Antibiotics Antibiotics

Antibiotic tablets, capsules and eye drops for bacterial infections, grouped by class: amoxicillin and Augmentin, azithromycin, cephalosporins, ciprofloxacin, doxycycline, nitrofurantoin, metronidazole and more.

Advent DT

Amoxicillin, Clavulanic Acid

400/57mg

Advent DT is a 400/57mg dispersible tablet of amoxicillin with clavulanic acid, an antibiotic pair used for bacterial infections of the chest, ears, sinuses, skin and urinary tract.

from $2.13 / tablet View

Amoxicillin

Amoxicillin

250/500mg

Amoxicillin tablets in 250mg and 500mg, a penicillin-type antibiotic for bacterial chest, ear, throat, skin and urinary infections, sold in packs from 30 to 360 tablets.

from $0.32 / tablet View

Amoxil

Amoxicillin

250/500/625/1000mg

Amoxil is amoxicillin, a penicillin antibiotic for bacterial chest, skin and urinary tract infections, sold as 250mg, 500mg, 625mg and 1000mg packs.

from $0.36 / capsule View

Augmentin

Amoxicillin, Clavulanic Acid

250/125/500/125/750/250/875/125mg

Augmentin is a generic amoxicillin and clavulanate tablet, a penicillin antibiotic for bacterial chest, sinus, ear, skin and urinary infections, offered in four strengths.

from $1.62 / tablet View

Avelox

Moxifloxacin

400mg

Avelox is a 400mg moxifloxacin tablet taken once daily for bacterial infections of the sinuses, chest, skin and abdomen, stocked in packs of 10, 20 and 30.

from $6.63 / tablet View

Azithromycin

Azithromycin

250/500/1000mg

Azithromycin tablets in 250mg, 500mg and 1000mg, a macrolide antibiotic for bacterial chest, throat, ear and skin infections, in packs from 20 to 360 tablets.

from $0.78 / tablet View

Bactrim

Sulfamethoxazole, Trimethoprim

400/80/800/160mg

Bactrim is generic sulfamethoxazole with trimethoprim, a tablet antibiotic for urinary tract and other bacterial infections, offered in 400/80mg and 800/160mg strengths.

from $0.34 / tablet View

Cefadroxil

Cefadroxil

250/500mg

Cefadroxil capsules in 250mg and 500mg strengths: a cephalosporin antibiotic for urinary tract, skin, throat and sinus infections, usually taken once or twice a day.

from $0.42 / capsule View

Cefixime

Cefixime

100/200mg

Cefixime 100mg and 200mg capsules, used to manage bacterial infections. A third-generation cephalosporin.

from $2.18 / capsule View

Cefpodoxime

Cefpodoxime

100/200mg

Cefpodoxime 100mg and 200mg tablets, a third-generation cephalosporin antibiotic for bacterial infections of the respiratory tract, skin and urinary tract, in packs from 30 tablets.

from $1.93 / tablet View

Cefuroxime

Cefuroxime

250/500mg

Cefuroxime tablets in 250mg and 500mg strengths, a cephalosporin antibiotic used for chest, urinary tract and skin infections, available in packs of 12 to 92.

from $3.49 / tablet View

Cenmox

Amoxicillin

250/500mg

Cenmox is amoxicillin in 250mg and 500mg capsules, a penicillin antibiotic for bacterial chest, urinary, skin, ear and dental infections. Packs suit a full course.

from $0.18 / capsule View

Cephalexin

Cephalexin

500mg

Cephalexin 500mg tablets are a cephalosporin antibiotic for bacterial chest, skin and urinary tract infections, sold here in packs of 30 to 270 tablets.

from $1.53 / tablet View

Ciloxan

Ciprofloxacin

0.3%

Ciloxan is a 0.3% ciprofloxacin eye drop for bacterial conjunctivitis, sold as bottles of the generic antibiotic in packs of two, four or six.

from $7.79 / bottle View

Cipro

Ciprofloxacin

250/500/750/1000mg

Cipro tablets contain ciprofloxacin, a fluoroquinolone antibiotic used for urinary tract and other bacterial infections, in 250mg, 500mg, 750mg and 1000mg strengths.

