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Cephalexin Hypersensitivity Side Effects

Cephalexin Hypersensitivity Side Effect Reports


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



Renal Failure Acute, Tubulointerstitial Nephritis, Haemodialysis, Hypersensitivity, Somnolence

This Hypersensitivity side effect was reported by a pharmacist from US. A 2-year-old patient (weight:NA) experienced the following symptoms/conditions: urinary tract infection. The patient was prescribed Cephalexin (dosage: NA), which was started on Nov 22, 2013. Concurrently used drugs: NA. When starting to take Cephalexin the consumer reported the following symptoms:
  • Renal Failure Acute
  • Tubulointerstitial Nephritis
  • Haemodialysis
  • Hypersensitivity
  • Somnolence
The patient was hospitalized and became disabled. These side effects may potentially be related to Cephalexin.
Dry Throat, Odynophagia, Hypersensitivity, Somnolence

This Hypersensitivity Cephalexin side effect was reported by a consumer or non-health professional from US on Aug 16, 2013. A Female , 19 years of age, was diagnosed with and was treated with Cephalexin. The patient presented the following health conditions:
  • Dry Throat
  • Odynophagia
  • Hypersensitivity
  • Somnolence
. Cephalexin dosage: NA. Additional drugs used at the same time: NA.
Hypersensitivity

This is a Cephalexin side effect report of a 28-year-old female patient (weight:NA) from US, suffering from the following symptoms/conditions: infection, who was treated with Cephalexin (dosage:500mg/1 Pill Twice Daily Taken By Mouth, start time: Sep 03, 2013), 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 Cephalexin treatment in female patients suffering from infection, resulting in Hypersensitivity.

Rash, Rash Pruritic, Swelling Face, Hypersensitivity

A 30-year-old female patient (weight: NA) from US with the following symptoms: infection started Cephalexin treatment (dosage: NA) on NS. Soon after starting Cephalexin treatment, the consumer experienced several side effects, including:
  • Rash
  • Rash Pruritic
  • Swelling Face
  • Hypersensitivity
. Concurrently used drugs: NA. This finding indicates that some patients can be more vulnerable to developing Cephalexin side effects, such as Hypersensitivity.
Hypersensitivity, Oral Candidiasis

A female patient from UNITED STATES was prescribed and started Cephalexin on Jul 16, 2010. Patient felt the following Cephalexin side effects: hypersensitivity, oral candidiasis Additional patient health information: Female , 35 years of age, weighting 134.0 lb, The consumer reported the following symptoms: was diagnosed with and. Cephalexin dosage: Tak 1 Twice A Day 2 - A Day. Concurrently used drugs: NA.
Eyelid Oedema, Hypersensitivity, Swelling Face, Yellow Skin

This report suggests a potential Cephalexin Hypersensitivity side effect(s) that can have serious consequences. A 38-year-old female patient from UNITED STATES (weight:NA) was diagnosed with the following health condition(s): infection and used Cephalexin (dosage: 250 Mg. 4 Times By Mouth) starting May 01, 2008. Soon after starting Cephalexin the patient began experiencing various side effects, including:
  • Eyelid Oedema
  • Hypersensitivity
  • Swelling Face
  • Yellow Skin
Drugs used concurrently:NA. Although Cephalexin demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Hypersensitivity, may still occur.
Diarrhoea, Hypersensitivity, Hyperventilation, Nausea

An adverse event was reported by a consumer or non-health professional on Aug 15, 2007 by a Female taking Cephalexin (dosage: 500 Mg 1) was diagnosed with and. Location: UNITED STATES , 61 years of age, weighting 183.0 lb, patient began experiencing various side effects, including: Directly after treatment started, patient experienced the unwanted or unexpected Cephalexin side effects: diarrhoea, hypersensitivity, hyperventilation, nausea. Additional medications/treatments: The patient was hospitalized.
Fluid Retention, Food Allergy, Hypersensitivity, Nausea, Swelling, Throat Tightness

This Hypersensitivity problem was reported by a consumer or non-health professional from UNITED STATES. A 56-year-old female patient (weight: NA) was diagnosed with the following medical condition(s): NA.On Jul 20, 2006 a consumer started treatment with Cephalexin (dosage: (500 Mg)). The following drugs/medications were being taken at the same time:
  • Verapamil
  • Lansoprazole
  • Metoprolol Succinate
  • Sertraline Hydrochloride
  • Avalide
  • Loratadine
  • Humalog
When commencing Cephalexin, the patient experienced the following unwanted symptoms /side effects:
  • Fluid Retention
  • Food Allergy
  • Hypersensitivity
  • Nausea
  • Swelling
  • Throat Tightness
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, Urticaria

This is a Cephalexin side effect report of a 61-year-old female patient (weight: NA) from UNITED STATES. The patient developed the following symptoms/conditions: therapeutic procedure and was treated with Cephalexin (dosage: 2000 Mg (500 Mg,four Times A Day), Oral) starting Jan 09, 2006. Concurrently used drugs: NA. Soon after that, the consumer experienced the following of symptoms:
  • Hypersensitivity
  • Urticaria
This opens a possibility that Cephalexin could cause Hypersensitivity and that some female patients may be more susceptible.
Feeling Hot, Hypersensitivity, Ocular Hyperaemia

