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A 65-year-old female asked:

how long does it take for cefdinir to take effect?

1 doctor answer1 doctor weighed in
Dr. Christopher Cirino
Infectious Disease 23 years experience
Prob 3 hours: Pharmokokinetics suggest that the drug has a peak plasma level of 3 hours after undergoing absorption in GI tract. This would suggest that it is active at that point (where drug levels achieve highest levels in blood). It is shortly eliminated after that. If you are wondering this as to why you are not responding - that is another thing .. e.g. viral infection and not bacterial, resistance etc

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Similar questions

A 46-year-old member asked:

Cefdinir side effects?

1 doctor answer3 doctors weighed in
Dr. Martin Raff
Infectious Disease 56 years experience
Minimal: Outside of allergic reactions, which are not unique to cefdinir, none of the cephalosporins have side-effects which are very significant. They include cases of gastrointestinal discomfort with nausea, vomiting and diarrhea and rash as occasional occurrences. Sold as omnicef, it is one of several oral cephalosporins.
A 35-year-old member asked:

Can I take omnicef (cefdinir) and brestfeed?

1 doctor answer4 doctors weighed in
Dr. David Miller
Dr. David Miller answered
Family Medicine 10 years experience
Yes: Omnicef (a brand of the antibiotic cefdinir) is safe to use during pregnancy and is not detected in breast milk.
Dr. David Miller
Dr. David Miller commented
Family Medicine 10 years experience
Provided original answer
You're welcome!!
May 17, 2012
A 36-year-old member asked:

What are some of the side effects of omnicef (cefdinir)?

1 doctor answer1 doctor weighed in
Dr. Alan Ali
Dr. Alan Ali answered
Psychiatry 32 years experience
Omnicef (cefdinir): Nausea, headache, diarrhea, rash.
A 33-year-old member asked:

Omnicef (cefdinir) --what are common uses and side effects?

1 doctor answer2 doctors weighed in
Dr. Colin Kerr
Family Medicine 44 years experience
Omnicef (cefdinir): Omnicef (cefdinir) is a newer cousin of the old antibiotic keflex, which is used to treat primarily staph and strept infections and occasionally for bladder infections. Side effects include upset stomach, possible colitis, skin reactions, and an overgrowth of yeast on the skin or vagina occurring during or after treatment.
A 32-year-old member asked:

What are serious side effects of omnicef (cefdinir) 600mg capsules?

1 doctor answer2 doctors weighed in
Dr. Colin Kerr
Family Medicine 44 years experience
Omnicef (cefdinir): The most serious adverse effects of this antibiotic would be an antibiotic-induced colitis with severe abdominal pain and/or diarrhea, and severe allergic reactions with hives, wheezing, faintness, or shortness of breath.

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Last updated Apr 25, 2019
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