from $0.71 / tablet View

Ciprofloxacin

Ciprofloxacin

250/500mg

Ciprofloxacin tablets in 250mg and 500mg, a fluoroquinolone antibiotic used for bacterial infections of the urinary tract, chest, gut, skin, and bones and joints.

from $0.28 / tablet View

Clarithromycin

Clarithromycin

250/500mg

Clarithromycin 250mg and 500mg tablets are a macrolide antibiotic used for bacterial chest, throat, sinus and skin infections, stocked here in packs of 28 or more.

from $2.04 / tablet View

Clindamycin

Clindamycin

150/300mg

Clindamycin capsules are an antibiotic for bacterial infections of the skin, lungs and other organs, available in 150mg and 300mg strengths in packs of 30 capsules or more.

from $2.04 / capsule View

Co-trimoxazole

Sulfamethoxazole, Trimethoprim

400/80/800/160mg

Co-trimoxazole tablets combine sulfamethoxazole with trimethoprim, in 400/80mg and 800/160mg strengths, for urinary tract infections and other bacterial illness.

from $0.39 / tablet View

Doxycycline

Doxycycline

100mg

Doxycycline 100mg tablets, a tetracycline antibiotic taken for bacterial infections and for acne, supplied in packs from 30 to 270 tablets.

from $0.51 / tablet View

Erythromycin

Erythromycin

250/500mg

Erythromycin 250mg and 500mg tablets, used to treat bacterial infections. A macrolide antibiotic.

from $0.42 / tablet View

Flagyl

Metronidazole

200/400mg

Flagyl is metronidazole in 200mg and 400mg tablets, an antibiotic for anaerobic bacterial and protozoal infections, sold in packs of 30 to 360.

from $0.34 / tablet View

Floxin

Ofloxacin

100/200/400mg

Floxin is the tablet brand of ofloxacin, a fluoroquinolone antibiotic for bacterial infections of the chest, urinary tract, prostate, skin and genitals, sold in 100mg, 200mg and 400mg tablets.

from $0.99 / tablet View

Keflex

Cephalexin

250/500mg

Keflex tablets contain cephalexin, a cephalosporin antibiotic for bacterial infections of the throat, chest, skin and urinary tract, in 250mg and 500mg strengths.

from $0.79 / tablet View

Lamprene

Clofazimine

50mg

Lamprene is clofazimine 50mg capsules, an antibiotic used in the multi-drug treatment of leprosy and the skin reactions that can come with it.

from $2.20 / capsule View

Levofloxacin

Levofloxacin

250/500/750mg

Levofloxacin tablets in 250mg, 500mg and 750mg strengths, a fluoroquinolone antibiotic for bacterial chest, sinus, urine, prostate and skin infections, in packs of 30 to 360 tablets.

from $0.64 / tablet View

Macrobid

Nitrofurantoin

50/100mg

Macrobid is a generic nitrofurantoin capsule for bladder infections (cystitis), sold here as 50mg and 100mg capsules in pack sizes from 30 up to 360.

from $0.48 / capsule View

Metronidazole

Metronidazole

200/400mg

Metronidazole 200mg and 400mg tablets, an antibiotic and antiprotozoal for bacterial vaginosis, trichomoniasis and other anaerobic infections, sold here in packs of 30 to 360 tablets.

from $0.22 / tablet View

Minocin

Minocycline

50/100mg

Minocin is minocycline hydrochloride, a tetracycline antibiotic in 50mg and 100mg tablets for moderate to severe acne and bacterial infections, in packs of 15 to 120 tablets.

from $2.63 / tablet View

Minomycin

Minocycline

50/100mg

Minomycin is minocycline, sold as 50mg and 100mg tablets for bacterial infections and for acne and rosacea, in a range of pack sizes.

from $2.40 / tablet View

Myambutol

Ethambutol Hydrochloride

200/400/600/800mg

Myambutol (ethambutol hydrochloride) is a tablet used in tuberculosis treatment, stocked in 200mg, 400mg, 600mg and 800mg strengths and packs of 30 to 360 tablets.

