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Cephalexin Diarrhoea Side Effects

Cephalexin Diarrhoea Side Effect Reports


The following Cephalexin Diarrhoea side effect reports were submitted by healthcare professionals and consumers.

This information will help you understand how side effects, such as Diarrhoea, can occur, and what you can do about them.

A side effect could appear soon after you start Cephalexin or it might take time to develop.



Diarrhoea, Abdominal Pain Upper, Flatulence, Abdominal Distension, Pyrexia

This Diarrhoea side effect was reported by a consumer or non-health professional from US. A 29-year-old female patient (weight:NA) experienced the following symptoms/conditions: urinary tract infection. The patient was prescribed Cephalexin (dosage: 20 Twice Daily, Taken By Mouth), which was started on Nov 13, 2013. Concurrently used drugs: NA. When starting to take Cephalexin the consumer reported the following symptoms:
  • Diarrhoea
  • Abdominal Pain Upper
  • Flatulence
  • Abdominal Distension
  • Pyrexia
These side effects may potentially be related to Cephalexin.
Diarrhoea, Weight Decreased, Vomiting

This Diarrhoea Cephalexin side effect was reported by a consumer or non-health professional from US on Aug 16, 2013. A Female , 43 years of age, weighting 140.0 lb, was diagnosed with and was treated with Cephalexin. The patient presented the following health conditions:
  • Diarrhoea
  • Weight Decreased
  • Vomiting
. Cephalexin dosage: 250 Mg, Tid + Oral. Additional drugs used at the same time:
  • Metronidazole
Gait Disturbance, Altered Visual Depth Perception, Erectile Dysfunction, Depression, Fungal Infection, Pruritus, Dyspnoea, Diarrhoea, Dizziness

This is a Cephalexin Capsules 500 Mg side effect report of a 31-year-old patient (weight:NA) from US, suffering from the following symptoms/conditions: localised infection, who was treated with Cephalexin Capsules 500 Mg (dosage:NA, start time: Jul 01, 2013), combined with: NA., and developed a serious reaction and a Diarrhoea side effect. The patient presented with:
  • Gait Disturbance
  • Altered Visual Depth Perception
  • Erectile Dysfunction
  • Depression
  • Fungal Infection
  • Pruritus
  • Dyspnoea
  • Diarrhoea
  • Dizziness
which developed after the beginning of treatment. This side effect report can indicate a possible existence of increased vulnerability to Cephalexin Capsules 500 Mg treatment in patients suffering from localised infection, resulting in Diarrhoea.

Diarrhoea, Abdominal Pain, Clostridium Difficile Infection

A 97-year-old patient (weight: NA) from US with the following symptoms: wound infection started Cephalexin treatment (dosage: 500 Mg Qid Po) on May 14, 2013. Soon after starting Cephalexin treatment, the consumer experienced several side effects, including:
  • Diarrhoea
  • Abdominal Pain
  • Clostridium Difficile Infection
. Concurrently used drugs: NA.The patient was hospitalized. This finding indicates that some patients can be more vulnerable to developing Cephalexin side effects, such as Diarrhoea.
Diarrhoea, Haematochezia

A female patient from UNITED STATES was prescribed and started Cephalexin on Jun 25, 2012. Patient felt the following Cephalexin side effects: diarrhoea, haematochezia Additional patient health information: Female , 53 years of age, weighting 199.7 lb, The consumer reported the following symptoms: was diagnosed with and. Cephalexin dosage: 500 Mg Qid Po. Concurrently used drugs: NA. The patient was hospitalized.
Diarrhoea, Cardiac Failure Congestive, Malaise

This report suggests a potential Cephalexin Diarrhoea side effect(s) that can have serious consequences. A 70-year-old patient from UNITED STATES (weight:NA) was diagnosed with the following health condition(s): prophylaxis and used Cephalexin (dosage: 500 Mg Tid Po) starting Feb 15, 2012. Soon after starting Cephalexin the patient began experiencing various side effects, including:
  • Diarrhoea
  • Cardiac Failure Congestive
  • Malaise
Drugs used concurrently:NA. The patient was hospitalized. Although Cephalexin demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Diarrhoea, may still occur.
Nausea, Vomiting, Diarrhoea

An adverse event was reported by a health professional on May 11, 2012 by a male taking Cephalexin (dosage: NA) . Location: UNITED STATES , 58 years of age, patient began experiencing various side effects, including: Directly after treatment started, patient experienced the unwanted or unexpected Cephalexin side effects: nausea, vomiting, diarrhoea. Additional medications/treatments: The patient was hospitalized.
Headache, Skin Lesion, Feeling Hot, Diarrhoea, Myalgia, Chills, Skin Discolouration

