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I have rash on my back, arms, legs for almost a y...Keep Reading

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I am getting so thirsty. Can Benefiber cause severe thirst? My ...Keep Reading

I am getting so thirsty. Can Benefiber cause severe thirst? My ...Keep Reading

How can you check off that you experinced death from Benefiber??!! ...Keep Reading

significant gas and a continuing itchy rach all over my back...Keep Reading

The first 2 weeks on BenefiberI took only 1 dose per day instead of ...Keep Reading

Have been havibg headaches. Could this be the cause?...Keep Reading

My daughter suffered with severe constipation from age 3 and was misdiagnosed with all ...Keep Reading

That's because you're not drinking enough water. Increasing your intake of fiber should ...Keep Reading

My mouth seemed to get dryer then it was after taking benefiber....Keep Reading

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side effects patient, weighting 150.0 lb, was diagnosed with nutritional support and took Benefiber 1 Stick Pack, Qd Patient was hospitalized.. View more Serious Adverse Events reported to FDA.

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Click Check Boxes Below to Submit a Side Effect or Use a Link for Additional Health Information
Gas (87)
Lower Abdominal Pain (42)
Constipation (36)
Itching (31)
Diarrhea (27)
Hard Stool Requiring Medical Help (15)
Constipation, Hard Stool Requiring Medical Help (12)
>>View All User Submitted Benefiber Side Effects

List of Benefiber Adverse Effects reported to US Food and Drug Administration (FDA)

  Showing 76-100 of 297 

Faeces Discoloured, Faecal Incontinence, Gastrointestinal Tract Irritation, Anorectal Discomfort, Diverticulitis Intestinal Haemorrhagic, Abdominal Pain Upper, Flatulence (7581246-0)
on Jun 20, 2011 Female patient from UNITED STATES , weighting 150.0 lb, was diagnosed with
  • nutritional support
and was treated with Benefiber W/ Wheat Dextrin. Patient experienced the following unwanted or unexpected effects: faeces discoloured, faecal incontinence, gastrointestinal tract irritation, anorectal discomfort, diverticulitis intestinal haemorrhagic, abdominal pain upper, flatulence. Benefiber W/ Wheat Dextrin dosage: 1 Stick Pack, Qd. Patient was hospitalized.

Neuralgia, Intervertebral Disc Protrusion, Intervertebral Disc Operation, Off Label Use (7561803-8)
Patient was taking Benefiber W/ Wheat Dextrin. Patient had the following side effects: neuralgia, intervertebral disc protrusion, intervertebral disc operation, off label use on Jun 16, 2011 from UNITED STATES Additional patient health information: Female patient , 46 years of age, weighting 160.0 lb, was diagnosed with
  • diarrhoea
  • irritable bowel syndrome
  • bowel movement irregularity
and. Benefiber W/ Wheat Dextrin dosage: N/A.

Colonic Obstruction (7550057-4)
Adverse event was reported on Jun 13, 2011 by a Female patient taking Benefiber W/ Wheat Dextrin (Dosage: 2 Tsp, Tid) was diagnosed with
  • medical diet
and. Location: UNITED STATES , child 10 years of age, weighting 145.0 lb, After Benefiber was administered, patient had the following side effects: colonic obstruction.
Patient also using the following medications:
  • Colace (1 Df, Tid)


Cystitis, Abdominal Pain Upper, Ear Infection, Therapeutic Response Unexpected, Diarrhoea, Musculoskeletal Disorder, Incorrect Dose Administered (7523518-1)
on May 24, 2011 Female patient from UNITED STATES , 61 years of age, weighting 137.0 lb, was diagnosed with
  • bowel movement irregularity
and was treated with Benefiber W/ Wheat Dextrin. Patient experienced the following unwanted or unexpected effects: cystitis, abdominal pain upper, ear infection, therapeutic response unexpected, diarrhoea, musculoskeletal disorder, incorrect dose administered. Benefiber W/ Wheat Dextrin dosage: 9 Df, Qhs.
Patient also using the following medications:
  • Thyroid Tab (Unk, Unk)
  • Fish Oil (Unk, Unk)
  • Multi-vitamins (Unk, Unk)
  • Calcium Carbonate (Unk, Unk)



Flatulence, Urinary Tract Infection, Overdose, Blood Potassium Decreased, Diarrhoea, Constipation (7523514-4)
on May 27, 2011 Female patient from UNITED STATES , 67 years of age, was treated with Benefiber W/ Wheat Dextrin. Patient had the following side effects: flatulence, urinary tract infection, overdose, blood potassium decreased, diarrhoea, constipation. Benefiber W/ Wheat Dextrin dosage: 1 Tablespoon 4 Times A Day. Patient was hospitalized.