from $0.26 / tablet View

Nitrofurantoin

Nitrofurantoin

50/100mg

Nitrofurantoin 50mg and 100mg tablets, an antibiotic for bladder and other lower urinary tract infections, available in packs from 30 up to 360 tablets.

from $0.49 / tablet View

Ocuflox

Ofloxacin

0.3%

Ocuflox is a 0.3% ofloxacin eye drop in bottles, used to clear bacterial conjunctivitis (a bacterial infection of the eye's surface).

from $7.79 / bottle View

Omnicef

Cefdinir

300mg

Omnicef is a brand name for cefdinir, a cephalosporin antibiotic that comes as 300mg capsules for bacterial chest, sinus, throat and skin infections.

from $3.35 / capsule View

Ornidazole

Ornidazole

500mg

Ornidazole 500mg tablets are an antimicrobial used for amoebic gut and liver infections, giardiasis, trichomoniasis and anaerobic bacterial infections, supplied in packs of 30 to 120.

from $0.98 / tablet View

Rifampin

Rifampin

150/300/450/600mg

Rifampin capsules in four strengths, 150mg, 300mg, 450mg and 600mg, an antibiotic used in tuberculosis treatment and other bacterial infections, in packs of 30 to 180.

from $0.39 / capsule View

Sumycin

Tetracycline

250/500mg

Sumycin is generic tetracycline in 250mg and 500mg capsules, an antibiotic taken for bacterial infections and for acne, available here in several pack sizes.

from $0.25 / capsule View

Terramycin

Oxytetracycline

250mg

Terramycin sold here is generic oxytetracycline 250mg capsules, a tetracycline antibiotic used for bacterial infections, in packs of 60 or 90 capsules.

from $0.40 / capsule View

Tetracycline

Tetracycline

500mg

Tetracycline 500mg capsules are an antibiotic used for acne and for some bacterial chest and urinary tract infections, sold in packs of 60 or 90 capsules.

from $0.51 / capsule View

Tinidazole

Tinidazole

500mg

Tinidazole 500mg tablets treat infections caused by certain parasites and anaerobic bacteria, including trichomoniasis, bacterial vaginosis, giardiasis and amoebiasis.

from $0.55 / tablet View

Trimox

Amoxicillin

250/500mg

Trimox capsules hold amoxicillin 250mg or 500mg, a penicillin antibiotic for bacterial chest, throat, urinary tract and skin infections, in a range of pack sizes.

from $0.58 / capsule View

Vibramycin

Doxycycline

100mg

Vibramycin is a doxycycline 100mg antibiotic tablet used for bacterial infections and acne, sold here in packs of 30 to 360 tablets.

from $1.11 / tablet View

Xifaxan

Rifaximin

200/400/550mg

Xifaxan is rifaximin, a gut-acting antibiotic for bacterial traveller's diarrhoea, irritable bowel syndrome with diarrhoea and liver-related gut problems, in 200mg, 400mg and 550mg tablets.

from $0.71 / tablet View

Zithromax

Azithromycin

100/250/500/1000mg

Zithromax is azithromycin, a macrolide antibiotic for bacterial chest, throat, ear and skin infections, sold as 100mg, 250mg, 500mg and 1000mg tablets in packs from 20.

from $0.43 / tablet View

Zithromax Dispersible

Azithromycin

100mg

Zithromax Dispersible is azithromycin 100mg in tablets that dissolve in water, used for bacterial infections of the chest, throat, ears, skin and genitals.

from $0.45 / tablet View

Zyvox

Linezolid

600mg

Zyvox is linezolid 600mg tablets, an oxazolidinone antibiotic used for serious Gram-positive infections such as MRSA and for infections that have resisted other antibiotics.

from $7.00 / tablet View

Antibiotics act on bacteria only, so they are for chest, sinus, skin, urinary and gut infections with a bacterial cause, not for colds or flu. This page sorts the range by medicine class, which is the quickest way to find the family you are after and to see which strengths and forms are on offer.

