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Flagyl Hypersensitivity Side Effects

Flagyl Hypersensitivity Side Effect Reports


The following Flagyl 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 Flagyl or it might take time to develop.



Microcytic Anaemia, Thrombocytopenia, Lymphopenia, Hypersensitivity, Nausea, Vomiting, Abdominal Pain, Diarrhoea, Clostridium Test Positive

This Hypersensitivity side effect was reported by a health professional from FR. A 42-year-old female patient (weight:NA) experienced the following symptoms/conditions: infection. The patient was prescribed Flagyl (dosage: NA), which was started on Sep 13, 2013. Concurrently used drugs:
  • Bactrim (bactrim) (sulfamethoxazole, Trimethoprim)
When starting to take Flagyl the consumer reported the following symptoms:
  • Microcytic Anaemia
  • Thrombocytopenia
  • Lymphopenia
  • Hypersensitivity
  • Nausea
  • Vomiting
  • Abdominal Pain
  • Diarrhoea
  • Clostridium Test Positive
These side effects may potentially be related to Flagyl.
Hypersensitivity

This Hypersensitivity Flagyl side effect was reported by a consumer or non-health professional from US on May 31, 2013. A male , 83 years of age, weighting 99.01 lb, was diagnosed with and was treated with Flagyl. The patient presented the following health conditions:
  • Hypersensitivity
. Flagyl dosage: 250 Mg 3 X^s Daily Other. Additional drugs used at the same time: NA.
Hypersensitivity

This is a Flagyl side effect report of a 55-year-old patient (weight:NA) from GR, suffering from the following symptoms/conditions: tooth abscess, who was treated with Flagyl (dosage:NA, start time: NS), combined with: NA., and developed a serious reaction and a Hypersensitivity side effect. The patient presented with:
  • Hypersensitivity
which developed after the beginning of treatment. The patient was hospitalized. This side effect report can indicate a possible existence of increased vulnerability to Flagyl treatment in patients suffering from tooth abscess, resulting in Hypersensitivity.

Hypersensitivity

A 59-year-old female patient (weight: NA) from US with the following symptoms: NA started Flagyl treatment (dosage: NA) on NS. Soon after starting Flagyl treatment, the consumer experienced several side effects, including:
  • Hypersensitivity
. Concurrently used drugs:
  • Doxycycline Hyclate
  • Ciprofloxacin
  • Prinivil
  • Flexeril
This finding indicates that some patients can be more vulnerable to developing Flagyl side effects, such as Hypersensitivity.
Angioedema, Paraesthesia, Hypersensitivity

A patient from SE was prescribed and started Flagyl on Dec 03, 2012. Patient felt the following Flagyl side effects: angioedema, paraesthesia, hypersensitivity Additional patient health information: male , 55 years of age, The consumer reported the following symptoms: was diagnosed with and. Flagyl dosage: NA. Concurrently used drugs:
  • Ciprofloxacin
Dermatitis Contact, Hypersensitivity

This report suggests a potential Flagyl Hypersensitivity side effect(s) that can have serious consequences. A 45-year-old female patient from US (weight:NA) was diagnosed with the following health condition(s): NA and used Flagyl (dosage: Unk) starting NS. Soon after starting Flagyl the patient began experiencing various side effects, including:
  • Dermatitis Contact
  • Hypersensitivity
Drugs used concurrently:
  • Morphine Sulfate (Unk)
  • Cipro (Unk)
  • Codeine (Unk)
  • Albuterol (Unk)
  • Demerol (Unk)
  • Dilaudid (Unk)
  • Reglan (Unk)
  • Percocet (Unk)
Although Flagyl demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Hypersensitivity, may still occur.
Hypersensitivity

An adverse event was reported by a consumer or non-health professional on Feb 23, 2012 by a Female taking Flagyl (dosage: Unk) was diagnosed with and. Location: UNITED STATES , weighting 130.0 lb, patient began experiencing various side effects, including: Directly after treatment started, patient experienced the unwanted or unexpected Flagyl side effects: hypersensitivity. Additional medications/treatments:
Hypersensitivity

