Cephalosporin Antibiotics
Type of Drug
Cephalosporin Antibiotics
(CEF-uh-loe-SPOR-in)
Brand Names
Cefaclor 91 Raniclor
Cefadroxil Duricef
Cefdinir Omnicef
Cefditoren Pivoxil
Spectracef
Cefixime Suprax
Cefpodoxime Proxetil 91 Vantin
Cefprozil Cefzil
Ceffibuten Cedax
Cefuroxime Axetil 90 Ceftin
Generic Ingredient: Cephalexin 91 Panixine Disperdose Keflex
Prescribed For Bacterial infections.
General Information
These antibiotics are related to cephalosporin C, which is similar to penicillin and is isolated from the Cephalosporium acremonium fungus. Of the more than 20 different antibiotic drugs derived from cephalosporin C, only those that are taken by mouth are included in The Pill Book. Most common infections can be treated with these antibiotics, but they are not interchangeable. Your doctor must select the appropriate antibiotic for a particular infection.
Cautions and Warnings
Do not take cephalosporin antibiotics if you are allergic or sensitive to any of their ingredients. Up to 15% of people allergic to penicillin may also be allergic to cephalosporins. The most common cephalosporin allergic reaction is a hive-like rash condition with redness over large aceas 0 the body. Other sensitivity reac161011S Include general rash, fever, and joint aches or pain. Such reactions generally begin after a few days of taking the antibiotic and resolve within a few days after the antibiotic is stopped.
Prolonged or repeated use of a cephalosporin may lead to a secondary infection not susceptible to the antibiotic.
Occasionally, people taking a cephalosporin develop colitis. Call your doctor if you develop severe diarrhea while taking one of these drugs.
People with poor kidney function may require less medicine to treat their infections. Rarely, people taking a cephalosporin have had a seizure, especially those with kidney disease whose dose was not reduced.
Some injectable cephalosporins have caused blood-clotting problems. This has not occurred in people taking an oral drug.
Rarely, severe anemia occurs in people taking cephalosporin antibiotics. Report any signs of anemia (such as pale skin color, weakness, tiredness, difficulty breathing, and abnormal heart rhythms) to your doctor.
Cefprozil oral suspension contains phenylalanine and cannot be taken by people with phenylketonuria (PKU disease).
Possible Side Effects
Most side effects are mild.
✓ Most common: diarrhea, headache, abdominal pain, constipation, gas, upset stomach, nausea, vomiting, itching, and rash.
✓ Less common: dizziness, tiredness, weakness, tingling in the hands or feet, confusion, appetite loss, changes in taste perception, and genital and anal itching. Colitis may develop.
Cefaclor may cause serum sickness (symptoms include fever, joint pain, and rash). cephalosporins may cause changes in blood cells, kidney problems, liver inflammation, and jaundice, but these side effects are rarely a problem with oral cephalosporins.
Drug Interactions
• Antacids can reduce the amounts of cefaclor, cefdinir, cefditoren pivoxil, and cefpodoxime proxetil in the blood. Do not take antacids within 2 hours of these antibiotics.
• Cimetidine, famotidine, ranitidine, or nizatidine can reduce the effectiveness of cefpodoxime proxetil, cefditoren pivoxil, and cefuroxime axetil—do not combine these drugs.
• Iron and iron-fortified foods may interfere with the absorption of cefdinir. Separate your iron dose from the antibiotic by at least 2 hours. Iron-fortified infant formula does not have this effect.
• Probenecid may increase blood levels of some cephalosporins.
• Potent (loop-type) diuretics can lead to kidney damage if mixed with a cephalosporin antibiotic.
Food Interactions
Generally, cephalosporins may be taken with food or milk if they upset your stomach. Cefditoren pivoxil should be taken with a meal. Food increases the absorption of cefpodoxime proxetil and cefuroxime axetil.
Usual Dose
Ceftibuten
Adult and Child (age 12 and over): 400 mg once a day for 10 days. Child: 4 mg per lb. of body weight, up to 400 mg, once a day.
