Medicines & Supplements A to Z > Zinnat


Last updated on 19/10/2021.

Overview   |   Dosage   |    Side Effects   |   Precautions  |   Tips  |   Where To Buy  

GENERIC NAME: Cefuroxime


DRUG CLASS: Antibiotics

SUB CLASS: Cephalosporins (Second Generation)

USED FOR: Urinary-tract infections (UTIs), Bacterial otitis media, Acute bacterial exacerbations of chronic bronchitis, Bacterial skin infection, Gonorrhea

– 125mg, 250mg, 500mg (tablets)
– 125mg/5ml (oral suspension)

What is Zinnat for?

Zinnat is a brand product that contains Cefuroxime, which is a type of cephalosporin antibiotic. It works by destroying the bacterial cell walls to kill the bacteria. It is used to treat a variety of bacterial infections, such as urinary-tract infections (UTIs), bacterial otitis media, acute bacterial exacerbations of chronic bronchitis, bacterial skin infection, and gonorrhea.

How to use it?

Zinnat is available as tablets or oral suspension. The usual dose for adults and adolescents (13 years and older) is 250-500 mg twice daily for 7-10 days, depending on the type of infection. 

Usual doses in children (3 months to 12 years) are 20-30 mg/kg/day, and taken twice daily for 10 days.

What are the side effects of Zinnat?

Common side effects of Zinnat include diarrhea, nausea and vomiting, and skin hypersensitivity.

Who should not take Zinnat?

People who are allergic to Cefuroxime, other beta-lactam antibacterial drugs (e.g. penicillins and cephalosporins), or any component of the formulation.

Pharmacist Tips:

– Swallow the tablets whole and do not crush them. People who cannot swallow the tablet whole should receive the oral suspension.
– Shake the oral suspension well before each use, store in the refrigerator, and discard after 10 days.
– Zinnat may lower the effectiveness of oral contraceptives. Take additional contraceptive measures (e.g. condom) while taking this medicine.
– For any antibiotic therapy, it is important to complete the whole course of treatment.

Common dosing schedule:
Zinnat tablets can be taken with or without food, whereas Zinnat oral suspension should be taken with food.

Zinnat should be administered at least 1 hour before or 2 hours after administration of short-acting antacids. 

This schedule is for reference only, adjustments may be made according to individual needs.

Some common medications Zinnat may interact with:
– Antacids
– Proton pump inhibitors, e.g. Omeprazole, Pantoprazole
H2 blockers, e.g. Cimetidine, Famotidine

Please notify your doctor or pharmacist if you are taking the above medication, dosage adjustments might be needed.

Where to buy Zinnat in Hong Kong?

In Hong Kong, Zinnat is a prescription only medicine, and requires a prescription from a doctor to be purchased in a pharmacy. It can also be obtained from doctors. To find a pharmacy near you, refer to the list of pharmacies (“Authorized Sellers of Poisons”) from the Hong Kong Department of Health.

For more information about drug names and ingredients, you can visit Hong Kong’s Drug Office at

Need more information?

For detailed information about the use of Zinnat in children, pregnancy and breastfeeding, and for questions about drug interactions, please check with your pharmacist or doctor.

Disclaimer: our goal is to provide you with the most relevant drug information and common dosage for Hong Kong. This information does not constitute medical advice. For specific treatment recommendations and advice, always discuss with your doctor or pharmacist, and follow the instructions included with your specific medicine.