Zinnat and Suprax are two cephalosporin antibiotics. The first contains cefuroxime and the second contains cefixime. Both are prescribed only for bacterial infections that a doctor has identified. Neither treats the common cold, influenza, or any other viral infection. If one of them has been prescribed for you, take it exactly as written and complete the course. Consult your doctor if your symptoms do not improve or if severe diarrhea develops.
What are Zinnat and Suprax, and what do they have in common?
Zinnat and Suprax are brand names of antibiotics from the cephalosporin class (cephalosporin antibiotics). These drugs work by killing bacteria [2]. The active ingredient in Zinnat is cefuroxime axetil, and in Suprax it is cefixime [2].
Zinnat is available in Jordan as 500 mg tablets. You can view its drug profile at Drug Directory: Zinnat (cefuroxime axetil). Suprax comes in several forms, including tablets, chewable tablets, capsules, and oral suspension [2].
The two drugs are not interchangeable. Each has its own indications and method of use. Even among the forms of cefixime, absorption differs, so a doctor may need to adjust the dose when switching from one form to another [2]. The decision about which of these drugs suits you, or whether you need an antibiotic at all, rests with your doctor after examining you.
When does a doctor prescribe Zinnat and Suprax?
A cephalosporin antibiotic is prescribed when a bacterial infection is suspected, not merely for a fever or a cough. According to the ClinicsJo directory, Zinnat is prescribed for the following conditions:
- Bacterial tonsillitis and pharyngitis.
- Acute sinusitis and otitis media (middle ear infection).
- Exacerbations of chronic bronchitis and mild to moderate community-acquired pneumonia.
- Uncomplicated urinary tract infections and some skin infections.
- Early Lyme disease.
As for Suprax, medical references state that it is used to treat certain bacterial infections. It is sometimes used for sinusitis in people with penicillin allergy, for pneumonia, and for infections that cause severe diarrhea, such as shigellosis and salmonellosis. It is also used for typhoid fever, and it can be given as a single dose to treat gonorrhea [2]. The reference notes that these uses require discussing the risks with your doctor.
Intravenous cefuroxime differs from the tablets. It is usually given intravenously or intramuscularly in a hospital for more serious infections, including bone and joint infections, bloodstream infections, and meningitis [1]. It may also be used before, during, or after surgery to prevent infection [1].
Does an antibiotic help with the common cold and influenza?
No. Medical references explicitly state that antibiotics such as cefuroxime and cefixime do not work against colds, influenza, or other viral infections [1] [2]. Antibiotics target bacteria and have no effect on viruses.
More importantly, using an antibiotic when it is not needed increases the risk of later infections that resist antibiotic treatment [1] [2]. For this reason, your doctor may sometimes tell you that you do not need an antibiotic. This is a sound treatment decision, not a failure of care.
In these cases, treatment usually focuses on relieving symptoms: rest, drinking fluids, and fever reducers when needed. If symptoms worsen or last longer than expected, the doctor will reassess the case to distinguish a viral infection from a bacterial one. Some conditions have their own guidance, including Otitis media in children: when to watch and when to use antibiotics, and Conjunctivitis: when it is contagious and when it needs an antibiotic.
Why should you complete the course even if you feel better?
It is recommended to continue the antibiotic until the end of the prescription, even if you feel better. Stopping early or missing doses may leave the infection incompletely treated, and bacteria may become resistant to antibiotics [1] [2]. You should begin to improve within the first few days. If your symptoms do not improve or get worse, contact your doctor [2].
The Zinnat drug profile in the directory warns that a fever or symptoms that do not improve within 72 hours mean you should return to the doctor for reassessment, not increase the dose on your own. For a broader understanding, read: What happens if I stop taking an antibiotic as soon as I feel better?
If you forget a dose, take it when you remember. If the next dose is almost due, skip the missed dose and continue with your regular schedule. Do not double the dose to make up for a missed one [2]. Do not give your medication to anyone else, as the prescription is specific to your condition [2].
How should Zinnat and Suprax be taken correctly?
Do not change how you take the medication without asking your doctor or pharmacist. Here are the main differences:
| Point | Zinnat (cefuroxime) | Suprax (cefixime) |
|---|---|---|
| Taking with food | Always with food, as it loses an important part of its absorption on an empty stomach | With or without food [2] |
| Frequency | The usual adult dose is twice daily according to the ClinicsJo directory, and the doctor determines it | Every 12 or 24 hours [2] |
| Tablets | Do not crush coated tablets, as they taste very bitter and the coating is functional | Chewable tablets should be chewed well before swallowing, and can be crushed if chewing is difficult [2] |
| Oral suspension | - | Shake well before each use [2] |
| Changing formulation | - | The forms are not interchangeable, and the dose may be adjusted when switching [2] |
The cefixime oral suspension should be stored at room temperature or in the refrigerator, tightly closed, and any leftover should be discarded after 14 days [2]. For children, the dose is based on weight and must be prescribed by a doctor or instructed by a pharmacist. Keep all medications out of children's reach [2].
