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Doctor insights on: Cefdinir Vs Amoxicillin For Strep

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How long for Cefdinir to work on Strep in a 2 yr old? Amoxicillin ineffective for two days, switched to cefdinir last night, still very fevered & weak

How long for Cefdinir to work on Strep in a 2 yr old? Amoxicillin ineffective for two days, switched to cefdinir last night, still very fevered & weak

Fever: strep throat is extremely sensitive to antibiotics, weather it is amoxicillin or cefidnir. If your child is not responding, it means that there is something else your child has on top of strep like a viral infection.

Amoxicillin (Definition)

Amoxicillin is in the penicillin class of antibiotics. All penicillins are distinguished by the presence of a beta-lactam ring, and are known to kill bacteria by inhibiting synthesis (production) ...Read more


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Will cefdinir treat strep throat as well as penicillin or amoxicillin?

Will cefdinir treat strep throat as well as penicillin or amoxicillin?

Strep: Nothing is better than penicillin for strep pharyngitis. Is that simple. 2 penicillins: injection is the best (bicillin la), or oral pen vk is good as well.

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Hi my daughter has strep throat its been a week still sick the doctor gave her cefdinir its not working do you think they should gave amoxicillin.

Hi my daughter has strep throat its been a week still sick the doctor gave her cefdinir its not working do you think they should gave amoxicillin.

Should be Better: There are some kids who have a viral infection and strep in their system at the same time.The virus may not respond to the antibiotic. On rare occasions Cefdinir may not work.But before changing medication, you see the pediatrician.

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5 year old has strep throat and Cant get him to take the nasty medicine they prescribed. Cefdirin. They refuse to switch why can't he take amoxicilLin?

5 year old has strep throat and Cant get him to take the nasty medicine they prescribed. Cefdirin. They refuse to switch why can't he take amoxicilLin?

Switch or shot: I see no reason not to switch, and wonder why they would use such a foul tasting and expensive med to start with.If the kid won't take any oral med, a LA Bicillin shot would also work.

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6 yr old had ear infect in oct took amoxicil for 6.5 days instead of 10. Month later got strep took cefdinir for 10days 6 wk later has hives related?

6 yr old had ear infect in oct took amoxicil for 6.5 days instead of 10. Month later got strep took cefdinir for 10days 6 wk later has hives related?

Not likely: The reason hives occurs is not clear, but if hives were a drug reaction to cefdinir, the hives occur during or shortly after (few days) of completing the antibiotic. Sometimes hives can be related to an infection including viral infections and strep throat.

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What is the difference between amoxicillin vs cefdinir?

Different family: Amoxicillin belongs in the penicillin family where as Cefdinir belongs in the cephalosporin family. There is some cross reactivity when it comes to allergies; they both kill bacteria by affecting cell wall, but they are different.

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I wanted to know is it possible to have an allergy to omnicef (cefdinir) but not amoxicillin?

I wanted to know is it possible to have an allergy to omnicef (cefdinir) but not amoxicillin?

Yes: Omnicef (cefdinir) is in a group of antibiotics called cephalosporin's. Amoxicillin is in the penicillin group. While there is some cross allergies to the 2, they are separate chemicals.

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My son was given amoxicillin had hive reaction to it. He was switched to cefdinir. He continues with hives. Does this mean he's also allergic to this?

My son was given amoxicillin had hive reaction to it. He was switched to cefdinir. He continues with hives. Does this mean he's also allergic to this?

MGt: The allergic reaction to Amoxicillin can still be the cause of this rash, but a new drug allergy is also possible. He should be treated with an antihistamine. Is he experiencing any respiratory problems? If so, please see the ED right away. It is important to contact your PCP.

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Right ear is completely closed-diagnosed as sinus infection. AMOXICILLIN 500 mg for 7 days; now CEFDINIR 300 mg for 10. Anything I can do for relief?

Recommendation : In addition to antibiotic you can use OTC meds to help yourself. One of them is Sudafed 12 H or another one: Day and nite Quil . And follow the instructions for 5-6 days. It's really helpful.

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2 yr old had amoxicillin reaction, hives and itchy puffy rash. Doctor perscribed omnicef (cefdinir) in its place. Is this a safe alternative for my daughter?