This Hypersensitivity problem was reported by a pharmacist from UNITED STATES. A 49-year-old female patient (weight: NA) was diagnosed with the following medical condition(s): NA.On NS a consumer started treatment with Flagyl (dosage: NA). The following drugs/medications were being taken at the same time:
  • Levaquin
  • Vit D
  • Zyrtec
  • Morphine (Various Prn Iv Recent)
  • Dilaudid (Recent)
  • Calcium + Vit D
  • Toradol (30 Q 6h Prn Iv Recent)
When commencing Flagyl, the patient experienced the following unwanted symptoms /side effects:
  • Hypersensitivity
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.
Hypersensitivity

This is a Flagyl side effect report of a female patient (weight: NA) from UNITED STATES. The patient developed the following symptoms/conditions: bacterial infection and was treated with Flagyl (dosage: NA) starting Mar 01, 1994. Concurrently used drugs: NA. Soon after that, the consumer experienced the following of symptoms:
  • Hypersensitivity
This opens a possibility that Flagyl could cause Hypersensitivity and that some female patients may be more susceptible.
Erythema, Fatigue, Headache, Hypersensitivity, Infection, Malaise, Oedema Peripheral, Pruritus, Quality Of Life Decreased

This Hypersensitivity side effect was reported by a consumer or non-health professional from UNITED KINGDOM on Oct 15, 2010. A female patient from UNITED KINGDOM , 79 years of age, weighting 108.0 lb, was diagnosed with and was treated with Flagyl. Directly after treatment started, patient experienced the unwanted or unexpected Flagyl side effects: erythema, fatigue, headache, hypersensitivity, infection, malaise, oedema peripheral, pruritus, quality of life decreased. Flagyl dosage: 400mg Bd Oral Use.
Associated medications used:
  • Corticosteroid Nos
  • Evorel
  • Lansoprazole
These side effects may potentially be related to Flagyl.
Abortion Spontaneous, Hypersensitivity, Urticaria

This Hypersensitivity side effect was reported by a consumer or non-health professional from UNITED STATES. A 25-year-old female patient (weight:NA) experienced the following symptoms/conditions: vaginitis bacterial. The patient was prescribed Flagyl (dosage: One Tablet 2 Times Day/7 Days Po), which was started on Sep 14, 2010. Concurrently used drugs: NA. When starting to take Flagyl the consumer reported the following symptoms:
  • Abortion Spontaneous
  • Hypersensitivity
  • Urticaria
These side effects may potentially be related to Flagyl.
Dizziness, Hyperhidrosis, Hypersensitivity, Visual Impairment

This Hypersensitivity Flagyl side effect was reported by a consumer or non-health professional from UNITED STATES on Aug 20, 2010. A Female , weighting 124.0 lb, was treated with Flagyl. The patient presented the following health conditions:
  • Dizziness
  • Hyperhidrosis
  • Hypersensitivity
  • Visual Impairment
. Flagyl dosage: Unk. Additional drugs used at the same time: NA.
Gardnerella Infection, Headache, Hypersensitivity, Joint Swelling, Neck Pain, Pruritus, Pyrexia, Rash Macular

This is a Flagyl side effect report of a 56-year-old female patient (weight:NA) from UNITED STATES, suffering from the following symptoms/conditions: gastrointestinal disorder,vaginal disorder, who was treated with Flagyl (dosage:500 Mg, 2x/day, Oral, start time: Apr 22, 2009), combined with: NA., and developed a serious reaction and a Hypersensitivity side effect. The patient presented with:
  • Gardnerella Infection
  • Headache
  • Hypersensitivity
  • Joint Swelling
  • Neck Pain
  • Pruritus
  • Pyrexia
  • Rash Macular
which developed after the beginning of treatment. This side effect report can indicate a possible existence of increased vulnerability to Flagyl treatment in female patients suffering from gastrointestinal disorder,vaginal disorder, resulting in Hypersensitivity.
Abscess Drainage, Hypersensitivity, Lip Swelling, Oedema Mouth