Gallbladder Operation, Abnormal Faeces (7481987-X)
Patient was taking Benefiber W/ Wheat Dextrin. After Benefiber was administered, patient had the following side effects: gallbladder operation, abnormal faeces on May 06, 2011 from UNITED STATES Additional patient health information: Female patient , 82 years of age, was diagnosed with
  • medical diet
and. Benefiber W/ Wheat Dextrin dosage: 1 Tsp, Qd.

Cryptorchism (7473919-5)
Adverse event was reported on May 05, 2011 by a Male patient taking Benefiber W/ Wheat Dextrin (Dosage: Unk, Unk) . Location: AUSTRALIA , weighting 7.70 lb, Patient experienced the following unwanted or unexpected effects: cryptorchism.

Cough, Bronchitis, Rectal Haemorrhage, Blood Pressure Decreased, Nasal Turbinate Hypertrophy, Nasal Septum Disorder, Chest Discomfort, Rhinitis Allergic, Vaginal Haemorrhage (7468942-0)
on Apr 18, 2011 Female patient from UNITED STATES , 26 years of age, weighting 325.0 lb, was treated with Benefiber. Patient had the following side effects: cough, bronchitis, rectal haemorrhage, blood pressure decreased, nasal turbinate hypertrophy, nasal septum disorder, chest discomfort, rhinitis allergic, vaginal haemorrhage. Benefiber dosage: N/A.
Patient also using the following medications:
  • Depo-provera
  • Clotrimazole
  • Diflucan
  • Premarin
  • Nuvaring (1 Df; Qm; Vag)
Patient was hospitalized.

Hip Surgery, Lower Limb Fracture, Walking Aid User, Infection, Limb Operation (7468342-3)
on May 03, 2011 Female patient from UNITED STATES , 83 years of age, weighting 145.0 lb, was diagnosed with
  • medical diet
and was treated with Benefiber W/ Wheat Dextrin. After Benefiber was administered, patient had the following side effects: hip surgery, lower limb fracture, walking aid user, infection, limb operation. Benefiber W/ Wheat Dextrin dosage: 3 Df, Tid. Patient was hospitalized.

Off Label Use, Hypertension (7453377-7)
Patient was taking Benefiber Sugar Free. Patient experienced the following unwanted or unexpected effects: off label use, hypertension on Apr 28, 2011 from UNITED STATES Additional patient health information: Female patient , 69 years of age, was diagnosed with
  • irritable bowel syndrome
and. Benefiber Sugar Free dosage: 1 Df, Tid.

Rash, Urticaria, Pruritus (7433251-2)
Adverse event was reported on Apr 19, 2011 by a Male patient taking Benefiber W/ Wheat Dextrin (Dosage: Unk, Unk) was diagnosed with
  • nutritional support
and. Location: UNITED STATES , 36 years of age, Patient had the following side effects: rash, urticaria, pruritus.

Diarrhoea, Hypertension (7426622-1)
on Apr 11, 2011 Female patient from UNITED STATES , 75 years of age, weighting 180.0 lb, was diagnosed with
  • medical diet
and was treated with Benefiber Plus Calcium With Wheat Dextrin. After Benefiber was administered, patient had the following side effects: diarrhoea, hypertension. Benefiber Plus Calcium With Wheat Dextrin dosage: 2 Tsp, Qd.
Patient also using the following medications:
  • Pravachol
  • Metoprolol
  • Metformin
  • Aspirin
  • Plavix
  • Neurontin


Off Label Use, Hip Fracture, Blood Glucose Increased (7418789-6)
on Apr 11, 2011 Female patient from UNITED STATES , 77 years of age, was diagnosed with
  • abdominal pain
  • hypertension
  • type 2 diabetes mellitus
  • heart rate
and was treated with Benefiber W/ Wheat Dextrin. Patient experienced the following unwanted or unexpected effects: off label use, hip fracture, blood glucose increased. Benefiber W/ Wheat Dextrin dosage: 1 Tsp, Qd.
Patient also using the following medications:
  • Lisinopril (20 Mg, Qd)
  • Januvia (50 Mg, Qd)
  • Atenolol (50 Mg, Qd)
  • Tikosyn (125 Ug, Bid)
  • Premarin (.625 Ug, Qd)
  • Lisinopril
  • Warfarin (4 Mg, Qd)


