Cefdinir (Oral)

Cefdinir is a medication that treats bacterial infections which acts in many different parts of the body. It does this by killing bacteria or by preventing their growth.


Cefdinir is a medication that is used to treat a variety of bacterial infections in many different parts of the patient's body. However, this drug does not function as a way to reduce or get rid of colds, flu or other viral infections that may cause illnesses - it only works on infections caused by bacteria.

This medication is part of a class of drugs known as cephalosporin antibiotics. Cefdinir functions by killing off the bacteria that are causing the infection, or by preventing their growth, which leads to the end of the illness.

Cefdinir is only available on prescription and is available in two formats: powder for suspension and capsule. The patients' doctor may advise taking one or the other, depending on requirements.

Conditions treated

Budesonide is used as a treatment medication for the following conditions or illnesses:

  • Bacterial infections

Type of medicine

  • Powder suspension or capsule
  • Cephalosporin antibiotics

Side effects

As well as the needed and required effects that are caused by this medication, Cefdinir may cause other side effects that may vary in levels of seriousness. However, the number of side effects experienced varies from patient to patient during treatment with this medication. Should any of the side effects happen during treatment, it is essential that the patient gets in contact with their doctor as soon as they can. Some of the effects may require medical support or help.

The patient should check with a doctor if any of the side effects below occur at any point during treatment:

  • Yellow eyes or skin
  • Wheezing
  • Weight gain
  • Vomiting of blood
  • Upper right abdominal or stomach pain
  • Unusual weight loss
  • Unusual tiredness or weakness
  • Unusual bleeding or bruising
  • Unpleasant breath odor
  • Tightness in the chest
  • Swollen lymph glands
  • Swollen glands
  • Swelling at the face, fingers, feet or lower legs
  • Sweating
  • Sudden decrease in the amount of urine
  • Sores, ulcers, or spots on the lips or in the mouth
  • Sore throat
  • Slow or irregular breathing
  • Shortness of breath
  • Severe stomach pain
  • Seizures
  • Scaly skin
  • Red, swollen skin
  • Red, irritated eyes
  • Red skin lesions with a purple middle
  • Rash
  • Puffiness or swelling of eyelids or around the eyes, face, lips, or tongue
  • Problems with bleeding or clotting
  • Pinpoint red spots on skin
  • Persistent bleeding/oozing from puncture sites, mouth, or nose
  • Pale skin
  • Painful, red lumps under the skin, mostly on the legs
  • Painful or difficult urination
  • Pain or discomfort in the jaw, back, arms or neck
  • Pain in the ankles or knees
  • Nosebleeds
  • Noisy breathing
  • Nausea or vomiting
  • Muscle pain or stiffness
  • Muscle cramps or spasms
  • Muscle aches
  • Loss of heat from the body
  • Loss of consciousness
  • Loss of appetite
  • Lightheadedness
  • Light-colored stools
  • Joint or muscle pain
  • Itching
  • Irregular, fast or slow, or shallow breathing
  • Irregular heartbeat
  • Inflammation of the joints
  • Increased thirst
  • Hoarseness
  • Hives
  • High fever
  • Heavier menstrual periods
  • Headache
  • General tiredness and weakness
  • General body swelling
  • Fever
  • Feeling of discomfort
  • Fast, weak pulse
  • Fast heartbeat
  • Extreme fatigue
  • Dizziness
  • Dilated neck veins
  • Difficulty with breathing or swallowing
  • Difficult or troubled breathing
  • Diarrhea, which may be bloody
  • Dark-colored urine
  • Cracks in the skin
  • Coughing or vomiting blood
  • Cough
  • Confusion
  • Cold, clammy skin
  • Clay-colored stools
  • Chills
  • Chest pain or discomfort
  • Bruising
  • Blue lips, fingernails, or skin
  • Bloody, black, or tarry stools
  • Bloody or cloudy urine
  • Bloody nose
  • Blood in the urine
  • Bloating
  • Blistering, peeling, or loosening of the skin
  • Bleeding gums
  • Back, leg, or stomach pains
  • Abdominal or stomach cramps or tenderness

As well as these side effects, which can require medical attention as soon as possible, Cefdinir can also cause side effects that do not need medical care initially, simply due to the body's reaction to the medication. However, if these symptoms worsen, medical attention may be required.

If these side effects become uncomfortable, the patient should contact their doctor:

  • Vaginal yeast infection
  • Unable to sleep
  • Thick, clear or white vaginal discharge (with no odor or with a mild odor)
  • Swelling or inflammation of the mouth
  • Stomach discomfort, upset, or pain
  • Soreness/redness around the fingernails and toenails
  • Sleepiness or unusual drowsiness
  • Redness, pain, swelling of the eye/eyelid/inner lining of the eyelid
  • Rash with flat lesions/small raised lesions on the skin
  • Passing gas
  • Pain during sexual intercourse
  • Lack or loss of strength
  • Itching of the vagina or genital area
  • Indigestion
  • Increase in body movements
  • Heartburn
  • Full feeling
  • Excess air or gas (stomach or intestines)
  • Dry mouth
  • Discharge, excessive tearing
  • Constipation
  • Burning, dry, or itching eyes
  • Belching
  • Acid or sour stomach

Many medications can cause an allergic reaction. If Cefdinir causes any signs of swelling, hives, or problems with breathing, it's vital that the patient receives emergency medical attention as soon as they can.


