition: muscle spasms and received a treatment with Robaxin (dosage: NA) starting: May 01, 2005.The following concurrently used drugs could have generated interactions:
  • Vicodin
  • Buspar (Unk)
  • Clonazepam (0.5 Mg, Hs As Needed)
  • Yaz (Unk)
The patient was hospitalized.This report suggests that a Robaxin treatment could be associated with the listed above side effect(s).

Rash
This Robaxin report was submitted by a 76-year-old female consumer from UNITED STATES (weight: NA). The patient was diagnosed with: NA and Robaxin was administered (dosage: Unk) starting: Nov 18, 2011. The consumer developed a set of symptoms:
  • Rash
Other drugs used simultaneously:
  • Multi-vitamins (Unk)
  • Aspirin (Unk)
  • Prolia (60 Mg, Q6mo)
  • Prilosec (Unk)
  • Calcium With Vitamin D (Unk)
  • Maxzide (Unk)
  • Vitamin D (Unk)
  • Acetaminophen (Unk)
Those unexpected symptoms could be linked to a Robaxin treatment, however establishing a potential drug-safety problem requires a more detailed clinical analysis.

Pain, Pulmonary Embolism, Dyspnoea, Injury, Emotional Distress, Non-cardiac Chest Pain
This is a report of a possible correlation between Robaxin use and the following symptoms/side effect(s):
  • Pain
  • Pulmonary Embolism
  • Dyspnoea
  • Injury
  • Emotional Distress
  • Non-cardiac Chest Pain
which could contribute to an assessment of Robaxin risk profile.A 27-year-old female consumer from UNITED STATES (weight: NA) was suffering from NA and was treated with Robaxin (dosage: NA) starting May 01, 2004.Other concurrent medications:
  • Yasmin (Unk)
  • Drospirenone And Ethinyl Estradiol (Unk)
  • Hydrocodone Bitartrate
  • Metoprolol Tartrate
  • Methocarbamol
  • Phenergan
  • Zithromax
  • Zantac
The patient was hospitalized.

Blood Pressure Increased, Burning Sensation, Headache
A female patient from UNITED STATES (weight: NA) presented with the following symptoms: muscle spasms,hypertension,fatigue,neuralgia,pain in extremity and after a treatment with Robaxin (dosage: NA) experienced the following side effect(s):
  • Blood Pressure Increased
  • Burning Sensation
  • Headache
The treatment was started on Jan 01, 2009. Robaxin was used in combination with the following drugs:
  • Lisinopril
  • Nuvigil (150 Milligram;)
  • Neurontin
  • Cymbalta
  • Aspirin
  • Cymbalta
  • Coreg
This report could alert potential Robaxin consumers.

White Blood Cell Count Decreased
In this report, a 47-year-old female patient from UNITED STATES (weight: NA) was affected by a possible Robaxin side effect.The patient was diagnosed with NA. After a treatment with Robaxin (dosage: NA, start date: NS), the patient experienced the following side effect(s):
  • White Blood Cell Count Decreased
The following simultaneously used drugs could have led to this reaction:
  • Gilenya (0.5 Mg, Qd, Oral)
  • Neurontin
  • Nexium /01479302/ (esomeprazole Sodium)
  • Solu-medrol
The findings here stress that side effects should be taken into consideration when evaluating a Robaxin treatment.

Burns Third Degree, Lip Swelling, Blister
This is a report of a 42-year-old female patient from UNITED STATES (weight: NA), who used Robaxin (dosage: NA) for a treatment of NA. After starting a treatment on Mar 01, 2012, the patient experienced the following side effect(s):
  • Burns Third Degree
  • Lip Swelling
  • Blister
The following drugs could possibly have interacted with the Robaxin treatment
  • Sucralfate
  • Campho-phenique Antiseptic Liquid (1 Df, Prn)
  • Penicillin
  • Valium
Taken together, these observations suggest that a Robaxin treatment could be related to side effect(s), such as Burns Third Degree, Lip Swelling, Blister.

Bone Disorder, Depression, Anxiety, Cataract, Appendicitis, Visual Field Defect, Hypothyroidism, Bone Erosion, Inflammation
This bone disorder side effect was reported by a physician from UNITED STATES. A female patient (weight:NA) experienced the following symptoms/conditions: NA. The patient was prescribed Robaxin (dosage: NA), which was started on Nov 01, 1998. Concurrently used drugs:
  • Aredia (60 Mg, Qmo)
  • Zometa (4 Mg, Qmo)
  • Multi-vitamins
  • Levothroid (1 Mg, Qd)
  • Prozac (20 Mg, Qd)
  • Bellamine S (Unk)
  • Diphenoxylate Hcl And Atropine Sulfate (1 Df, Bid)
When starting to take Robaxin the consumer reported the following symptoms:
  • Bone Disorder
  • Depression
  • Anxiety
  • Cataract
  • Appendicitis
  • Visual Field Defect
  • Hypothyroidism
  • Bone Erosion
  • Inflammation
These side effects may potentially be related to Robaxin.

