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Gas (56)
Pain (41)
Gut Pain (35)
Dizziness (26)
Upset Stomach (23)
Cramping (23)
Heart Burn (23)
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Metamucil Side Effects and Adverse Effects reported to US Food and Drug Administration (FDA)

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Showing 1-25 of 96 

Chest Pain, Vomiting, Choking, Dyspnoea, Blood Pressure Increased, Nausea, Retching (7759034-1)
on Sep 10, 2011 Female from UNITED STATES , 42 years of age, weighting 200.0 lb, was diagnosed with
  • bowel movement irregularity
and was treated with Metamucil-2. Directly after, patient experienced the unwanted or unexpected Metamucil side effects: chest pain, vomiting, choking, dyspnoea, blood pressure increased, nausea, retching. Metamucil-2 dosage: 1 Capsul, 1/day, Oral.
Associated medications used:
  • Morphine
  • Zoloft
Patient was hospitalized.

Dyspnoea, Vomiting, Asthenia, Diarrhoea, Convulsion (7726161-4)
Patient was taking Metamucil Sugar Free Smooth Texture, Pink Limonade Flavor (psyllum Hyd. Patient felt the following Metamucil side effects: dyspnoea, vomiting, asthenia, diarrhoea, convulsion on Aug 22, 2011 from UNITED STATES Additional patient health information: Female , 80 years of age, . Metamucil Sugar Free Smooth Texture, Pink Limonade Flavor (psyllum Hyd dosage: 1 Tsp, 1 Only, Oral.

Salivary Gland Neoplasm, Hypokinesia (7722411-9)
Adverse event was reported on Aug 22, 2011 by a Female taking Metamucil-2 (Dosage: 1 Glass Per Day) . Location: UNITED STATES , 60 years of age, After Metamucil was administered, patient encountered several Metamucil side effects: salivary gland neoplasm, hypokinesia.
Multiple concurrent drugs taken:
  • Pravastatin
  • Hyosicamine (As Needed)
  • Albuterol Sulfate Autohaler (2 Puffs As Needed)
  • Nexium
  • Cortisol (As Needed)
  • Omeprazole
  • Oxybutynine (1-3 Per Day)
  • Calmoseptine (As Needed)


Dyspnoea, Diarrhoea, Asthenia, Convulsion, Vomiting (7673737-9)
on Jul 22, 2011 Female from UNITED STATES , 80 years of age, was treated with Metamucil Sugar Free Smooth Texture, Pink Lemonade Flavor(psyllium Hyd. Directly after, patient experienced the unwanted or unexpected Metamucil side effects: dyspnoea, diarrhoea, asthenia, convulsion, vomiting. Metamucil Sugar Free Smooth Texture, Pink Lemonade Flavor(psyllium Hyd dosage: 1 Tsp, 1 Only, Oral.


Diarrhoea (7667148-X)
on Apr 26, 2011 Female from UNITED STATES , weighting 135.1 lb, was treated with Metamucil-2. Patient felt the following Metamucil side effects: diarrhoea. Metamucil-2 dosage: N/A.
Multiple prescriptions taken:
  • Plavix
  • Niaspan
  • Pravachol
  • Fish Oil


Flushing, Hot Flush, Skin Burning Sensation (7663342-2)
Patient was taking Metamucil-2. After Metamucil was administered, patient encountered several Metamucil side effects: flushing, hot flush, skin burning sensation on Aug 31, 2010 from UNITED STATES Additional patient health information: Female , weighting 217.2 lb, . Metamucil-2 dosage: N/A.
Multiple concurrent drugs taken:
  • Vitamin D
  • M.v.i.
  • Fish Oil
  • Niaspan
  • Glucosamine


Concussion, Fall, Pain In Extremity, Nausea, Malaise, Abdominal Distension, Hand Fracture, Rhinalgia, Facial Bones Fracture (7649155-6)
Adverse event was reported on Jul 20, 2011 by a Female taking Metamucil-2 (Dosage: 1 Tsp, 1 Only, Oral) . Location: UNITED STATES , 46 years of age, Directly after, patient experienced the unwanted or unexpected Metamucil side effects: concussion, fall, pain in extremity, nausea, malaise, abdominal distension, hand fracture, rhinalgia, facial bones fracture.

Lymphoma (7564931-6)
on Mar 25, 2011 Male from UNITED STATES , 51 years of age, was treated with Metamucil-2. Patient felt the following Metamucil side effects: lymphoma. Metamucil-2 dosage: N/A.
Multiple prescriptions taken:
  • Clozapine
  • Clonazepam
Patient was hospitalized.

Pneumonia Aspiration, Hypercalcaemia, Thrombosis, Hernia, Asthenia, Renal Failure Acute (7561107-3)
on Jun 14, 2011 Male from UNITED STATES , 78 years of age, was treated with Metamucil-2. After Metamucil was administered, patient encountered several Metamucil side effects: pneumonia aspiration, hypercalcaemia, thrombosis, hernia, asthenia, renal failure acute. Metamucil-2 dosage: N/A.
Multiple concurrent drugs taken:
  • Albuterol Sulfate Autohaler
  • Potassium Chloride
  • Revlimid (5 Milligram)
  • Revlimid (10 Milligram)
  • Docusate
Patient was hospitalized.