This Diarrhoea problem was reported by a consumer or non-health professional from UNITED STATES. A 78-year-old female patient (weight: NA) was diagnosed with the following medical condition(s): localised infection.On Apr 06, 2012 a consumer started treatment with Cephalexin (dosage: 500mg 4 Per Day Capsule). The following drugs/medications were being taken at the same time: NA. When commencing Cephalexin, the patient experienced the following unwanted symptoms /side effects:
  • Headache
  • Skin Lesion
  • Feeling Hot
  • Diarrhoea
  • Myalgia
  • Chills
  • Skin Discolouration
Although all drugs are carefully tested before they are licensed for use, they carry potential side effect risks. Some side effects, such as Diarrhoea, may become evident only after a product is in use by the general population.
Diarrhoea, Nausea, Vomiting

This is a Cephalexin side effect report of a 58-year-old patient (weight: NA) from UNITED STATES. The patient developed the following symptoms/conditions: NA and was treated with Cephalexin (dosage: NA) starting NS. Concurrently used drugs: NA. Soon after that, the consumer experienced the following of symptoms:
  • Diarrhoea
  • Nausea
  • Vomiting
The patient was hospitalized. This opens a possibility that Cephalexin could cause Diarrhoea and that some patients may be more susceptible.
Diarrhoea, Dehydration, Abdominal Pain, Weight Decreased, Back Pain, Muscle Spasms, Vomiting

This Diarrhoea side effect was reported by a consumer or non-health professional from UNITED STATES on Apr 02, 2012. A patient from UNITED STATES , 47 years of age, weighting 135.0 lb, was diagnosed with and was treated with Cephalexin. Directly after treatment started, patient experienced the unwanted or unexpected Cephalexin side effects: diarrhoea, dehydration, abdominal pain, weight decreased, back pain, muscle spasms, vomiting. Cephalexin dosage: NA. The patient was hospitalized. These side effects may potentially be related to Cephalexin.
Crohn's Disease, Cheilitis, Ingrowing Nail, Stress, Diarrhoea, Upper Respiratory Tract Infection, Colitis Ulcerative, Depression, Epistaxis

This Diarrhoea side effect was reported by a consumer or non-health professional from UNITED STATES. A patient (weight:NA) experienced the following symptoms/conditions: bronchitis,acne. The patient was prescribed Cephalexin (dosage: NA), which was started on Jul 01, 2003. Concurrently used drugs:
  • Accutane
When starting to take Cephalexin the consumer reported the following symptoms:
  • Crohn's Disease
  • Cheilitis
  • Ingrowing Nail
  • Stress
  • Diarrhoea
  • Upper Respiratory Tract Infection
  • Colitis Ulcerative
  • Depression
  • Epistaxis
These side effects may potentially be related to Cephalexin.
Nausea, Vomiting, Diarrhoea

This Diarrhoea Cephalexin side effect was reported by a health professional from UNITED STATES on Jan 23, 2012. A male , 58 years of age, was treated with Cephalexin. The patient presented the following health conditions:
  • Nausea
  • Vomiting
  • Diarrhoea
. Cephalexin dosage: NA. Additional drugs used at the same time: NA. The patient was hospitalized.
Dizziness, Diarrhoea, Pruritus, Fall, Dysstasia, Vomiting, Balance Disorder, Scab, Cold Sweat

This is a Cephalexin side effect report of a 63-year-old female patient (weight:NA) from UNITED STATES, suffering from the following symptoms/conditions: ear infection bacterial, who was treated with Cephalexin (dosage:NA, start time: Nov 04, 2011), combined with: NA., and developed a serious reaction and a Diarrhoea side effect. The patient presented with:
  • Dizziness
  • Diarrhoea
  • Pruritus
  • Fall
  • Dysstasia
  • Vomiting
  • Balance Disorder
  • Scab
  • Cold Sweat
which developed after the beginning of treatment. This side effect report can indicate a possible existence of increased vulnerability to Cephalexin treatment in female patients suffering from ear infection bacterial, resulting in Diarrhoea.
Abdominal Pain, Diarrhoea, Body Temperature Increased, Muscle Spasms, Nausea, Mucous Stools, Haematochezia, Clostridium Test Positive