Cefdinir comes in a capsule form and also a suspension (liquid) that can be taken by mouth. This medication can be taken both with or without food, according to doctor's instructions, every 12-24 hours for 5-10 days. Cefdinir should be taken at around the same time each day.

If taking the suspension form of Cefdinir, shake the sachet well every time you use it, to ensure the drug is mixed evenly every time.

The patient should always continue to take their dosage of Cefdinir, even when feeling better. If you stop taking the drug too soon or miss doses, the bacterial infection may not be one hundred percent treated, and this could cause the bacterial infection to become more resistant to treatment.

It is critical to take a missed dose as soon as you remember. However, if it is nearly time for your next dosage of medication, skip the missed dose and continue with your regular medication schedule. Don't take a double dose to make up for the missed dose, as this can result in complications. If you're not sure if you've taken your medication, never take the second dose, just in case.

If the patient is experiencing any of the following symptoms, they may be experiencing an overdose, and it is critical that they get medical support as soon as possible:

  • Trembling
  • Sweating
  • Stomach fullness or discomfort
  • Passing of gas
  • Pain/weakness in the hands or feet
  • Indigestion
  • Dizziness/faintness when getting up from a lying or sitting position suddenly
  • Diarrhea
  • Blurred vision


Many medications may interact within the body with other medicines that are currently prescribed or have been taken previously. This can lead to the effects of any of the drugs being taken changing, or more side effects. Either of these can lead to the medication causing the patient harm or losing its effectiveness over time.

Both patients and their doctors should maintain an up to date record of all drugs and over the counter items being used regularly and recently, as this enables the doctor to prevent or minimize issues with drug interaction. A fully realized picture of a patient's medical history may influence the medical professional's decision to prescribe this drug as a viable medication.

It's of importance that all parties involved are knowledgeable of all medications within the patient's system, whether that's prescription drug treatments or over the counter tablets. The patient should make their doctor aware of all current and recent medication usage, so their treatment is effective and less likely to cause harm.

Live cholera vaccines can cause a severe interaction when taken with Cefdinir and it is not recommended that these two medications be used in conjunction with each other. If taken or prescribed together, it is key for the patient to get in contact with their healthcare professional:

The below medications may cause a moderate interaction when taken with this medication, and it is recommended that the patient should contact their doctor if they are already taking one of these medications or if both medications are taken together unintentionally:

  • Typhoid Vaccine, Live
  • Torsemide
  • Probenecid
  • Pemetrexed
  • Mycophenolic Acid
  • Mycophenolate Mofetil
  • Multivitamin, Prenatal
  • Multivitamin With Minerals
  • Multivitamin With Iron And Fluoride
  • Multivitamin With Iron
  • Mestranol / Norethindrone
  • Magnesium Oxide
  • Magnesium Hydroxide / Mineral Oil
  • Magnesium Hydroxide
  • Magnesium Carbonate
  • Magaldrate / Simethicone
  • Magaldrate
  • Iron Protein Succinylate
  • Iron Polysaccharide
  • Indium Oxyquinoline In-111
  • Heme Iron Polypeptide / Iron Polysaccharide
  • Heme Iron Polypeptide
  • Furosemide
  • Ferrous Sulfate / Folic Acid
  • Ferrous Sulfate
  • Ferrous Gluconate
  • Ferrous Fumarate / Iron Polysaccharide
  • Ferrous Fumarate / Folic Acid / Iron Polysaccharide
  • Ferrous Fumarate / Folic Acid
  • Ferrous Fumarate
  • Ferric Citrate
  • Ethinyl Estradiol / Norgestrel
  • Ethinyl Estradiol / Norgestimate
  • Ethinyl Estradiol / Norethindrone
  • Ethinyl Estradiol / Norelgestromin
  • Ethinyl Estradiol / Levonorgestrel
  • Ethinyl Estradiol / Folic Acid / Levonorgestrel
  • Ethinyl Estradiol / Etonogestrel
  • Ethinyl Estradiol / Ethynodiol
  • Ethinyl Estradiol
  • Ethacrynic Acid
  • Entecavir
  • Drospirenone / Ethinyl Estradiol / Levomefolate Calcium
  • Drospirenone / Ethinyl Estradiol
  • Docusate / Ferrous Fumarate
  • Dihydroxyaluminum Sodium Carbonate
  • Desogestrel / Ethinyl Estradiol
  • Colchicine / Probenecid
  • Citric Acid / Magnesium Oxide / Sodium Picosulfate
  • Citric Acid / Glucono-Delta-Lactone / Magnesium Carbonate Topical
  • Cholecalciferol / Iron Polysaccharide
  • Chloramphenicol
  • Cascara Sagrada / Magnesium Hydroxide
  • Carbonyl Iron
  • Calcium Carbonate / Magnesium Hydroxide / Simethicone
  • Calcium Carbonate / Magnesium Hydroxide
  • Calcium Carbonate / Magnesium Carbonate
  • Calcium Carbonate / Famotidine / Magnesium Hydroxide
  • Calcium Acetate / Magnesium Carbonate
  • Calcium / Ferrous Fumarate / Vitamin D
  • Bumetanide
  • Balsalazide
  • Ascorbic Acid / Iron Polysaccharide
  • Ascorbic Acid / Ferrous Sulfate
  • Ascorbic Acid / Ferrous Fumarate
  • Ascorbic Acid / Carbonyl Iron
  • Ampicillin / Probenecid
  • Aluminum Hydroxide / Mineral Oil
  • Aluminum Hydroxide / Magnesium Trisilicate
  • Aluminum Hydroxide / Magnesium Hydroxide / Simethicone
  • Aluminum Hydroxide / Magnesium Hydroxide
  • Aluminum Hydroxide / Magnesium Carbonate
  • Aluminum Hydroxide / Lidocaine / Diphenhydramine / Magnesium Hydroxide / Simethicone Topical
  • Aluminum Hydroxide / Calcium Carbonate / Magnesium Hydroxide / Simethicone
  • Aluminum Hydroxide / Aspirin / Calcium Carbonate / Magnesium Hydroxide
  • Aluminum Hydroxide
  • Aluminum Carbonate
  • Alginic Acid / Aluminum Hydroxide / Magnesium Trisilicate
  • Alginic Acid / Aluminum Hydroxide / Magnesium Carbonate
  • Acetaminophen / Aluminum Hydroxide / Aspirin / Caffeine / Magnesium Hydroxide