A 77-year-old female patient (weight: NA) from UNITED STATES with the following symptoms: NA started Flagyl treatment (dosage: NA) on NS. Soon after starting Flagyl treatment, the consumer experienced several side effects, including:
  • Abscess Drainage
  • Hypersensitivity
  • Lip Swelling
  • Oedema Mouth
. Concurrently used drugs: NA. This finding indicates that some patients can be more vulnerable to developing Flagyl side effects, such as Hypersensitivity.
Hypersensitivity, Oedema Peripheral, Rash

A female patient from UNITED STATES was prescribed and started Flagyl on Jul 10, 2009. After Flagyl was administered, patient encountered several Flagyl side effects: hypersensitivity, oedema peripheral, rash Additional patient health information: Female , weighting 130.1 lb, The consumer reported the following symptoms: was diagnosed with and. Flagyl dosage: NA. Concurrently used drugs: NA.
Hypersensitivity, Oedema Peripheral, Rash

This report suggests a potential Flagyl Hypersensitivity side effect(s) that can have serious consequences. A female patient from UNITED STATES (weight:NA) was diagnosed with the following health condition(s): gastrointestinal disorder and used Flagyl (dosage: NA) starting NS. Soon after starting Flagyl the patient began experiencing various side effects, including:
  • Hypersensitivity
  • Oedema Peripheral
  • Rash
Drugs used concurrently:NA. Although Flagyl demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Hypersensitivity, may still occur.
Dizziness, Headache, Hypersensitivity, Hypoaesthesia, Nausea

An adverse event was reported by a consumer or non-health professional on Jan 06, 2009 by a Female taking Flagyl (dosage: 500 Mgs. Twice A Day Po) was diagnosed with and. Location: UNITED STATES , 56 years of age, weighting 134.0 lb, patient began experiencing various side effects, including: Patient felt the following Flagyl side effects: dizziness, headache, hypersensitivity, hypoaesthesia, nausea. Additional medications/treatments:
Abdominal Discomfort, Asthenia, Balance Disorder, Chest Pain, Dizziness, Dyspnoea, Headache, Hyperhidrosis, Hypersensitivity

This Hypersensitivity problem was reported by a consumer or non-health professional from BRAZIL. A 22-year-old female patient (weight: NA) was diagnosed with the following medical condition(s): helminthic infection,giardiasis.On Mar 30, 2008 a consumer started treatment with Flagyl (dosage: Dose Quantity: 1). The following drugs/medications were being taken at the same time: NA. When commencing Flagyl, the patient experienced the following unwanted symptoms /side effects:
  • Abdominal Discomfort
  • Asthenia
  • Balance Disorder
  • Chest Pain
  • Dizziness
  • Dyspnoea
  • Headache
  • Hyperhidrosis
  • Hypersensitivity
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.
Abdominal Discomfort, Asthenia, Balance Disorder, Chest Pain, Dizziness, Dyspnoea, Headache, Hyperhidrosis, Hypersensitivity

This is a Flagyl side effect report of a 22-year-old female patient (weight: NA) from BRAZIL. The patient developed the following symptoms/conditions: NA and was treated with Flagyl (dosage: Dose Quantity: 1) starting Mar 30, 2008. Concurrently used drugs: NA. Soon after that, the consumer experienced the following of symptoms:
  • Abdominal Discomfort
  • Asthenia
  • Balance Disorder
  • Chest Pain
  • Dizziness
  • Dyspnoea
  • Headache
  • Hyperhidrosis
  • Hypersensitivity
This opens a possibility that Flagyl could cause Hypersensitivity and that some female patients may be more susceptible.
Chills, Hypersensitivity, Vomiting

This Hypersensitivity side effect was reported by a physician from PAKISTAN on Mar 24, 2008. A female patient from PAKISTAN , 22 years of age, was diagnosed with and was treated with Flagyl. Patient felt the following Flagyl side effects: chills, hypersensitivity, vomiting. Flagyl dosage: NA. These side effects may potentially be related to Flagyl.