A 5-year-old female patient (weight: NA) from UNITED STATES with the following symptoms: infected bites,arthropod bite started Cephalexin treatment (dosage: 5.5ml Tid Po) on May 09, 2011. Soon after starting Cephalexin treatment, the consumer experienced several side effects, including:
  • Abdominal Pain
  • Diarrhoea
  • Body Temperature Increased
  • Muscle Spasms
  • Nausea
  • Mucous Stools
  • Haematochezia
  • Clostridium Test Positive
. Concurrently used drugs: NA. This finding indicates that some patients can be more vulnerable to developing Cephalexin side effects, such as Diarrhoea.
Abdominal Pain Upper, Cow's Milk Intolerance, Fat Intolerance, Vomiting, Pelvic Pain, Diarrhoea, Epigastric Discomfort, Gallbladder Disorder, Nausea

A female patient from UNITED STATES was prescribed and started Cephalexin on Dec 10, 2010. After Cephalexin was administered, patient encountered several Cephalexin side effects: abdominal pain upper, cow's milk intolerance, fat intolerance, vomiting, pelvic pain, diarrhoea, epigastric discomfort, gallbladder disorder, nausea Additional patient health information: Female , 21 years of age, weighting 174.2 lb, The consumer reported the following symptoms: . Cephalexin dosage: 500 Mg, Unk. Concurrently used drugs:
  • Antibiotics
  • Seroquel (540 Mg, Unk)
  • Antimigraine Preparations
  • Propoxyphene Napsylate W/ Acetaminophen (10065 Unk, Unk)
  • Yaz
  • Nexium (Unk)
  • Yaz
  • Demerol (Unk)
The patient was hospitalized.
Dehydration, Vomiting, Palpitations, Diarrhoea, Chest Pain, Hallucination, Malaise

This report suggests a potential Cephalexin Diarrhoea side effect(s) that can have serious consequences. A 4-year-old female patient from UNITED STATES (weight:NA) was diagnosed with the following health condition(s): streptococcal infection and used Cephalexin (dosage: NA) starting May 27, 2010. Soon after starting Cephalexin the patient began experiencing various side effects, including:
  • Dehydration
  • Vomiting
  • Palpitations
  • Diarrhoea
  • Chest Pain
  • Hallucination
  • Malaise
Drugs used concurrently:NA. The patient was hospitalized. Although Cephalexin demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Diarrhoea, may still occur.
Gastritis, Cholecystitis Chronic, Diarrhoea, Nausea, Biliary Dyskinesia, Gastrooesophageal Reflux Disease, Vomiting, Abdominal Pain

An adverse event was reported by a health professional on Feb 07, 2011 by a Female taking Cephalexin (dosage: 500 Mg Twice A Day) . Location: UNITED STATES , weighting 229.3 lb, patient began experiencing various side effects, including: Patient felt the following Cephalexin side effects: gastritis, cholecystitis chronic, diarrhoea, nausea, biliary dyskinesia, gastrooesophageal reflux disease, vomiting, abdominal pain. Additional medications/treatments:
Multiple prescriptions taken:
  • Yasmin (Unk)
  • Ciprofloxacin (500 Mg Every 12 Hours)
  • Yasmin (Unk)
  • Triamterene And Hydrochlorothiazide (25 - 37.5 Mg)
  • Omeprazole (20 Mg)
  • Aciphex (20 Mg)
  • Norvasc (5 Mg)
  • Carafate
The patient was hospitalized.
Chest Discomfort, Diarrhoea, Dyspnoea, Product Odour Abnormal, Tachycardia, Vomiting

This Diarrhoea problem was reported by a health professional from UNITED STATES. A 50-year-old female patient (weight: NA) was diagnosed with the following medical condition(s): dental operation,infection prophylaxis.On Oct 15, 2010 a consumer started treatment with Cephalexin (dosage: 500 Mg (500 Mg, 4 In 1 D), Per Oral). The following drugs/medications were being taken at the same time: NA. When commencing Cephalexin, the patient experienced the following unwanted symptoms /side effects:
  • Chest Discomfort
  • Diarrhoea
  • Dyspnoea
  • Product Odour Abnormal
  • Tachycardia
  • Vomiting
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 Diarrhoea, may become evident only after a product is in use by the general population.
Diarrhoea, Product Odour Abnormal, Product Substitution Issue

This is a Cephalexin side effect report of a 75-year-old female patient (weight: NA) from UNITED STATES. The patient developed the following symptoms/conditions: hip arthroplasty,prophylaxis and was treated with Cephalexin (dosage: NA) starting Oct 05, 2010. Concurrently used drugs: NA. Soon after that, the consumer experienced the following of symptoms:
  • Diarrhoea
  • Product Odour Abnormal
  • Product Substitution Issue
This opens a possibility that Cephalexin could cause Diarrhoea and that some female patients may be more susceptible.
Diarrhoea, Faeces Pale, Liver Function Test Abnormal, Urine Colour Abnormal, Vomiting