Antacids and strong acid-reducing medications reduce the absorption of Zinnat, so it is advised to separate them from Zinnat and to take Zinnat with food. Zinnat may enhance the effect of warfarin. Inform your doctor and pharmacist of all medications, vitamins, and herbs you use [2].
Do Zinnat and Suprax interact with penicillin allergy?
This is one of the most important questions to address before taking any cephalosporin. References state that you must inform your doctor or pharmacist of any allergy to a drug or other substance, and describe the symptoms that appeared [1] [2].
According to the ClinicsJo directory, Zinnat is contraindicated in people with a documented allergy to cephalosporins. Those who have previously had a severe penicillin allergy (anaphylaxis) should have their doctor evaluate alternatives, as cross-reactivity is possible, although it is uncommon with newer generations. Do not label yourself or your children as "penicillin-allergic" based on an old rash without medical evaluation.
The references note that Suprax is sometimes used to treat sinusitis in people with penicillin allergy [2]. However, this is a medical decision that depends on the type and severity of the allergy, so do not rely on it on your own. Tell your doctor the type of previous reaction and when it occurred, as this helps them choose the most suitable medication.
Is diarrhea after an antibiotic normal, and when should it be a concern?
Diarrhea and nausea are common side effects and are usually mild [2]. According to the ClinicsJo directory, they can be eased by taking Zinnat with food. Oral or vaginal fungal infections may also appear after the course, as they are known with antibiotics. The references mention vaginal itching among the possible side effects of cefuroxime [1].
However, some symptoms require immediate action:
- Watery or bloody diarrhea with abdominal cramps or fever, during treatment or up to two months or more after stopping it [1] [2].
- Skin rash, itching, hives, or swelling of the face, throat, tongue, or lips, or difficulty swallowing or breathing, or hoarseness [1] [2].
- Peeling skin or blisters, reduced urination, swelling of the legs and feet, or seizures [1].
- Return of fever, sore throat, chills, or other signs of infection [1] [2].
Tell your doctor immediately if any of these occur. The ClinicsJo directory notes that severe, persistent diarrhea after treatment requires review, due to the possibility of pseudomembranous colitis, as with any broad-spectrum antibiotic.
What is the connection between antibiotics and bacterial resistance?
Antimicrobial resistance (AMR) occurs when bacteria, viruses, fungi, or parasites no longer respond to medications, making infections difficult or impossible to treat and increasing the risk of disease spread and worsening [3]. The World Health Organization classifies it as a major global health threat. It is estimated that bacterial resistance was associated with more than 4.7 million deaths worldwide in 2021 [3].
The organization confirms that misuse and overuse of antimicrobials, such as taking them when they are not needed or taking the wrong type, are among the main causes of the problem [3]. Its estimates indicate that one in six laboratory-confirmed bacterial infections worldwide in 2023 was resistant to antibiotics, and that resistance was higher in the South-East Asia and Eastern Mediterranean regions, where one in three reported infections was resistant [3]. Jordan is part of the Eastern Mediterranean region.
The organization notes that resistance to ceftriaxone, another cephalosporin, in gonorrhea-causing bacteria remains low globally but is rising in some areas, threatening the effectiveness of a first-line treatment [3]. Other causes of resistance include poor hygiene and sanitation, inadequate infection control, and limited access to vaccines and diagnostic testing [3]. In practical terms, every antibiotic taken without need uses up part of the effectiveness of these drugs for everyone.
When should you see a doctor, and when should you go to the emergency room?
See your doctor if:
- Your symptoms do not improve or worsen during the first few days of treatment [2].
- Symptoms persist after finishing the medication [2].
- Severe or persistent diarrhea or fungal infections develop.
- You are pregnant, planning to become pregnant, or breastfeeding, or you become pregnant during treatment [2].
- You have kidney disease, liver disease, or colitis, as the doctor may modify the decision or the dose [1] [2].
The references warn that cefuroxime and cefixime may reduce the effectiveness of hormonal contraceptives. Therefore, you need an additional method during treatment, and you should talk to your doctor about alternatives [1] [2].
Call 911 or go to the nearest emergency room if:
- Swelling appears in the face, lips, tongue, or throat, or you have difficulty breathing or swallowing.
- A seizure or loss of consciousness occurs.
- A widespread rash appears with peeling or blisters.
How do you find the right doctor in Jordan?