Intestinal Obstruction, Therapeutic Response Unexpected, Overdose (7321742-4)
Patient was taking Benefiber W/ Wheat Dextrin. Patient had the following side effects: intestinal obstruction, therapeutic response unexpected, overdose on Feb 22, 2011 from UNITED STATES Additional patient health information: Female patient , 73 years of age, weighting 225.8 lb, . Benefiber W/ Wheat Dextrin dosage: 5-6 Tablespoon A Day. Patient was hospitalized.

Dysuria, Off Label Use, Anuria, Urine Output Decreased (7316118-X)
Adverse event was reported on Feb 17, 2011 by a Male patient taking Benefiber Fiber Supp Vit B + Folic Acid (Dosage: 1 Tsp, Qd) was diagnosed with
  • faeces hard
and. Location: UNITED STATES , 59 years of age, After Benefiber was administered, patient had the following side effects: dysuria, off label use, anuria, urine output decreased.

Diarrhoea, Muscle Spasms, Arrhythmia, Haematochezia (7312363-8)
on Jan 30, 2011 Female patient from UNITED STATES , 56 years of age, was diagnosed with
  • irritable bowel syndrome
  • muscle spasms
  • atrial fibrillation
and was treated with Benefiber. Patient experienced the following unwanted or unexpected effects: diarrhoea, muscle spasms, arrhythmia, haematochezia. Benefiber dosage: N/A.
Patient also using the following medications:
  • Baclofen
  • Pradaxa (300 Mg)
  • Aspirin (325 Mg)
  • Premarin
  • Simvastatin (20 Mg)
  • Kcl Er (10 Meq)
  • Hydrocodone Bitartrate
  • Sotalol Hydrochloride


Depressed Level Of Consciousness, Confusional State, Asthenia, Dizziness, Aura, Lethargy, Somnolence, Off Label Use (7308987-4)
on Feb 16, 2011 Male patient from UNITED STATES , 52 years of age, weighting 210.0 lb, was treated with Benefiber W/ Wheat Dextrin. Patient had the following side effects: depressed level of consciousness, confusional state, asthenia, dizziness, aura, lethargy, somnolence, off label use. Benefiber W/ Wheat Dextrin dosage: 2 Tsp, Bid.
Patient also using the following medications:
  • Citalopram (Unk, Unk)
  • Phenobarbital Tab (Unk, Unk)
  • Phenytoin (Unk, Unk (^took More To Prevent Seizure^))
  • Phenytoin (Unk, Unk)
  • Zolam (Unk, Unk)
  • Phenytoin (Unk, Unk (^took More To Prevent Seizure^))


Vomiting (7293937-X)
Patient was taking Benefiber Stick Packs. After Benefiber was administered, patient had the following side effects: vomiting on Feb 07, 2011 from UNITED STATES Additional patient health information: Female patient , 80 years of age, weighting 154.0 lb, was diagnosed with
  • mineral supplementation
and. Benefiber Stick Packs dosage: 1 Packet Once.

Vomiting (7281248-8)
Adverse event was reported on Feb 02, 2011 by a Female patient taking Benefiber Stick Packs (Dosage: 1 Packet Once) was diagnosed with
  • mineral supplementation
and. Location: UNITED STATES , 80 years of age, weighting 154.0 lb, Patient experienced the following unwanted or unexpected effects: vomiting.

Diverticulum, Incorrect Dose Administered, Diarrhoea, Hypertension, Coronary Arterial Stent Insertion, Off Label Use (7274690-2)
on Jan 25, 2011 Male patient from UNITED STATES , 64 years of age, was treated with Benefiber W/ Wheat Dextrin. Patient had the following side effects: diverticulum, incorrect dose administered, diarrhoea, hypertension, coronary arterial stent insertion, off label use. Benefiber W/ Wheat Dextrin dosage: 1 Heaping Tbsp, Once Or Twice A Week.
Patient also using the following medications:
  • Lipitor
  • Fish Oil
Patient was hospitalized.