This Diarrhoea side effect was reported by a health professional from UNITED KINGDOM on Jun 07, 2010. A female patient from UNITED KINGDOM , 81 years of age, was diagnosed with and was treated with Cephalexin. Patient felt the following Cephalexin side effects: diarrhoea, faeces pale, liver function test abnormal, urine colour abnormal, vomiting. Cephalexin dosage: 500 Mg, Tid.
Multiple prescriptions taken:
  • Augmentin '125' (375 Mg, Tid)
  • Bisoprolol Fumarate
  • Furosemide
  • Omeprazole
  • Ramipril
  • Simvastatin
  • Warfarin Sodium
The patient was hospitalized. These side effects may potentially be related to Cephalexin.
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DISCLAIMER: ALL DATA PROVIDED AS-IS, refer to terms of use for additional information.

Cephalexin Diarrhoea Causes and Reviews


What is diarrhea?

Diarrhea is loose, watery stools (bowel movements). You have diarrhea if you have loose stools three or more times in one day. Acute diarrhea is diarrhea that lasts a short time. It is a common problem. It usually lasts about one or two days, but it may last longer. Then it goes away on its own.

Diarrhea lasting more than a few days may be a sign of a more serious problem. Chronic diarrhea -- diarrhea that lasts at least four weeks -- can be a symptom of a chronic disease. Chronic diarrhea symptoms may be continual, or they may come and go.

Who gets diarrhea?

People of all ages can get diarrhea. On average, adults In the United States have acute diarrhea once a year. Young children have it an average of twice a year.

People who visit developing countries are at risk for traveler's diarrhea. It is caused by consuming contaminated food or water.

What causes diarrhea?

The most common causes of diarrhea include

  • Bacteria from contaminated food or water
  • Viruses such as the flu, norovirus, or rotavirus . Rotavirus is the most common cause of acute diarrhea in children.
  • Parasites, which are tiny organisms found in contaminated food or water
  • Medicines such as antibiotics, cancer drugs, and antacids that contain magnesium
  • Food intolerances and sensitivities, which are problems digesting certain ingredients or foods. An example is lactose intolerance.
  • Diseases that affect the stomach, small intestine, or colon, such as Crohn's disease
  • Problems with how the colon functions, such as irritable bowel syndrome

Some people also get diarrhea after stomach surgery, because sometimes the surgeries can cause food to move through your digestive system more quickly.

Sometimes no cause can be found. If your diarrhea goes away within a few days, finding the cause is usually not necessary.

What other symptoms might I have with diarrhea?

Other possible symptoms of diarrhea include

  • Cramps or pain in the abdomen
  • An urgent need to use the bathroom
  • Loss of bowel control

If a virus or bacteria is the cause of your diarrhea, you may also have a fever, chills, and bloody stools.

Diarrhea can cause dehydration, which means that your body does not have enough fluid to work properly. Dehydration can be serious, especially for children, older adults, and people with weakened immune systems.

When should I see a doctor for diarrhea?

Although it is usually not harmful, diarrhea can become dangerous or signal a more serious problem. Contact your health care provider if you have

  • Signs of dehydration
  • Diarrhea for more than 2 days, if you are an adult. For children, contact the provider if it lasts more than 24 hours.
  • Severe pain in your abdomen or rectum (for adults)
  • A fever of 102 degrees or higher
  • Stools containing blood or pus
  • Stools that are black and tarry

If children have diarrhea, parents or caregivers should not hesitate to call a health care provider. Diarrhea can be especially dangerous in newborns and infants.

How is the cause of diarrhea diagnosed?

To find the cause of diarrhea, your health care provider may

  • Do a physical exam
  • Ask about any medicines you are taking
  • Test your stool or blood to look for bacteria, parasites, or other signs of disease or infection
  • Ask you to stop eating certain foods to see whether your diarrhea goes away

If you have chronic diarrhea, your health care provider may perform other tests to look for signs of disease.

What are the treatments for diarrhea?

Diarrhea is treated by replacing lost fluids and electrolytes to prevent dehydration. Depending on the cause of the problem, you may need medicines to stop the diarrhea or treat an infection.

Adults with diarrhea should drink water, fruit juices, sports drinks, sodas without caffeine, and salty broths. As your symptoms improve, you can eat soft, bland food.

Children with diarrhea should be given oral rehydration solutions to replace lost fluids and electrolytes.