No Adverse Event
This is a Robaxin side effect report of a 45-year-old female patient (weight:NA) from UNITED STATES, suffering from the following symptoms/conditions: NA, who was treated with Robaxin (dosage:NA, start time: NS), combined with:
  • Non Drowsy Sinus Congestion And Relief
  • Aleve (caplet)
  • Klonopin
  • Baclofen
  • Mobic
, and developed a serious reaction and a no adverse event side effect. The patient presented with:
  • No Adverse Event
which developed after the beginning of treatment. This side effect report can indicate a possible existence of increased vulnerability to Robaxin treatment in female patients suffering from NA, resulting in no adverse event.

Osteonecrosis Of Jaw, Bone Disorder, Foot Fracture, Exostosis, Gastrointestinal Haemorrhage, Cataract, Bone Erosion, Asthma, Oral Discomfort
This report suggests a potential Robaxin osteonecrosis of jaw side effect(s) that can have serious consequences. A female patient from UNITED STATES (weight:NA) was diagnosed with the following health condition(s): NA and used Robaxin (dosage: NA) starting Nov 01, 1998. Soon after starting Robaxin the patient began experiencing various side effects, including:
  • Osteonecrosis Of Jaw
  • Bone Disorder
  • Foot Fracture
  • Exostosis
  • Gastrointestinal Haemorrhage
  • Cataract
  • Bone Erosion
  • Asthma
  • Oral Discomfort
Drugs used concurrently:
  • Multi-vitamins
  • Femara (2.5 Mg, Qd)
  • Imodium
  • Bellamine S (Unk, Bid)
  • Arimidex
  • Prozac (20 Mg, Qd)
  • Zometa (4 Mg, Qmo)
  • Hydroxyzine
Although Robaxin demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as osteonecrosis of jaw, may still occur.

Insomnia
This insomnia problem was reported by a consumer or non-health professional from UNITED STATES. A 54-year-old male patient (weight: NA) was diagnosed with the following medical condition(s): NA.On Aug 07, 2011 a consumer started treatment with Robaxin (dosage: NA). The following drugs/medications were being taken at the same time:
  • Pegasys
  • Percodan (percodan)
  • Incivek (2250 Mg (750 Mg, 3 In 1 D), Oral)
  • Ribavirin
When commencing Robaxin, the patient experienced the following unwanted symptoms /side effects:
  • Insomnia
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.

Anorectal Discomfort, Rash
This is a Robaxin side effect report of a 54-year-old male patient (weight: NA) from UNITED STATES. The patient developed the following symptoms/conditions: NA and was treated with Robaxin (dosage: NA) starting Sep 02, 2011. Concurrently used drugs:
  • Incivek (2250 Mg (750 Mg, 3 In 1 D), Oral)
  • Ribavirin
  • Interferon (peginterferon Alfa-2a)
Soon after that, the consumer experienced the following of symptoms:
  • Anorectal Discomfort
  • Rash
This opens a possibility that Robaxin could cause anorectal discomfort and that some male patients may be more susceptible.

Fatigue, Injection Site Pain
A female patient (weight: NA) from UNITED STATES with the following symptoms: NA started Robaxin treatment (dosage: Prn) on Aug 11, 2011. Soon after starting Robaxin treatment, the consumer experienced several side effects, including:
  • Fatigue
  • Injection Site Pain
. Concurrently used drugs:
  • Gabapentin (Prn)
  • Vit D3
  • Demadex
  • Methotrexate (2.5 Mg A Week)
  • Klor-con M20 (Prn)
  • Humira
  • Folic Acid
  • Omeprizole
This finding indicates that some patients can be more vulnerable to developing Robaxin side effects, such as fatigue.

Gastrointestinal Pain, Diarrhoea
This gastrointestinal pain side effect was reported by a physician from UNITED STATES. A 47-year-old female patient (weight:NA) experienced the following symptoms/conditions: NA.The patient was prescribed Robaxin (dosage: NA), which was started on NS. Concurrently used drugs:
  • Tekturna (1 Df, Qd (300/25))
  • Kloapin
.When starting to take Robaxin the consumer reported symptoms, such as:
  • Gastrointestinal Pain
  • Diarrhoea
These side effects may potentially be related to Robaxin. The patient was hospitalized.

Gastrointestinal Pain, Diarrhoea
This is a report of a 47-year-old female patient (weight: NA) from UNITED STATES, suffering from the following symptoms/conditions: NA, who was treated with Robaxin (dosage: NA, start time: NS), combined with:
  • Tekturna (1 Df, Qd (300/25))
  • Kloapin
and developed a serious reaction and side effect(s). The consumer presented with:
  • Gastrointestinal Pain
  • Diarrhoea
which developed after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Robaxin treatment in female patients, resulting in gastrointestinal pain side effect. The patient was hospitalized.