Abdominal Pain, Nausea, Diarrhoea, Blood Pressure Inadequately Controlled (7530765-1)
Patient was taking Metamucil-2. Directly after, patient experienced the unwanted or unexpected Metamucil side effects: abdominal pain, nausea, diarrhoea, blood pressure inadequately controlled on May 31, 2011 from UNITED STATES Additional patient health information: Female , 77 years of age, . Metamucil-2 dosage: N/A.
Associated medications used:
  • Prinivil
  • Cozaar
  • Caduet (1 Tab Daily)
  • Tekturna
  • Lopressor
  • Tekturna
  • Lipitor
  • Magnesium Oxide
Patient was hospitalized.

Pruritus, Abdominal Pain, Musculoskeletal Chest Pain, Gout, Pain In Extremity, Exercise Electrocardiogram Abnormal, Fatigue, Oedema (7430452-4)
Adverse event was reported on Aug 24, 2010 by a Female taking Metamucil-2 (Dosage: N/A) . Location: UNITED STATES , weighting 171.1 lb, Patient felt the following Metamucil side effects: pruritus, abdominal pain, musculoskeletal chest pain, gout, pain in extremity, exercise electrocardiogram abnormal, fatigue, oedema.
Multiple prescriptions taken:
  • Toprol-xl
  • Synthroid
  • Colchicine
  • Toprol-xl
  • Zantac
  • Toprol-xl
  • Metformin
  • Allopurinol


Pain, C-reactive Protein Increased, Tremor (7417446-X)
on Apr 12, 2011 Female from UNITED STATES , 80 years of age, weighting 145.0 lb, was treated with Metamucil-2. After Metamucil was administered, patient encountered several Metamucil side effects: pain, c-reactive protein increased, tremor. Metamucil-2 dosage: N/A.
Multiple concurrent drugs taken:
  • M.v.i.
  • Pravastatin
  • Reclast (5mg/100cc X1 Iv)
  • Lithium
  • Vit D
  • Lisinopril


Neurofibromatosis (7413686-4)
on Apr 04, 2011 Patient from UNITED STATES , child 2 years of age, was treated with Metamucil-2. Directly after, patient experienced the unwanted or unexpected Metamucil side effects: neurofibromatosis. Metamucil-2 dosage: 100 Mg, Unk.
Associated medications used:
  • Docusate (100 Mg, Unk)
  • Naproxen (Unk Unk, Qd)
  • Laxatives (Unk)
  • Acetaminophen (Unk)
  • Robitussin (Unk)
  • Etanercept (25 Mg, Qwk)
  • Tums (Unk Unk, Qwk)
  • Tylenol W/ Codeine (Unk Unk, Qd)


Constipation, Colonic Polyp, Frequent Bowel Movements (7377638-5)
Patient was taking Metamucil (psyllium Hydrophilic Mucilloid) (capsule) (psyllium Hydroph. Patient felt the following Metamucil side effects: constipation, colonic polyp, frequent bowel movements on Mar 09, 2011 from UNITED STATES Additional patient health information: Male , 86 years of age, weighting 184.0 lb, was diagnosed with
  • diarrhoea
and. Metamucil (psyllium Hydrophilic Mucilloid) (capsule) (psyllium Hydroph dosage: Per Oral. Patient was hospitalized.

Eye Pain, Influenza Like Illness, Nausea, Constipation, Decreased Appetite (7371068-8)
Adverse event was reported on Jan 20, 2011 by a Female taking Metamucil /00029101/ (plantago Ovata) (Dosage: N/A) . Location: UNITED STATES , 66 years of age, After Metamucil was administered, patient encountered several Metamucil side effects: eye pain, influenza like illness, nausea, constipation, decreased appetite.
Multiple concurrent drugs taken:
  • Colace (docusate Sodium)
  • Victoza (1.2 Mg, Qd, Subcutaneous, 0.6 Mg, Qd, Subcutaneous)


Fatigue, Vaginal Haemorrhage, Abdominal Discomfort, Cardiac Flutter (7312012-9)
on Jan 29, 2011 Female from UNITED STATES , 72 years of age, was treated with Metamucil-2. Directly after, patient experienced the unwanted or unexpected Metamucil side effects: fatigue, vaginal haemorrhage, abdominal discomfort, cardiac flutter. Metamucil-2 dosage: N/A.
Associated medications used:
  • Vitamin D
  • Sotalol Hydrochloride
  • Pradaxa (300 Mg)


Nausea, Blood Lactate Dehydrogenase Increased, Vomiting, Abdominal Tenderness, Ultrasound Abdomen Abnormal, Blood Glucose Increased, Gastrointestinal Sounds Abnormal, Incorrect Dose Administered (7297875-8)
on Jan 31, 2011 Male from UNITED STATES , 47 years of age, was diagnosed with
  • prophylaxis
  • bowel movement irregularity
and was treated with Metamucil-2. Patient felt the following Metamucil side effects: nausea, blood lactate dehydrogenase increased, vomiting, abdominal tenderness, ultrasound abdomen abnormal, blood glucose increased, gastrointestinal sounds abnormal, incorrect dose administered. Metamucil-2 dosage: Dose , Daily, Oral.