Cefuroxime Axetil
Adult and Child (age 13 and over): 250-1000 mg a day in 1-2 doses.
Child (age 3 months-12 years): tablets-125-250 mg every
12 hours. Liquid-9-13 mg per lb. of body weight every 12 hours.
Cephalexin
Adult: 1000-4000 mg a day in divided doses, usually 250 mg every 6 hours, or 500 mg every 12 hours.
Child: 11-23 mg per lb. of body weight a day in divided doses. The dose may be increased to 46 mg per lb. of body weight for middle-ear infections.
Overdosage
Common symptoms of overdose are nausea, vomiting, and upset stomach. These can often be treated with milk or an antacid. Cephalosporin overdoses are generally not serious; contact a hospital emergency room or local poison control center for more information. If you seek treatment, ALWAYS bring the prescription bottle or container.
Special Information
Call your doctor if you develop severe abdominal cramps or diarrhea. Stop taking this drug and immediately call your doctor if you experience fever, chest tightness, breathing difficulties, redness, muscle aches, or swelling.
You must take the full course of treatment prescribed—even if you feel better in 2 or 3 days—to obtain the maximum benefit from any antibiotic.
Proper diagnosis is key to the effectiveness of an antibiotic: Do not take any antibiotic without consulting your doctor.
You should be aware that all cephalosporins may cause false results for certain urine tests for sugar. Cefuroxime may cause false results for blood sugar. Diabetics taking cephradine should not change their diet or diabetes medication without consulting their doctor.
If you miss a dose that you take once a day, take it as soon as you remember. If it is almost time for your next dose, take the dose you forgot right away and your next one 10-12 hours later. Then go back to your regular schedule. If you take the medication twice a day, take the dose you forgot right away and the next dose 5-6 hours later. Then go back to your regular schedule. If you take the medication 3 or more times a day, take the dose you missed right away and your next dose 2-4 hours later. Then go back to your regular schedule.
Most cephalosporin liquids must be kept in the refrigerator to maintain their strength. Only cefixime liquid does not require refrigeration. All of the liquid cephalosporins have a very limited shelf life. Do not keep any of these liquids beyond the 10 days-2 weeks specified on the label. Follow your pharmacist’s storage instructions.
Special Populations
Pregnancy/Breast-feeding: These drugs are considered relatively safe during pregnancy, though small amounts pass into the fetus. Little information is available about the newer members of the group. Also, cephalosporins pass more quickly out of the bodies of pregnant women. cephalosporins should only be used during pregnancy after carefully weighing their potential benefits against their risks.
Small amounts of most cephalosporin antibiotics pass into breast milk. Nursing mothers who must take a cephalosporin should use infant formula.
Seniors: Seniors may require a lower dosage if they have reduced kidney function.
Cefaclor
250 mg every 8 hours, or 375-500 mg every 12 hours. 9 mg per lb. of body weight a day, in 2-3 equal doses.
Cefadroxil
1-2 g a day. in 1-2 doses.
13 mg per lb. of body weight a day, in 1-2 doses.
Cefdinir
Adult and Child (age 13 and over): 600 mg a day, in 1-2 doses. Child (age 6 months-12 years): 6.5 mg per lb. of body weight a day in 1-2 doses.
Cefditoren Pivoxil
Adult and Child (age 12 and over): 200-400 mg twice a day for 10 days.
Cefixime
400 mg a day, in 1-2 doses.
3.5 mg per lb. of body weight a day, in 1-2 doses.
cefpodoxime Proxetil
Adult and Child (age 13 and over): 200-400 mg a day, in 1-2 doses. Child (age 5 months-12 years): 5 mg per Yo. of body weight a day
in 1-2 (dvsin. Maximum daily dose for middle-ear infections is
400 mg; 200 mg for sore throat or tonsillitis.
Cefprozil
Adult and Child (age 13 and over): 500-1000 mg a day.
Child (age 6 months-12 years): 7-13 mg per lb. of body weight a day in 1-2 doses.