Common Omnicef Side Effects


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

Diarrhoea (51)
Rash (43)
Urticaria (38)
Faeces Discoloured (29)
Pyrexia (23)
Arthralgia (22)
Pain In Extremity (20)
Vomiting (18)
Hypersensitivity (16)
Abdominal Pain Upper (16)
Nausea (14)
Chest Pain (13)
Serum Sickness (13)
Pruritus (13)
Clostridial Infection (13)
Oedema Peripheral (12)
Pain (12)
Abnormal Behaviour (12)
Abdominal Pain (12)
Dyspnoea (11)

➢ More



If you or someone in your family has experienced a serious side effect to a health product, you are encouraged to report the experience to your health care professional (e.g. physician, pharmacist). You could also complete a copy of the side effect reporting form or report your side effect to FDA.

Omnicef Side Effects Reported to FDA



Omnicef Side Effect Report#9875201
Palpitations, Palpitations, Tachycardia, Arrhythmia
This is a report of a 5-year-old male patient (weight: NA) from US, suffering from the following health symptoms/conditions: sinusitis,ear infection, who was treated with Omnicef (dosage: NA, start time: NS), combined with: NA. and developed a serious reaction and side effect(s): Palpitations, Palpitations, Tachycardia, Arrhythmia after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Omnicef treatment in male patients, resulting in Palpitations side effect.
Omnicef Side Effect Report#9732950
Hypersensitivity, Local Swelling, Urticaria
This report suggests a potential Omnicef Hypersensitivity side effect(s) that can have serious consequences. A patient (weight: NA) from US was diagnosed with the following symptoms/conditions: otitis media and used Omnicef (dosage: NA) starting
Feb 16, 2013. After starting Omnicef the patient began experiencing various side effects, including: Hypersensitivity, Local Swelling, UrticariaAdditional drugs used concurrently: NA. Although Omnicef demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Hypersensitivity, may still occur.
Omnicef Side Effect Report#9732841
Hypersensitivity
This Hypersensitivity problem was reported by a consumer or non-health professional from US. A female patient (weight: NA) was diagnosed with the following symptoms/conditions: NA. On NS this consumer started treatment with Omnicef (dosage: NA). The following drugs were being taken at the same time:
  • Rifampin
When using Omnicef, the patient experienced the following unwanted symptoms/side effects: HypersensitivityAlthough all drugs are carefully tested before they are licensed for use, they carry side effect risks. Some side effects, such as Hypersensitivity, may become evident only after a product is in use by the general population.
Omnicef Side Effect Report#8947618
Faeces Discoloured
This Faeces Discoloured side effect was reported by a pharmacist from US. A male patient (weight:NA) experienced the following symptoms/conditions: sinusitis,rhinorrhoea.The patient was prescribed Omnicef (drug dosage: In 4 Ml Formulation), which was initiated on NS. Concurrently used drugs:
  • Singulair
.After starting to take Omnicef the consumer reported adverse symptoms, such as: Faeces DiscolouredThese side effects may potentially be related to Omnicef.
Omnicef Side Effect Report#8947613
Rash
This is a report of a 3-year-old female patient (weight: NA) from US, suffering from the following health symptoms/conditions: NA, who was treated with Omnicef (dosage: NA, start time: NS), combined with: NA. and developed a serious reaction and side effect(s): Rash after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Omnicef treatment in female patients, resulting in Rash side effect.
Omnicef Side Effect Report#8943568
Rash
This report suggests a potential Omnicef Rash side effect(s) that can have serious consequences. A 69-year-old female patient (weight: NA) from Country Not Specified was diagnosed with the following symptoms/conditions: NA and used Omnicef (dosage: NA) starting NS. After starting Omnicef the patient began experiencing various side effects, including: RashAdditional drugs used concurrently: NA. Although Omnicef demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Rash, may still occur.
Omnicef Side Effect Report#8943566
Hypersensitivity
This Hypersensitivity problem was reported by a consumer or non-health professional from US. A female patient (weight: NA) was diagnosed with the following symptoms/conditions: NA. On NS this consumer started treatment with Omnicef (dosage: NA). The following drugs were being taken at the same time:
  • Rifampin
When using Omnicef, the patient experienced the following unwanted symptoms/side effects: HypersensitivityAlthough all drugs are carefully tested before they are licensed for use, they carry side effect risks. Some side effects, such as Hypersensitivity, may become evident only after a product is in use by the general population.
Omnicef Side Effect Report#8943539
Pruritus
This Pruritus side effect was reported by a consumer or non-health professional from Country Not Specified. A 45-year-old female patient (weight:NA) experienced the following symptoms/conditions: NA.The patient was prescribed Omnicef (drug dosage: NA), which was initiated on NS. Concurrently used drugs: NA..After starting to take Omnicef the consumer reported adverse symptoms, such as: PruritusThese side effects may potentially be related to Omnicef.
Omnicef Side Effect Report#8943528
Rash
This is a report of a 10-year-old male patient (weight: NA) from US, suffering from the following health symptoms/conditions: NA, who was treated with Omnicef (dosage: NA, start time: NS), combined with: NA. and developed a serious reaction and side effect(s): Rash after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Omnicef treatment in male patients, resulting in Rash side effect.