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

Flagyl 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


Flagyl Hypersensitivity Reviews

Thu, 07 Jan 2010
The exact same thing happened to me after I was prescribed high dose Flagyl for 5 days for suspected diverticulitis (painful bloating, frothy yellow diarrhea, excessive foul gas, etc.) my doc also put me on a Clear Liquid Diet for 3 days before I had this episode... I called 911 from work because I felt chest tightness, shortness of breath, extremely lightheaded, and couldn't stand up or walk without almost passing out. I was confused also with difficulty concentrating and speaking. EMTs found my blood pressure to be 170/100 and my EKG showed a "Right Bundle Branch Block". I felt better after they gave me nitroglycerin and 4 baby aspirins. At the ER my EKGs and cardiac enzymes were normal. A CT scan of my abdomen failed to show any diverticulitis- they told me it looked completely normal. They also said I was dehydrated with a slightly low potassium level which was to be expected after 9 days of diarrhea. They thought my episode was caused by severe intestinal spasms probably due to side effects of the Flagyl and ibuprofen I had taken that morning on basically an empty stomach!
Wed, 12 May 2010
I am currenty on Flagyl for a pelvic infection in combination with vibramyacin. This morning I took the vibramyacin and then was planning on taking the Flagyl an hour later, but I spent the this morning vomiting. I called the dr. and was told by my dr. to continue taking both but with food..vibramyacin said to take on empty stomach, but I think the Flagyl was effecting me from the night before and not drinking enough water in combo with the vibramyacin .. and I think that's why I threw up I did not take the Flagyl before I threw up, however, after I was ok and spoke to the dr hours later , he told me to continue taking both but I took the Flagyl thinking it was the vibramyacin causing all the trouble, I had stomach burning all day and then just a half hour ago I took the Flagyl again and immedialtey had I realized soon after taking it again that it is the culprit causing a heartburn like burning senstation in my stomach and lower esophogas... I am calling my dr. tomorrow again to tell him that I can't deal with this. I tried to push through since I want to be fully rid of the pelvic infection but this is ridiculous. It feels like a horrible heartburn burning sensation.
Fri, 09 Jul 2010
I took Flagyl for 5 days each day feeling worse nausea an inner agitation and yawning for air difficulty breathing.....felt like it was attacking my intestines and the body was reacting and going into flight or fight. Very uncomfortable really unbearable had to stop it feltl like I was poisoning myself. Feel like my insides have been stripped I am left feeling anxious and fragile. Treatment way worse than what it was prescribed for.I think it caused anxiety nearly panic
Fri, 07 Jan 2011
My son was treated with Flagyl and vancomycin for cdiff. Today after 2 weeks off vanco he has mucus in his stool. Does he still have cdiff? What should we do
DISCLAIMER: ALL DATA PROVIDED AS-IS, refer to terms of use for additional information.

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Top Flagyl Side Effects

Diarrhoea (69)
Pyrexia (65)
Paraesthesia (59)
Vomiting (56)
Nausea (53)
Dizziness (51)
Hypoaesthesia (46)
Rash (44)
Pain (44)
Neuropathy Peripheral (43)
Abdominal Pain (43)
Confusional State (41)
Pruritus (37)
Dyspnoea (37)
Weight Decreased (36)
Urticaria (36)
Chills (34)
Thrombocytopenia (32)
Dysgeusia (31)
Headache (29)
Hypersensitivity (29)
Renal Failure Acute (27)
Anxiety (27)
Erythema (26)
Convulsion (26)
Oedema Peripheral (23)
Insomnia (22)
Neutropenia (22)
Asthenia (22)
Cholestasis (22)
Malaise (21)
Fatigue (21)
Anaemia (20)
Burning Sensation (19)
Fall (18)
Gait Disturbance (18)
Arthralgia (18)
Alanine Aminotransferase Increased (17)
Clostridium Difficile Colitis (17)
Abdominal Discomfort (17)
Depression (17)
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Muscle Spasms (17)
Hepatitis (16)
Hypotension (16)
Pancreatitis Acute (16)
Pain In Extremity (16)
Tremor (16)
Pancreatitis (15)
Polyneuropathy (15)

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