2 yr old had amoxicillin reaction, hives and itchy puffy rash.  Doctor perscribed omnicef (cefdinir) in its place.  Is this a safe alternative for my daughter?

Probably: Cross reactivity can occur between penicillins and cephalosporins so use this medication cautiously and consider an alternative if appropriate.

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Hello. We have 4 kids, ages 5,3,1.5, and 8weeks. 5 yo and 1.5yo are on Amoxicillin and Cefdiner for ear infections. 3 yo on tobramycin for double pink eye. Now 1.5 yo and 8 week old have same symptoms as 3 yo with pink eye. Is it safe to give them tob

Hello. We have 4 kids, ages 5,3,1.5, and 8weeks.  5 yo and 1.5yo are on Amoxicillin and Cefdiner for ear infections.  3 yo on tobramycin for double pink eye.  Now 1.5 yo and 8 week old have same symptoms as 3 yo with pink eye.  Is it safe to give them tob

Mgt: Conjunctivitis or pink eye is very contagious. I would recommend that your two month old see your pediatrician. At this age infection may spread more easily to other areas and they also may have different susceptibility. Your 18 month old probably has the same infection and can start the Tobramycin drops, but each child should have their own dispenser.

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What is the dosage of amoxicillin i give my granddaughter ? She has strep 5 yrs old 48 lbs

Dosage: She gets a teaspoon twice a day of amoxicillen 200 mg per tsp.

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Whats the correct dosage for amoxicillin and how much a day for my 3 1/2 year old..weighing 37 pounds. She has strep.

Whats the correct dosage for amoxicillin and how much a day for my 3 1/2 year old..weighing 37 pounds. She has strep.

Rx'd by physician?: Was the strep throat formally diagnosed by a physician? Strep should be diagnosed by a physician via a rapid test or culture, you don't want to treat with antibiotics for a viral pharyngitis. The physician would have prescribed the amoxicillin in the dosage that is correct. As a general rule, it is 40 mg/kg per day divided into 2-3 doses for a strep infection. Amount depends on concentration.

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Had strep three weeks ago. Amoxicillin for 10days 500mg twice a day. It's back now. What is best treatment this time?

Had strep three weeks ago. Amoxicillin for 10days 500mg twice a day. It's back now. What is best treatment this time?

Strep throat: i would be concerned that is wasnt strep throat. given that its back i would go to the doctor to culture the back of your tonsils, then start a different antibiotic. since your a breastfeeding F/U with your OB to be placed on an antibiotic that is safe during breast feeding. ideally you need something different than a penicillin or amoxicillin. after they obtain cultures you can taper antibiotics.

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My daughter is 5 put on amoxicillin for strep evn though we're not using it right away can we still put in refrigerator?

? not using ?: Why you are not using a prescribed med is confusing. Yes it should be in the refrigerator. It begins to become ineffective after 2 weeks from when they added liquid if refrigerated & 1 week if at ac room temperature.

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I was recently dx w/Strep F and my doc said it was nothing to worry about and rx for amoxicillin. Read unpleasant things online. Any info appreciated.

What unpleasant: things did you read? It is more likely to cause abscesses and is found more in immunocompromised people,but otherwise is susceptible to antibiotic. As long as you don't have these problems, it should be run of the mill infection treated w/antibiotic. Are you feeling better?

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Hello, I was diagnosed with strep in the ER on December 18, even though strep test was negative and so was culture. I was given amoxicillin and felt b?

Hello, I was diagnosed with strep in the ER on December 18, even though strep test was negative and so was culture. I was given amoxicillin and felt b?

Strep: It is unlikely that you had strep if both tests were negative but Viral pharyngitis can look similar. You should continue supportive care and it should be shel limiting. If no improvement after 10 days follow up with your doctor

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Dr. Gary Sandler
187 doctors shared insights

Cefdinir (Definition)

Cefdinir is a third generation cephalosporin which is a kind of cephalosporin type drug (anti-bacterial ...Read more


Dr. William Singer
181 doctors shared insights

Omnicef (Definition)

Omnicef is a third generation cephalosporin which is a kind of cephalosporin type drug (anti-bacterial ...Read more