Certain drugs should not be used at or around the time of eating food, both with general and specific food types, as interactions may occur. Using alcohol or tobacco with certain medications may also cause interactions to occur.

Using this medication with multivitamins (with minerals) is not recommended, as it can directly affect the amount of Cefdinir within the body. If used at the same time, a medical professional may give you special instructions about the use of this drug with this interaction.

The presence of other existing medical conditions may also affect the level of effectiveness of Cefdinir or may be the cause of other side effects that can cause risk to the patient. Fully inform your doctor of your health record and whether you have any pre-existing medical problems, as this medication can make these illnesses recurrent or worse:

  • Colitis
  • Diabetes
  • Dialysis
  • Liver Disease
  • Nitroprusside Tests
  • Renal Dysfunction
  • Seizure Disorders


Before the patient and the doctor decides for the patient to take Cefdinir as a treatment, there are some things to be considered.

Cefdinir is pregnancy FDA category B. It is not expected to be harmful to an unborn baby, but if the patient is planning on becoming pregnant, their doctor should be informed before the decision to take this medication. It is not known if breast-feeding when taking this medication causes harm, and the doctor may recommend that the patient does not nurse due to possible harm to the infant.

The suspension form of Cefdinir contains sucrose, and as such the patients' doctor should be informed before prescription if they have diabetes.


Cefdinir is recommended to be stored in the medical container that it is dispensed in, kept tightly closed, out of reach of children and pets. This medication should be kept from areas with excess moisture and variable heat (such as bathrooms and kitchens), and kept safe and dry at all times.

If using suspension liquid, it is essential to dispose appropriately of any unused suspension after ten days. Never take antibiotics when instructed not to by a medical professional.

All medications should be disposed of appropriately in a way that does not cause risk to children or pets. It is never advised to flush medications down the toilet; instead, many pharmacies will take back unused medications, and local governments may have recycling schemes through which medications can be disposed of safely and appropriately. Speak to your doctor or pharmacist for more information on what is available.


Cefdinir is a type of antibiotic under the classification cephalosporin antibiotics. It is used in cases of bacterial infection, but will not be of help during viral infection or illness - for example, a cold, the flu, or any other infection caused by a virus.

This medication kills off bacteria or stops it from growing, resulting in the illness ending. If given this medication, though a patient may feel better after several days, it is very important for them to take the whole dose provided. Failing to do so may not kill off the infection, and will result in the bacteria becoming more resistant to antibiotics in the future.

Cefdinir is only available through prescription from a medical professional in powder for suspension and capsule forms. The patient's doctor may advise one or the other depending on requirements, though patients with diabetes should never be prescribed the suspension formula, as it contains sucrose.

This medication is not known to cause harm to an unborn infant, and it is also unknown whether it can cause harm to a nursing baby through breast milk. As such, it is better to get in contact with a doctor to discuss options if you are pregnant or planning to become pregnant.

Last Reviewed:
December 23, 2017
Last Updated:
April 04, 2018