Anxiety, Delusion (7283449-1)
Patient was taking Metamucil /00029101/ (plantago Ovata). After Metamucil was administered, patient encountered several Metamucil side effects: anxiety, delusion on Dec 01, 2010 from UNITED STATES Additional patient health information: Female , 63 years of age, . Metamucil /00029101/ (plantago Ovata) dosage: N/A.
Multiple concurrent drugs taken:
  • Oxybutynin
  • Cranberry /01512301/ (vaccinium Macrocarpon)
  • Aspirin
  • Qvit
  • Ampyra (10 Mg, Bid)
  • Vytorin
  • Actomel
  • Senna /00142201/ (senna Alexandrina)
Patient was hospitalized.

Flushing, Muscle Spasms, Abdominal Pain Upper, Somnolence (7251656-X)
Adverse event was reported on Jan 27, 2011 by a Male taking Metamucil-2 (Dosage: N/A) was diagnosed with
  • constipation
  • prostatomegaly
and. Location: UNITED STATES , weighting 140.1 lb, Directly after, patient experienced the unwanted or unexpected Metamucil side effects: flushing, muscle spasms, abdominal pain upper, somnolence.
Associated medications used:
  • Hytrin
  • Simcor
  • Metoprolol
  • Simcor (500/20 Mg, 1 In 1 Day)
  • Simcor (500/20 Mg, 2 Tabs Daily)


Myocardial Infarction (7241215-7)
on Jan 14, 2011 Male from UNITED STATES , 74 years of age, weighting 210.5 lb, was treated with Metamucil-2. Patient felt the following Metamucil side effects: myocardial infarction. Metamucil-2 dosage: N/A.
Multiple prescriptions taken:
  • Lipitor
  • Insulin
  • Multi-vitamin
  • Atenolol
  • Avandia (4mg Per Day)
  • Aspirin
  • Lasix
Patient was hospitalized.

Coronary Artery Occlusion, Flushing, Somnolence, Abdominal Pain Upper, Muscle Spasms (7231549-4)
on Jan 13, 2011 Male from UNITED STATES , weighting 140.1 lb, was diagnosed with
  • constipation
  • prostatomegaly
  • hypertension
  • lipoprotein (a) increased
and was treated with Metamucil-2. After Metamucil was administered, patient encountered several Metamucil side effects: coronary artery occlusion, flushing, somnolence, abdominal pain upper, muscle spasms. Metamucil-2 dosage: N/A.
Multiple concurrent drugs taken:
  • Hytrin
  • Metoprolol
  • Simcor (500/20 Mg, 1 In 1 Day)
  • Simcor
Patient was hospitalized.

Intestinal Obstruction (7210292-1)
Patient was taking Metamucil-2. Directly after, patient experienced the unwanted or unexpected Metamucil side effects: intestinal obstruction on Dec 15, 2010 from UNITED STATES Additional patient health information: Female , 64 years of age, . Metamucil-2 dosage: Oral.

Choking, Dysphagia, Foreign Body, Oesophageal Obstruction, Regurgitation (7146066-X)
Adverse event was reported on Nov 08, 2010 by a Male taking Metamucil-2 (Dosage: 2 Wafer, 1 /day, Oral) . Location: UNITED STATES , 64 years of age, Patient felt the following Metamucil side effects: choking, dysphagia, foreign body, oesophageal obstruction, regurgitation.
Multiple prescriptions taken:
  • Thick-it Powder


Product Quality Issue (7132731-7)
on Nov 29, 2010 Male from UNITED STATES , weighting 235.0 lb, was diagnosed with
  • cardiac disorder
and was treated with Metamucil-2. After Metamucil was administered, patient encountered several Metamucil side effects: product quality issue. Metamucil-2 dosage: 1 Heaping Tablespoon Once Per Day.

Choking, Dysphagia, Foreign Body, Oesophageal Obstruction, Regurgitation (6885345-8)
on Jul 12, 2010 Male from UNITED STATES , 64 years of age, was treated with Metamucil-2. Directly after, patient experienced the unwanted or unexpected Metamucil side effects: choking, dysphagia, foreign body, oesophageal obstruction, regurgitation. Metamucil-2 dosage: 2 Wafer, 1/day, Oral.
Associated medications used:
  • Thick-it Powder


Showing 1-25 of 96 

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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.

Metamucil Information

Alternative METAMUCIL Names:PSYLLIUM

Active Ingredient: PSYLLIUM

More About Metamucil

Side Effects reported to FDA: 96. View Metamucil Adverse Reports

Metamucil safety alerts: No

Reported deaths: 7

Reported hospitalizations: 36

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