This Hypersensitivity side effect was reported by a consumer or non-health professional from UNITED STATES on Dec 18, 2006. A female patient from UNITED STATES , 67 years of age, was treated with Cephalexin. Directly after treatment started, patient experienced the unwanted or unexpected Cephalexin side effects: feeling hot, hypersensitivity, ocular hyperaemia. Cephalexin dosage: 500 Mg, Qd.
Associated medications used:
  • Hyzaar
These side effects may potentially be related to Cephalexin.
Dizziness, Herpes Simplex, Hypersensitivity, Localised Infection, Nausea

This Hypersensitivity side effect was reported by a consumer or non-health professional from UNITED STATES. A female patient (weight:NA) experienced the following symptoms/conditions: herpes simplex,localised infection,staphylococcal skin infection. The patient was prescribed Cephalexin (dosage: NA), which was started on Dec 14, 2006. Concurrently used drugs: NA. When starting to take Cephalexin the consumer reported the following symptoms:
  • Dizziness
  • Herpes Simplex
  • Hypersensitivity
  • Localised Infection
  • Nausea
These side effects may potentially be related to Cephalexin.
Blood Pressure Increased, Hypersensitivity, Throat Tightness, Urticaria

This Hypersensitivity Cephalexin side effect was reported by a consumer or non-health professional from UNITED STATES on Sep 29, 2006. A Female , 63 years of age, weighting 130.0 lb, was diagnosed with and was treated with Cephalexin. The patient presented the following health conditions:
  • Blood Pressure Increased
  • Hypersensitivity
  • Throat Tightness
  • Urticaria
. Cephalexin dosage: 1 Cap 3 X Daily Po. Additional drugs used at the same time: NA. The patient was hospitalized and became disabled.
Hypersensitivity, Oedema Peripheral

This is a Cephalexin side effect report of a 57-year-old female patient (weight:NA) from AUSTRALIA, suffering from the following symptoms/conditions: NA, who was treated with Cephalexin (dosage:500 Mg; Po, start time: NS), combined with: NA., and developed a serious reaction and a Hypersensitivity side effect. The patient presented with:
  • Hypersensitivity
  • Oedema Peripheral
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 NA, resulting in Hypersensitivity.
Hypersensitivity, Rash

A 56-year-old patient (weight: NA) from UNITED STATES with the following symptoms: NA started Cephalexin treatment (dosage: 500 Mg Q6 H Oral) on NS. Soon after starting Cephalexin treatment, the consumer experienced several side effects, including:
  • Hypersensitivity
  • Rash
. Concurrently used drugs: NA. This finding indicates that some patients can be more vulnerable to developing Cephalexin side effects, such as Hypersensitivity.

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

Cephalexin 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.


Cephalexin Hypersensitivity 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)
Vomiting (43)
Pain (41)
Nausea (40)
Dyspnoea (40)
Dizziness (34)
Headache (28)
Pyrexia (28)
Abdominal Pain (26)
Deep Vein Thrombosis (26)
International Normalised Ratio Increased (23)
Abdominal Pain Upper (22)
Malaise (22)
Renal Failure Acute (20)
Fatigue (19)
Anxiety (18)
Anaphylactic Reaction (18)
Injury (16)
Chills (15)
Rash Pruritic (15)
Blister (14)
Dehydration (14)
Haemoglobin Decreased (14)
Hypersensitivity (14)
Pulmonary Embolism (14)
Arthralgia (13)
Hypovolaemic Shock (13)
Oedema Peripheral (13)
Muscle Spasms (12)
Gallbladder Disorder (12)
Depression (12)
Asthenia (12)
Angioedema (12)
Condition Aggravated (11)
Erythema (11)
Liver Function Test Abnormal (11)
Haematuria (11)
Skin Exfoliation (11)
Somnolence (11)
Urinary Tract Infection (10)
Tremor (10)
Swelling Face (10)
Swelling (10)
Pain In Extremity (10)
Myalgia (10)
Chest Pain (10)
Hypertension (9)

➢ More

Cephalexin Common Side Effects

If you experienced any harmful or unwanted effects of Mucinex, please share your experience. This could help to raise awareness about Mucinex side effects, identify uknown risks and inform health professionals and patients taking Mucinex.

Examples: headache, dizziness

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

Rash (54)
Pruritus (52)
Diarrhoea (49)
Urticaria (45)
Vomiting (43)
Pain (41)
Dyspnoea (40)
Nausea (40)
Dizziness (34)
Headache (28)
Pyrexia (28)
Abdominal Pain (26)
Deep Vein Thrombosis (26)
International Normalised Ratio Increased (23)
Malaise (22)
Abdominal Pain Upper (22)
Renal Failure Acute (20)
Fatigue (19)
Anaphylactic Reaction (18)
Anxiety (18)

➢ More


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