Omnicef Side Effect Report#8943521
Arthralgia, Pruritus, Headache
This report suggests a potential Omnicef Arthralgia side effect(s) that can have serious consequences. A 54-year-old male patient (weight: NA) from US was diagnosed with the following symptoms/conditions: sinusitis,headache and used Omnicef (dosage: NA) starting
Oct 14, 2012. After starting Omnicef the patient began experiencing various side effects, including: Arthralgia, Pruritus, HeadacheAdditional drugs used concurrently: NA. Although Omnicef demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Arthralgia, may still occur.
Omnicef Side Effect Report#8376976-7
Urinary Tract Infection, Infection, Fungal Infection, Sinusitis
This Urinary Tract Infection problem was reported by a consumer or non-health professional from United States. A female patient (weight: NA) was diagnosed with the following symptoms/conditions: infection. On
Jan 01, 2002 this consumer started treatment with Omnicef (dosage: NA). The following drugs were being taken at the same time:
  • Biaxin
  • Remicade
  • Zithromax
When using Omnicef, the patient experienced the following unwanted symptoms/side effects: Urinary Tract Infection, Infection, Fungal Infection, SinusitisAlthough all drugs are carefully tested before they are licensed for use, they carry side effect risks. Some side effects, such as Urinary Tract Infection, may become evident only after a product is in use by the general population.
Omnicef Side Effect Report#8355907-X
Neck Pain, Spinal Pain, Lymph Node Pain, Arthralgia, Urine Odour Abnormal, Abdominal Pain, Myalgia, Urine Colour Abnormal, Abnormal Faeces
This Neck Pain side effect was reported by a consumer or non-health professional from United States. A male patient (weight:NA) experienced the following symptoms/conditions: labyrinthitis.The patient was prescribed Omnicef (drug dosage: 1 Capsule Twice Daily Po), which was initiated on
May 01, 2012. Concurrently used drugs: NA..After starting to take Omnicef the consumer reported adverse symptoms, such as: Neck Pain, Spinal Pain, Lymph Node Pain, Arthralgia, Urine Odour Abnormal, Abdominal Pain, Myalgia, Urine Colour Abnormal, Abnormal FaecesThese side effects may potentially be related to Omnicef.
Omnicef Side Effect Report#8329754
Clostridium Difficile Colitis
This is a report of a 75-year-old female patient (weight: NA) from US, suffering from the following health symptoms/conditions: NA, who was treated with Omnicef (dosage: 300 Mg, 2x/day, start time: 2008), combined with:
  • Pf 04840082 (916.32 Mg, Single)
  • Rocephin (1 Mg, Unk)
  • Flagyl (500 Mg Every 12 Hours)
  • Acetaminophen (600 Mg, As Needed)
  • Atenolol (25 Mg, 1x/day)
  • Voltaren (1% As Needed Gel)
  • Lisinopril (20 Mg, 1x/day)
  • Benicar (40 Mg, 1x/day)
and developed a serious reaction and side effect(s): Clostridium Difficile Colitis after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Omnicef treatment in female patients, resulting in Clostridium Difficile Colitis side effect. The patient was hospitalized.
Omnicef Side Effect Report#8297773-7
Oedema Peripheral, Pain In Extremity, Unevaluable Event, Movement Disorder, Fall
This report suggests a potential Omnicef Oedema Peripheral side effect(s) that can have serious consequences. A male patient (weight: NA) from United States was diagnosed with the following symptoms/conditions: NA and used Omnicef (dosage: 600 Mg, 2x/day) starting
Sep 01, 2011. After starting Omnicef the patient began experiencing various side effects, including: Oedema Peripheral, Pain In Extremity, Unevaluable Event, Movement Disorder, FallAdditional drugs used concurrently:
  • Rifabutin (150 Mg, 2x/day)
  • Septra (160/800 Mg Two Tablets, 2x/day)
  • Coumadin (Unk)
  • Mycobutin (Unk)
  • Septra Ds (2 Tab Bid (takes It Cyclically One Week Every Month))
Although Omnicef demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Oedema Peripheral, may still occur.
Omnicef Side Effect Report#8261652-1
Emotional Disorder, Fatigue
This Emotional Disorder problem was reported by a consumer or non-health professional from United States. A 67-year-old female patient (weight: NA) was diagnosed with the following symptoms/conditions: ear disorder. On
Mar 28, 2012 this consumer started treatment with Omnicef (dosage: 300 Mg). The following drugs were being taken at the same time: NA. When using Omnicef, the patient experienced the following unwanted symptoms/side effects: Emotional Disorder, FatigueAlthough all drugs are carefully tested before they are licensed for use, they carry side effect risks. Some side effects, such as Emotional Disorder, may become evident only after a product is in use by the general population.
Omnicef Side Effect Report#8163339-2
Dyskinesia, Musculoskeletal Stiffness, Tic, Muscle Tightness
This Dyskinesia side effect was reported by a consumer or non-health professional from United States. A 15-year-old male patient (weight:NA) experienced the following symptoms/conditions: bronchitis,asthma,cough,respiratory tract congestion.The patient was prescribed Omnicef (drug dosage: NA), which was initiated on
Dec 21, 2011. Concurrently used drugs:
  • Qvar 40
.After starting to take Omnicef the consumer reported adverse symptoms, such as: Dyskinesia, Musculoskeletal Stiffness, Tic, Muscle TightnessThese side effects may potentially be related to Omnicef.
Omnicef Side Effect Report#8160276-4
