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Cefdinir

Cefdinir Side Effects

Robert Chad Hakim, PharmD, BCCCPKristianne Hannemann, PharmD
Reviewed by Robert Chad Hakim, PharmD, BCCCP, Kristianne Hannemann, PharmD
Last reviewed on April 1, 2024

The following side effects may get better over time as your body gets used to the medication. Let your healthcare provider know immediately if you continue to experience these symptoms or if they worsen over time.

Common Side Effects

  • Diarrhea (up to 15%)

Less Common Side Effects

Cefdinir serious side effects

Contact your healthcare provider immediately if you experience any of the following.

  • Serious allergic reactions: hives; rash; blisters; swelling of the lips or tongue, difficulty breathing
  • Infectious diarrhea (C. difficile-related diarrhea): fever, nausea, foul-smelling diarrhea, frequent bowel movements (up to 15 times per day)
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When do Cefdinir possible side effects begin and end?
Time passed since treatment started:
M
H
D
W
M
Nausea
Diarrhea
Yeast infection in women

Source: DailyMed

The following Cefdinir side effects have also been reported

Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur:

More common

Diarrhea

Rare

Black, tarry stools

chest pain

chills

cough

fever

painful or difficult urination

shortness of breath

sore throat

sores, ulcers, or white spots on the lips or in the mouth

swollen glands

unusual bleeding or bruising

unusual tiredness or weakness

Incidence not known

Abdominal or stomach cramps or tenderness

back, leg, or stomach pains

bleeding gums

blistering, peeling, or loosening of the skin

bloating

blood in the urine or stools

bloody nose

bloody or cloudy urine

bloody, black, or tarry stools

blue lips, fingernails, or skin

bruising

chest pain or discomfort

clay-colored stools

cold, clammy skin

confusion

coughing or vomiting blood

cracks in the skin

dark-colored urine

diarrhea, watery and severe, which may also be bloody

difficult or troubled breathing

difficulty with breathing or swallowing

dilated neck veins

dizziness

extreme fatigue

fast heartbeat

fast, weak pulse

feeling of discomfort

general body swelling

general tiredness and weakness

headache

heavier menstrual periods

high fever

hives

hoarseness

increased thirst

inflammation of the joints

irregular breathing

irregular heartbeat

irregular, fast or slow, or shallow breathing

itching

joint or muscle pain

light-colored stools

lightheadedness

loss of appetite

loss of consciousness

loss of heat from the body

muscle aches

muscle cramps or spasms

muscle pain or stiffness

nausea or vomiting

noisy breathing

nosebleeds

pain in the ankles or knees

pain or discomfort in the arms, jaw, back, or neck

painful, red lumps under the skin, mostly on the legs

pale skin

persistent bleeding or oozing from puncture sites, mouth, or nose

pinpoint red spots on the skin

problems with bleeding or clotting

puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue

rash

red skin lesions, often with a purple center

red, irritated eyes

red, swollen skin

scaly skin

seizures

severe stomach pain

slow or irregular breathing

sudden decrease in the amount of urine

sweating

swelling of the face, fingers, feet, or lower legs

swollen lymph glands

tightness in the chest

unpleasant breath odor

unusual weight loss

upper right abdominal or stomach pain

vomiting of blood

weight gain

wheezing

yellow eyes or skin

Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

Less common

Itching of the vagina or genital area

pain during sexual intercourse

thick, white vaginal discharge with no odor or with a mild odor

vaginal yeast infection

Rare

Acid or sour stomach

belching

constipation

dry mouth

excess air or gas in the stomach or intestines

full feeling

heartburn

increase in body movements

increased clear or white vaginal discharge

indigestion

lack or loss of strength

passing gas

rash with flat lesions or small raised lesions on the skin

sleepiness or unusual drowsiness

soreness or redness around the fingernails and toenails

stomach discomfort, upset, or pain

unable to sleep

Incidence not known

Burning, dry, or itching eyes

discharge, excessive tearing

redness, pain, or swelling of the eye, eyelid, or inner lining of the eyelid

swelling or inflammation of the mouth

Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.

Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.

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Why trust our experts?

Robert Chad Hakim, PharmD, BCCCP, started his full-time career as a clinical pharmacist at UCLA Health in the general medicine, general cardiology, and ICU units after completing residency in 2016. He also was the preceptor for the general medicine rotation from 2017 to 2021, which was a required rotation for all pharmacy residents.
Kristianne Hannemann, PharmD, is a licensed pharmacist in California. She has been a retail pharmacy manager and staff pharmacist for over 7 years and has contributed drug information content to different health companies.

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