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Cefadroxil

Cefadroxil Side Effects

Robert Chad Hakim, PharmD, BCCCPCydnee Ng, PharmD
Reviewed by Robert Chad Hakim, PharmD, BCCCP, Cydnee Ng, PharmD
Last reviewed on February 2, 2026

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
  • Indigestion
  • Nausea
  • Vomiting

Less Common Side Effects

  • Itching
  • Joint pain
  • Fever

Cefadroxil serious side effects

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

  • Allergic reactions: hives; rash; blisters; peeling skin; swelling of the lips, tongue, or face; trouble breathing
  • Infectious diarrhea (C. difficile-related diarrhea): fever, nausea, foul-smelling diarrhea, frequent bowel movements (up to 15 times per day)
When do Cefadroxil possible side effects begin and end?
Time passed since treatment started:
M
H
D
W
M
Risk of diarrhea
Risk of nausea/vomiting

Source: DailyMed

The following Cefadroxil 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:

Rare

Black, tarry stools

bleeding gums

blistering, peeling, or loosening of the skin

blood in the urine or stools

chills

clay-colored stools

cough or hoarseness

dark-colored urine

diarrhea

difficulty with moving

feeling of discomfort

fever

fever with or without chills

flushing or redness of the skin

general feeling of tiredness or weakness

headache

inflammation of the joints

itching

joint or muscle pain

light-colored stools

lower back or side pain

muscle aches

muscle pain or stiffness

painful or difficult urination

pinpoint red spots on the skin

rash

red skin lesions, often with a purple center

red, irritated eyes

sore throat

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

stomach pain, continuing

swollen lymph glands

unusual bleeding or bruising

unusually warm skin

vomiting

yellow eyes or skin

Incidence not known

Abdominal or stomach cramps or tenderness

back, leg, or stomach pains

bloating

chest pain

coughing up blood

diarrhea, watery and severe, which may also be bloody

difficulty with breathing or swallowing

dizziness

fast heartbeat

general body swelling

high fever

hives

increased menstrual flow or vaginal bleeding

increased thirst

itching

large, hive-like swelling on the face, eyelids, lips, tongue, throat, hands, legs, feet, or sex organs

loss of appetite

nausea

nosebleeds

pain

pale skin

paralysis

prolonged bleeding from cuts

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

seizures

shortness of breath

sudden decrease in the amount of urine

swollen or painful glands

tightness in the chest

unpleasant breath odor

unusual tiredness or weakness

unusual weight loss

vomiting of blood

wheezing

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:

Rare

Acid or sour stomach

belching

heartburn

indigestion

stomach discomfort, upset, or pain

Incidence not known

Hives or welts

itching of the vagina or genital area

itching or pain of the genital area

pain during sexual intercourse

redness of the skin

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

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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