Tongue Disorder, Diarrhoea
This is a report of a female patient (weight: NA) from United States, suffering from the following health symptoms/conditions: pneumonia, who was treated with Omnicef (dosage: 5ml, start time:
Feb 10, 2012), combined with: NA. and developed a serious reaction and side effect(s): Tongue Disorder, Diarrhoea after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Omnicef treatment in female patients, resulting in Tongue Disorder side effect.
Omnicef Side Effect Report#8083298-0
Paraesthesia, Hypoaesthesia, Upper Respiratory Tract Infection
This report suggests a potential Omnicef Paraesthesia side effect(s) that can have serious consequences. A 54-year-old female patient (weight: NA) from United States was diagnosed with the following symptoms/conditions: NA and used Omnicef (dosage: NA) starting
Jan 25, 2011. After starting Omnicef the patient began experiencing various side effects, including: Paraesthesia, Hypoaesthesia, Upper Respiratory Tract InfectionAdditional drugs used concurrently:
  • Humira
Although Omnicef demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Paraesthesia, may still occur.
Omnicef Side Effect Report#8000488-3
Pulmonary Embolism, Anxiety, Emotional Distress, Pain, Dyspnoea, Panic Attack
This Pulmonary Embolism problem was reported by a physician from United States. A 43-year-old female patient (weight: NA) was diagnosed with the following symptoms/conditions: NA. On
Feb 28, 2005 this consumer started treatment with Omnicef (dosage: 300 Mg, Unk). The following drugs were being taken at the same time:
  • Nexium (40 Mg, Qd)
  • Alprazolam (1 Mg, Unk)
  • Singulair (10 Mg, Qd)
  • Triamterene And Hydrochlorothiazide (Unk)
  • Zovirax (5 %, Unk)
  • Doc-q-lace (100 Mg, Unk)
  • Warfarin Sodium (5 Mg, Unk)
  • Nasonex (Unk)
When using Omnicef, the patient experienced the following unwanted symptoms/side effects: Pulmonary Embolism, Anxiety, Emotional Distress, Pain, Dyspnoea, Panic AttackThe patient was hospitalized.Although all drugs are carefully tested before they are licensed for use, they carry side effect risks. Some side effects, such as Pulmonary Embolism, may become evident only after a product is in use by the general population.
Omnicef Side Effect Report#7959269-9
Oedema Peripheral
This Oedema Peripheral side effect was reported by a consumer or non-health professional from United States. A 5-year-old male patient (weight:NA) experienced the following symptoms/conditions: NA.The patient was prescribed Omnicef (drug dosage: NA), which was initiated on NS. Concurrently used drugs: NA..After starting to take Omnicef the consumer reported adverse symptoms, such as: Oedema PeripheralThese side effects may potentially be related to Omnicef.
Omnicef Side Effect Report#7959268-7
Erythema, Myalgia, Urticaria, Pyrexia, Abdominal Distension
This is a report of a male patient (weight: NA) from United States, suffering from the following health symptoms/conditions: pharyngitis streptococcal, who was treated with Omnicef (dosage: 1/2 Teaspoon 2 Times A Day, start time:
Dec 19, 2010), combined with: NA. and developed a serious reaction and side effect(s): Erythema, Myalgia, Urticaria, Pyrexia, Abdominal Distension after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Omnicef treatment in male patients, resulting in Erythema side effect.
Omnicef Side Effect Report#7959265-1
Rash, Pyrexia
This report suggests a potential Omnicef Rash side effect(s) that can have serious consequences. A 5-year-old male patient (weight: NA) from United States was diagnosed with the following symptoms/conditions: NA and used Omnicef (dosage: NA) starting NS. After starting Omnicef the patient began experiencing various side effects, including: Rash, PyrexiaAdditional drugs used concurrently: NA. Although Omnicef demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Rash, may still occur.
Omnicef Side Effect Report#7959264-X
Hypersensitivity
This Hypersensitivity problem was reported by a consumer or non-health professional from . A 7-year-old male patient (weight: NA) was diagnosed with the following symptoms/conditions: NA. On NS this consumer started treatment with Omnicef (dosage: NA). The following drugs were being taken at the same time: NA. When using Omnicef, the patient experienced the following unwanted symptoms/side effects: HypersensitivityAlthough all drugs are carefully tested before they are licensed for use, they carry side effect risks. Some side effects, such as Hypersensitivity, may become evident only after a product is in use by the general population.
Omnicef Side Effect Report#7959172-4
Rash
This Rash side effect was reported by a consumer or non-health professional from United States. A female patient (weight:NA) experienced the following symptoms/conditions: staphylococcal infection.The patient was prescribed Omnicef (drug dosage: NA), which was initiated on
Nov 02, 2010. Concurrently used drugs: NA..After starting to take Omnicef the consumer reported adverse symptoms, such as: RashThese side effects may potentially be related to Omnicef.
Omnicef Side Effect Report#7959171-2
Rash
This is a report of a female patient (weight: NA) from United States, suffering from the following health symptoms/conditions: respiratory tract congestion, who was treated with Omnicef (dosage: NA, start time:
Jan 01, 2006), combined with: NA. and developed a serious reaction and side effect(s): Rash after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Omnicef treatment in female patients, resulting in Rash side effect.