Disturbance In Attention, Mental Impairment, Haemorrhagic Stroke
This report suggests a potential Robaxin Disturbance In Attention, Mental Impairment, Haemorrhagic Stroke side effect(s) that can have serious consequences. A male patient (weight: NA) from UNITED STATES was diagnosed with the following symptoms/conditions: NA and used Robaxin (dosage: NA) starting NS. Soon after starting Robaxin the patient began experiencing various side effects, including:
  • Disturbance In Attention
  • Mental Impairment
  • Haemorrhagic Stroke
Drugs used concurrently:
  • Cholestyramine
  • Analgesics
  • Altace
  • Tegretol
  • Tricor
  • Crestor
  • Prozac
  • Atenolol
The patient was hospitalized. Although Robaxin demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as disturbance in attention, may still occur.

Oropharyngeal Pain
This Oropharyngeal Pain problem was reported by a health professional from UNITED STATES. A 63-year-old female patient (weight: NA) was diagnosed with the following symptoms/conditions: NA. On Feb 23, 2011 this consumer started treatment with Robaxin (dosage: NA). The following drugs were being taken at the same time:
  • Tramadol Hcl
  • Belladonna Alkaloids (belladonna Alkaloids)
  • Aspirin
  • Cymbalta
  • Flomax
  • Vytorin
  • Ntm
  • Mobic
When commencing Robaxin, the patient experienced the following unwanted symptoms/side effects:
  • Oropharyngeal Pain
Although all drugs are carefully tested before they are licensed for use, they carry side effect risks. Some side effects, such as oropharyngeal pain, may become evident only after a product is in use by the general population.

Rash, Genital Ulceration, Mouth Ulceration, Stomatitis, Lichenoid Keratosis
This is a report of a 50-year-old female patient (weight: NA) from UNITED STATES. The patient developed the following symptoms/conditions: muscle spasms and was treated with Robaxin (dosage: 1-2 Tablets) starting Sep 01, 2009. Concurrently used drugs:
  • Zanaflex (1-2 Tablets)
Soon after that, the consumer experienced the following side effects:
  • Rash
  • Genital Ulceration
  • Mouth Ulceration
  • Stomatitis
  • Lichenoid Keratosis
This opens a possibility that Robaxin treatment could cause the above reactions, including rash, and some female subjects may be more susceptible.

Renal Failure Chronic, Chromaturia
A 39-year-old male patient (weight: NA) from SOUTH AFRICA with the following symptoms/conditions: NA started Robaxin treatment (dosage: 750 Mg, 8 Hourly) on NS. Soon after starting Robaxin treatment, the subject experienced various side effects, including:
  • Renal Failure Chronic
  • Chromaturia
Concurrently used drugs:
  • Vancomycin
  • Clindamycin (500 Mg, 6 Hourly)
  • Lyrica (25 Mg, 2x/day)
  • Tramadol (2 Tablets 6 Hourly)
  • Aspirin (1 Unk, 1x/day)
  • Imovane (7.5 Mg, 1x/day Nocte)
  • Citalopram Hydrobromide (10 Mg, 1x/day)
  • Aterax (25 Mg, 8 Hourly)
This finding indicates that some male patients could be more vulnerable to Robaxin.

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Keep Track of Side Effects

Note Your Observations

It is really important to keep of your symptoms, right from the time you start a new medicine. You can do it any way you prefer: in a notebook, in a computer file or using our online tool. You should also note down any other medicines you are taking at the same time, because there could be an interaction between these medicines.

Why Your Notes are Important

Your notes could be helpful in several ways:

  • You can use them to remind you of details that may alert your health care professional(s) to a problem
  • You will have a record to refer to in the future, in case you are ever prescribed the same medicine again

  • Log Form

    You can use the following log form to write down important information, like the date and time you experienced a side effect and your symptoms, how strong the symptoms were, and any other medicines you were using.

    Medicine Name and Dosage:
    Side Effects Scale Date & Time Other Medicine(s) or Treatment(s)
    Scale: 1 = very mild to 10 = very bad

    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.


    Discuss Robaxin Side Effects

    Did You Have a Robaxin Side Effect?

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    Yes, Moderate
    Yes, Minor
    No

    How Effective is Robaxin for You?

    Exceeded Expectations
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    Robaxin Safety Alerts, Active Ingredients, Usage Information

    NDC0091-7429
    TypeHUMAN PRESCRIPTION DRUG
    Proprietary NameRobaxin
    NameMethocarbamol
    Dosage FormTABLET, FILM COATED
    RouteORAL
    On market since20030115
    LabelerSchwarz Pharma Inc.
    Active Ingredient(s)METHOCARBAMOL
    Strength(s)500
    Unit(s)mg/1
    Pharma ClassCentrally-mediated Muscle Relaxation [PE],Muscle Relaxant [EPC]

    Robaxin Dosage, Warnings, Usage.

    Side Effects reported to FDA: 59

    Robaxin safety alerts: No

    Reported deaths: 1

    Reported hospitalizations: 25

    Latest Robaxin clinical trials