If you are unsure whether you need an antibiotic, an accurate diagnosis is essential. Many people start with a family physician or general practitioner, who may refer the case to a suitable specialist: an ear, nose, and throat specialist for ear, tonsil, or sinus infections, a pediatrician for young children, a dermatologist for skin infections, or a urologist for urinary infections. Governorates have health centers and maternal and child health centers operated by the Ministry of Health.
ClinicsJo allows you to browse doctors and clinics by specialty and governorate, read profiles, and contact or book appointments where the profile allows it. It does not provide remote consultations or prescriptions. When reviewing any profile, pay attention to:
- The specialty and clinical area of interest, and how suitable it is for your condition or your child's condition.
- The governorate, location, and working hours.
- The available method of contact and booking.
Questions to ask your doctor:
- Is the diagnosis a bacterial or viral infection? And do I actually need an antibiotic?
- How long is the treatment, and how should I take the medication with food?
- What should I do if I forget a dose?
- Which symptoms mean I should return to you or go to the emergency room?
- Does this medication interact with my current medications or my previous allergy?
If you need an examination for a skin infection that may be developing, see Cellulitis: when redness requires urgent antibiotics and The usual duration of antibiotic treatment for cellulitis. There is also Outpatient antibiotic therapy, for cases determined by a doctor. To learn about another drug in the same class, see the profile for Zinnat (Zinacef), cefuroxime axetil.
Can the need for antibiotics be reduced in the first place?
Yes. Preventing infection reduces the need for antibiotics. This is part of the World Health Organization's plan to address resistance, which includes raising awareness, controlling infections, and ensuring appropriate use of antibiotics [3]. At the individual level, hand washing, general hygiene, and receiving recommended vaccinations all help.
The most important things you can do:
- Do not ask your pharmacist or doctor for an antibiotic just because you feel tired or have a cough.
- Do not use leftover old antibiotics at home for a new condition.
- Do not give your medication to anyone, even if their symptoms seem similar [2].
- Dispose of unneeded medications safely, away from children, and do not flush them down the toilet [1] [2].
- Keep a written list of all your medications and bring it to every medical visit [2].
It is also helpful to tell the laboratory and your doctor that you are taking an antibiotic before any test. People with diabetes who test urine sugar need an appropriate type of test while on these two medications, so ask your pharmacist about it [1] [2].
This article is for health education and does not replace a medical examination. Do not start, stop, or change the dose of any antibiotic without consulting your doctor or pharmacist.
Frequently asked questions
Are Zinnat and Suprax the same medication?
No. Zinnat contains cefuroxime axetil and Suprax contains cefixime. Both are cephalosporins, but they have different indications, forms, and methods of use. Neither should be swapped for the other on your own. Your doctor determines the right medication and its dose based on your condition.
Do Zinnat or Suprax help with the common cold and influenza?
No. Antibiotics kill bacteria and have no effect on the viruses that cause colds and influenza. Taking an antibiotic when it is not needed increases the risk of a later infection that resists antibiotics. If your symptoms worsen or last longer than expected, see your doctor to assess whether there is a bacterial infection.
Can I stop the antibiotic when I start to feel better?
No. Complete the course as your doctor prescribed, even if you feel better. Stopping early or missing doses may leave the infection incompletely treated, and the bacteria may become resistant. If your symptoms do not improve within the first few days or get worse, return to your doctor.
Can I take a cephalosporin if I have a penicillin allergy?
It may be possible, but it is a medical decision. Cross-reactivity between penicillin and cephalosporins is possible, although it is uncommon with newer generations. Tell your doctor or pharmacist the type and severity of your previous allergy so they can assess your options, and do not take the medication on your own if your allergy was severe.
What should I do if I get diarrhea while on an antibiotic?
Mild diarrhea is common and may ease when you take the medication with food. Do not stop the medication on your own. However, watery or bloody diarrhea, or diarrhea with cramps and fever, during treatment or weeks or months after it, requires seeing your doctor immediately, as some cases need specific evaluation.
Does an antibiotic affect birth control pills?
Medical references state that cefuroxime and cefixime may reduce the effectiveness of hormonal contraceptives, so an additional method is recommended during treatment. Discuss suitable alternatives with your doctor or pharmacist, and also tell them if you are pregnant or breastfeeding.
Sources and references
- Cefuroxime Injection: MedlinePlus Drug Information — MedlinePlus — U.S. National Library of Medicine. Accessed: 2026-10-26.
- Cefixime: MedlinePlus Drug Information — MedlinePlus — U.S. National Library of Medicine. Accessed: 2026-10-26.
- Antimicrobial resistance — World Health Organization. Accessed: 2026-10-26.