Omnicef for Sinusitis User Reviews
Omnicef has an average rating of 5.4 out of 10 from a total of 13 reviews for the treatment of Sinusitis. 38% of reviewers reported a positive experience, while 31% reported a negative experience.
Reviews for Omnicef
- Rano
- August 20, 2018
"I started taking this for a sinus infection. The first 5 days I was fine and just added extra yogurt in my diet to be safe. By day 6 I had a little bit of diarrhea which was expected. It turned into diarrhea every 45 minutes until I had nothing left for the next 24 hours. Then it was like my bowels were being turned inside out and all that came out was black mucus. I immediately stopped the medication. I’ve been about 36 hours without it and things are slowly looking up. But I have had to miss work and other events because of it. My doctor said this was safe for those that are allergic to amoxicillin but apparently not. I do not recommend this to anyone. If you read most other reviews, it’s about the same thing."
- EmmiB-G
- August 5, 2010
"I have taken many, many times for my chronic sinus infections and it seems to be the only thing that ever gets rid of the infection. I do get stomach aches from it, and nausea but it does what it's supposed to."
Frequently asked questions
- Anonymous
- March 25, 2011
"300mg 2 x day for 7 days prescribed for Sinusitis. I think I may have felt like I was getting slightly better the 2nd and 3rd day but after that it went back to the same as before. No adverse side effects, just didn't seem to work."
- jhhar...
- April 10, 2009
"Omnicef was effective in treating my daughter's sinusitis. However, she broke out in hives a day after finishing the medication. Although it is not certain the medicine caused her hives, it is very ironic that they broke out within 24 hours of finishing the antibiotic."
Are you taking this medicine?
- Anonymous
- February 16, 2017
"I took this medicine for ten days. took 300mg twice a day.It was horrible the side effects that I experienced.I had the worse yeast infection and broke out in the worst rash I have ever seen. It would bleed and itched so bad it about drove me crazy.I finally went back to the Dr.Took three month to get it all healed up.They should take this medicine off the market."
- Boots...
- April 25, 2016
"I have been on this for 5 days, sort of working, still have the headache though. I haven't really had any side affects yet. But I was given a 21 day dosage for (2) 300mg capsules. I have had 4 sinus infections since January. Hope it helps get rid of the headache. It has helped with the drainage and coughing though."
- NotGo...
- Taken for less than 1 month
- October 12, 2021
"This medicine made me feel worse than the original symptoms. I usually have a high tolerance for meds, don’t usually get dizzy or feel nauseous ever. But this medicine made me feel as I was suffering from being hung over. I would drive 8 hours later after taking the meds and would feel like I could black out whenever. I would randomly feel nauseous. The headaches were a constant theme. Now that I’ve read the comments I can attribute some of the diarrhea I had to it to. I went back to the dr and was prescribed Doxycycline so I’m on day 4 and I feel better but still suffer from a cough."
- Anonymous
- Taken for less than 1 month
- March 8, 2014
"Worked very well for severe sinus infection."
- surgery...
- January 9, 2012
"Today is day 6 of this medicine and it just isn't working. I would have thought that I would have some kind of relief by now, but not."
- Anonymous
- October 28, 2008
"This medicine works very well. I didn't have a yeast infection nor did I have the upset stomach, which I usually have with antibiotics."
- g8rbait
- July 2, 2008
"Hey it worked for me with no side effects at all"
- Anonymous
- December 21, 2010
"I've only been on it 2 days, but so far so good! I feel much better, cough is gone, and no side effects. Will use again if I need it."
- mayte
- June 20, 2010
"This antibiotic was the best for my sinus infection."
- Anonymous
- April 10, 2009
"I have only taken 2 doses so far. It seems to be working and I don't have all the side effects. I will use it again."
- Nay
- Taken for less than 1 month
- November 7, 2020
"On the third day of taking omnicef I realized I was again constipated which is usually the norm for me but I've noticed more gas and extremely foul odor from my stools that I can't describe."
Reviews may be edited to correct grammar/spelling or to remove inappropriate language and content. Reviews that appear to be created by parties with a vested interest are not published. This information is not intended to endorse any particular medication. While these reviews may be helpful, they are not a substitute for the expertise, knowledge, and judgement of healthcare professionals.
Learn more about Sinusitis
Care guides
Symptoms and treatments
Medicine.com guides (external)
More about Omnicef (cefdinir)
- Check interactions
- Compare alternatives
- Reviews (51)
- Drug images
- Side effects
- Dosage information
- During pregnancy
- Generic availability
- Drug class: third generation cephalosporins
- Breastfeeding
"Fantastic at clearing the sinus infection. I'm on day 4 and it's almost completely gone. The first two days were miraculous. But then, starting day 3... My stomach and intestines are rumbling almost constantly and I'm 'pooping' brown water 5+ times a day. I'm also utterly exhausted and weak, making it virtually impossible to actually do anything. If this gets much worse, I'm going to have to stop using this before the 10-day course runs out."