Abdominal Distension, Cardiac Operation, Flatulence, Incorrect Dose Administered, Off Label Use (7180453-9)
on Dec 13, 2010 Female patient from UNITED STATES , 66 years of age, was diagnosed with
  • bowel movement irregularity
  • hypertension
and was treated with Benefiber W/ Wheat Dextrin (nch). After Benefiber was administered, patient had the following side effects: abdominal distension, cardiac operation, flatulence, incorrect dose administered, off label use. Benefiber W/ Wheat Dextrin (nch) dosage: 3 Tsp (1 Tablespoon), Qd.
Patient also using the following medications:
  • Toprol-xl (Unk, Unk)
  • Amiodarone Hcl (Unk, Unk)
  • Coumadin (Unk, Unk)


Abdominal Distension, Cardiac Operation, Flatulence, Incorrect Dose Administered (7170350-7)
Patient was taking Benefiber W/ Wheat Dextrin (nch). Patient experienced the following unwanted or unexpected effects: abdominal distension, cardiac operation, flatulence, incorrect dose administered on Dec 13, 2010 from UNITED STATES Additional patient health information: Female patient , 66 years of age, was diagnosed with
  • bowel movement irregularity
  • hypertension
and. Benefiber W/ Wheat Dextrin (nch) dosage: 3 Tsp (1 Tablespoon), Qd.
Patient also using the following medications:
  • Toprol-xl (Unk, Unk)
  • Amiodarone (Unk, Unk)
  • Coumadin (Unk, Unk)


Diverticulum, Dyspepsia, Gastrointestinal Infection (7055898-8)
Adverse event was reported on Oct 15, 2010 by a Male patient taking Benefiber W/ Wheat Dextrin (nch) (Dosage: 2 Tsp, Qd) . Location: UNITED STATES , 65 years of age, weighting 231.0 lb, Patient had the following side effects: diverticulum, dyspepsia, gastrointestinal infection.

Overdose (7036028-5)
on Aug 03, 2010 Female patient from UNITED STATES , 53 years of age, weighting 160.0 lb, was treated with Benefiber W/ Wheat Dextrin (nch). After Benefiber was administered, patient had the following side effects: overdose. Benefiber W/ Wheat Dextrin (nch) dosage: Unk, Unk.

Blood Pressure Increased, Dizziness, Headache, Off Label Use, Overdose (7002812-7)
on Sep 15, 2010 Male patient from UNITED STATES , 75 years of age, was diagnosed with
  • constipation
and was treated with Benefiber W/ Wheat Dextrin (nch). Patient experienced the following unwanted or unexpected effects: blood pressure increased, dizziness, headache, off label use, overdose. Benefiber W/ Wheat Dextrin (nch) dosage: 6 Tsp, Bid.
Patient also using the following medications:
  • Coumadin
  • Amiodarone Hcl
  • Metformin
  • Enalapril
  • Flomax
  • Simvastatin
Patient was hospitalized.

  Showing 76-100 of 297 

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Benefiber Information

More About Benefiber

Side Effects reported to FDA: 297. View FDA Adverse Reports

Benefiber safety alerts: No

Reported deaths: 2

Reported hospitalizations: 16

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Benefiber Adverse Reactions

Off Label Use ( 66 Reports)

Diarrhoea ( 33 Reports)

Overdose ( 32 Reports)

Incorrect Dose Administered ( 28 Reports)

Constipation ( 24 Reports)

Flatulence ( 24 Reports)

Abdominal Pain Upper ( 22 Reports)

Nausea ( 21 Reports)

Therapeutic Response Unexpected ( 21 Reports)

Diverticulitis ( 18 Reports)

Weight Decreased ( 17 Reports)

Abdominal Distension ( 16 Reports)

Vomiting ( 15 Reports)

Blood Glucose Increased ( 13 Reports)

Condition Aggravated ( 12 Reports)

Dizziness ( 12 Reports)

Malaise ( 12 Reports)

Abdominal Pain ( 11 Reports)

Dehydration ( 11 Reports)

Headache ( 11 Reports)

Hypertension ( 11 Reports)

Frequent Bowel Movements ( 10 Reports)

Haematochezia ( 10 Reports)

Pruritus ( 9 Reports)

Abdominal Discomfort ( 8 Reports)

Blood Pressure Increased ( 8 Reports)

Cerebrovascular Accident ( 8 Reports)

Decreased Appetite ( 8 Reports)

Diverticulum ( 8 Reports)

Feeling Abnormal ( 8 Reports)

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