Can diarrhea be prevented?

Two types of diarrhea can be prevented - rotavirus diarrhea and traveler's diarrhea. There are vaccines for rotavirus. They are given to babies in two or three doses.

You can help prevent traveler's diarrhea by being careful about what you eat and drink when you are in developing countries:

  • Use only bottled or purified water for drinking, making ice cubes, and brushing your teeth
  • If you do use tap water, boil it or use iodine tablets
  • Make sure that the cooked food you eat is fully cooked and served hot
  • Avoid unwashed or unpeeled raw fruits and vegetables

NIH: National Institute of Diabetes and Digestive and Kidney Diseases


Cephalexin Diarrhoea Reviews

Thu, 21 Jun 2012

I also face critical situation low blood pressure,Headache and diarrhea. So i decided to quit and decide not to use like that medicine again.

Mon, 07 Nov 2011

One more pill to go before I finish my dose of Cephalexin for Cellulitis. First of all, the symptom worsened within the first 24 hours - both the doctors failed to tell me that. It did eventually work and about 48 hours later, the swelling and redness from Cellulitis started to decrease. The side effects were not severe, but, at worst, I experienced nausea, stomach ache, diarrhea, and depression (followed by the most whacked out dreams). This is not quite the drug from hell but I am very much ready to finish my dose.

Fri, 16 Mar 2012

After taking Cephalexin I experienced nausea, vomiting and headaches which 800mg of ibuprofen couldn't control.  The sweating (head to toe) was profuse and disconcerting.

Sat, 31 Mar 2012

After a double treatment of Cephalexin 500mg 4 times a day, I am still experiencing intestinal discomfort and loose stools. I also get a lot of gas, bloating and it makes it hard to go anywhere because of the sudden diahrrea that goes with it. I will NEVER take this drug again!

Sat, 18 Jun 2011

I am currently on Cephalexin for a kidney infection. I have so far suffered from joint pain, headaches, unusual vaginal pain and itching, dizziness and discovered a sore throat this morning. I plan to finish my dose but it seems like I'm suffering worse now than with my kidney infection.

Fri, 27 Jul 2012


We assess the severity of the wisdom tooth impaction by using a digital OPG and we provide you with an unbiased opinion on whether the wisdom tooth should be removed or not. Some cases can be removed routinely on the dental chair or can be arranged to be removed under general anaesthesia in a day surgery clinic.

Thu, 22 Mar 2012

terrible tablets axiety depression crying stomach pain aggresive feel so low and down benn on these pills on and off for a UTI had investigated nothing wrong i now see a councillor bcos they make me feel in losing it

Sun, 20 Nov 2011

Was prescribed 14 pills - one pill twice a day for an animal bite. By day 3 the bite was healing nicely but I was already feeling crappy (a little dizzy, tired, generally not so good) so I stopped taking the meds altogeher. Now - four full days later I have been having bloody mucas in my stool all day today. It's freaking me out.

Mon, 14 Sep 2009
does Cephalexin cause weight gain?
Sun, 04 Oct 2009
How long after being started on Cephalexin can urticaria occur?
DISCLAIMER: ALL DATA PROVIDED AS-IS, refer to terms of use for additional information.

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Top Cephalexin Side Effects

Rash (54)
Pruritus (52)
Diarrhoea (49)
Urticaria (45)
Pain (43)
Vomiting (43)
Dyspnoea (40)
Nausea (40)
Dizziness (34)
Pyrexia (28)
Headache (28)
Abdominal Pain (27)
Deep Vein Thrombosis (26)
Abdominal Pain Upper (23)
International Normalised Ratio Increased (23)
Malaise (22)
Renal Failure Acute (20)
Anxiety (19)
Fatigue (19)
Anaphylactic Reaction (18)
Injury (16)
Rash Pruritic (15)
Chills (15)
Dehydration (14)
Blister (14)
Hypersensitivity (14)
Haemoglobin Decreased (14)
Pulmonary Embolism (14)
Oedema Peripheral (13)
Hypovolaemic Shock (13)
Arthralgia (13)
Angioedema (12)
Asthenia (12)
Gallbladder Disorder (12)
Muscle Spasms (12)
Depression (12)
Erythema (11)
Condition Aggravated (11)
Haematuria (11)
Skin Exfoliation (11)
Liver Function Test Abnormal (11)
Somnolence (11)
Myalgia (10)
Chest Pain (10)
Pain In Extremity (10)
Swelling Face (10)
Urinary Tract Infection (10)
Tremor (10)
Swelling (10)
Weight Decreased (9)

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