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The appearance of Omnicef on this list does not mean that FDA has concluded that the drug has the listed risk. It means that FDA has identified a potential safety issue, but it does not mean that FDA has found a causal relationship between the drug and the listed risk.

What are common Omnicef Side Effects for Women?

Women Side Effects Reports
Diarrhoea 33
Rash 21
Urticaria 18
Pyrexia 13
Faeces Discoloured 12
Hypersensitivity 12
Nausea 11
Abdominal Pain 10
Oedema Peripheral 10
Arthralgia 9

What are common Omnicef Side Effects for Men?

Men Side Effects Reports
Rash 21
Urticaria 19
Diarrhoea 17
Faeces Discoloured 16
Arthralgia 13
Pain In Extremity 10
Pyrexia 10
Vomiting 10
Abnormal Behaviour 9
Abdominal Pain Upper 8

Track Your Side Effects

Note Your Observations

It is really important to keep track of your health symptoms, right from the time you start a new medicine. You can do it any way you prefer: in a notebook, in a computer file or using our online tool. You should also note down any other medicines you are taking at the same time, because there could be an interaction between these medicines.

Why Your Notes are Important

Your notes could be helpful in several ways:

  • You can use them to remind you of details that may alert your health care professional(s) to a problem
  • You will have a record to refer to in the future, in case you are ever prescribed the same medicine again

  • Log Form

    You can use the following log form to write down important information, like the date and time you experienced a side effect and your symptoms, how strong the symptoms were, and any other medicines you were using.

    Medicine Name and Dosage:
    Side Effects Scale Date & Time Other Medicine(s) or Treatment(s)
    Scale: 1 = very mild to 10 = very bad

    Side effects reports are analyzed to discover potential health product safety signals. Some important reactions may take an extremely long time to develop or occur infrequently. Continued monitoring of adverse reactions is thus essential to maintain a comprehensive safety and effectiveness profile of health products.

    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.

    Omnicef reports list potential signals of serious risks and new safety information that were identified using the FDA Adverse Event Reporting System (FAERS).
    FAERS is a database that contains information on adverse event and medication errors reports submitted to FDA by healthcare professionals (such as physicians, pharmacists, nurses and others), consumers (such as patients, family members, layers and others) and manufacturers.

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