Urgent Care
Specialty Care
Labs
Membership Plans
About Us
Support

LifeMD+

Learn why LifeMD+ can positively change your healthcare experience

Main Menu

No results found. Try a different search.

Get Prescription Cefdinir Online

  • Sold under the brand name Omnicef
  • Treats bacterial infections
  • Prescription medication
4.9
745,000+ Patients Served
What is cefdinir?

Omnicef is a prescription medication used to stop harmful strains of bacteria from penetrating healthy cells. Its active ingredient is cefdinir. Cefdinir is a type of antibiotic that targets bacterial infections. It’s typically used to treat pneumonia, bronchitis, and other bacterial infections (in the skin, ear, sinuses, tonsils, and throat). Omnicef is taken as an oral capsule or in liquid form.

How does cefdinir work?

Cefdinir works through cell wall synthesis — a process antibiotics perform in the body to prevent harmful bacteria from growing. It interferes with how bacteria build their cell walls, making it tough for them to keep their shape and survive, ultimately causing them to die off.

How LifeMD works


step 1

Book an appointment

Schedule a visit with a board-certified doctor at a time that works best for you.

step 2

Get the answers you need

Receive quality care, from diagnosis and prescriptions to lab orders and more.

step 3

Enjoy 24/7 peace of mind

Rest easy knowing that LifeMD is here for all your primary, urgent, and chronic health needs.

Save 90% Off Labs & Prescriptions

Meet our expert


My approach to healthcare is grounded in listening, education, and empowering patients to take an active role in their wellness.

I believe virtual care expands access and allows me to support patients with the same compassion and clinical excellence as an in-person visit. My goal is always to meet patients where they are and guide them toward safe, personalized, sustainable health outcomes.

Dina Whiteaker

APRN

Frequently
Asked
Questions

Who shouldn’t take cefdinir?

Having certain gastrointestinal conditions can worsen side effects while taking Omnicef. Cefdinir may also reduce the effectiveness of hormonal birth control.

Does cefdinir treat UTIs?

Cefdinir can treat various bacterial infections including UTIs (urinary tract infections) caused by harmful bacteria.

How long does it take cefdinir to work?

The effects of cefdinir may be experienced a couple of days after starting treatment. It’s important to continue taking the medication according to instructions from a healthcare provider even if you notice symptoms disappear.

Does cefdinir need to be refrigerated?

Cefdinir does not need to be refrigerated. Store it in a cool, dry environment with minimal moisture.

What food and drink should you not take cefdinir with?

Be sure to avoid eating foods high in iron at the same time that you take cefdinir. It’s also recommended to not consume dairy and other calcium-rich foods and beverages at least two hours before taking cefdinir.

Can you take cefdinir while pregnant?

While there’s not much research showing cefdinir affects pregnancy or breast milk, be sure to tell your healthcare provider if you are pregnant or planning to become pregnant while taking Omnicef (cefdinir).

Can you drink while taking cefdinir?

It’s generally not recommended to drink alcohol while taking medications. However, research does not show any adverse effects connected to drinking alcohol while taking cefdinir.

Can you take cefdinir to avoid getting sick?

Taking medications like cefdinir and other antibiotics before you feel sick can cause antibiotic resistance. This makes it less likely that antibiotics will be effective when you actually feel sick.

What are the most common side effects of cefdinir?

The most common side effects of Omnicef include:

  • Nausea
  • Vomiting
  • Stomach pain
  • Diarrhea
  • Headache
  • Vaginal itching
  • Red stool

Be sure to let your healthcare provider know if you are experiencing any symptoms while taking cefdinir.

How long do cefdinir side effects last?

How long side effects last depends on the severity of the infection. Some side effects like nausea as long as five to 10 days. Be sure to let your healthcare provider know if you have symptoms that persist for that long.

Can LifeMD prescribe cefdinir?

Yes! With LifeMD, you can connect with a licensed healthcare provider from the comfort of your home within an hour. If appropriate, your provider may prescribe cefdinir and send it directly to your local pharmacy.

For even more flexibility, a LifeMD+ membership gives you 24/7 access to care, same-day prescription refills, exclusive wellness perks, and easy access to lab testing — all designed to make managing your health simple and stress-free.

Skip the waiting room. Join LifeMD and take control of your health today.