Penicillins and amoxicillin combinations

Amoxicillin is the broad everyday penicillin. Amoxicillin itself comes as 250mg and 500mg tablets, and the capsule versions are sold as Amoxil, Cenmox and Trimox. Augmentin adds clavulanate, a partner drug that blocks the enzyme some bacteria use to break amoxicillin down; it is listed for sinusitis and runs from 250mg up to 875mg of amoxicillin per tablet. Advent DT pairs 400mg of amoxicillin with 57mg of clavulanic acid. Penicillin allergy rules all of these out, and a new rash partway through a course is worth treating as a possible allergy. Loose stools are the other common complaint with amoxicillin.

Cephalosporins, macrolides and clindamycin

Cephalosporins are relatives of the penicillins. Cephalexin and Keflex cover skin, chest and urinary infections; Cefadroxil, Cefuroxime, Cefpodoxime, Cefixime and Omnicef (cefdinir) fill in the range as capsules and tablets.

Macrolides are the usual alternative when penicillin does not suit. Azithromycin is listed as 250mg, 500mg and 1000mg tablets and as Zithromax, with Zithromax Dispersible in 100mg. Clarithromycin and Erythromycin come in 250mg and 500mg. Clindamycin capsules (150mg, 300mg) sit alongside them. Azithromycin courses are short, a few days in many cases, which suits people who dislike long schedules. Someone allergic to penicillin can also react to a cephalosporin, so that overlap matters when choosing.

Fluoroquinolones and tetracyclines

Ciprofloxacin and Cipro treat urinary and other infections; Levofloxacin is listed for pneumonia and sinusitis, Avelox (moxifloxacin) for pneumonia and sinus infections, and Floxin is ofloxacin. All of this family carry a known risk of tendon injury. For bacterial conjunctivitis there are 0.3% eye drops: Ciloxan and Ocuflox.

Tetracyclines include Doxycycline and Vibramycin at 100mg, which also treat acne, plus Minocin and Minomycin in 50mg and 100mg. Tetracycline, Sumycin and Terramycin (oxytetracycline) are capsules. Milk, calcium, iron and antacids reduce how much tetracycline is absorbed, so keep them apart from the tablet.

Urinary, gut, tuberculosis and specialist antibiotics

If your problem is a bladder infection, these are the ones to look at. For cystitis, Nitrofurantoin and Macrobid (50mg, 100mg), Co-trimoxazole and Bactrim (both sulfamethoxazole with trimethoprim, 400mg/80mg and 800mg/160mg) are the focused choices.

Metronidazole, Flagyl, Tinidazole and Ornidazole cover anaerobic bacteria and protozoa; alcohol is off the menu during the course and for a couple of days afterwards. Rifaximin and Xifaxan are gut antibiotics for traveller's diarrhoea.

Tuberculosis and leprosy have their own listings: Rifampin, Myambutol (ethambutol) and Lamprene (clofazimine). Zyvox (linezolid, 600mg) is kept for serious infections such as pneumonia and complicated skin infections.

Sources

  1. Antimicrobial resistance - World Health Organization (WHO) — World Health Organization (WHO)
  2. Antibiotic Use and Antimicrobial Resistance Facts - CDC — Centers for Disease Control and Prevention (CDC)
Which antibiotics can I buy online in Hong Kong?

You can buy amoxicillin and generic Amoxil tablets, amoxicillin with clavulanate as generic Augmentin tablets, azithromycin and generic Zithromax tablets, plus generic Ciloxan eye drops for bacterial conjunctivitis. These cover penicillins, macrolides and eye drop forms.

Which amoxicillin and amoxicillin-with-clavulanate forms are listed?

Amoxicillin comes as 250mg and 500mg tablets, with generic Amoxil also available as 250mg to 1000mg capsules. Amoxicillin with clavulanate is generic Augmentin, a combination tablet ranging from 250/125mg to 875/125mg. Both are tablet forms, but the combination adds clavulanate.

How are antibiotics delivered to Hong Kong?

Orders arrive in plain, unbranded packaging. Tracked courier takes 5–9 business days; standard airmail takes 14–21 business days and is untracked. See delivery and ordering details.

Do antibiotics work for colds and flu?

No. Colds and flu are caused by viruses, and an antibiotic has no effect on them. Antibiotics are for infections caused by bacteria, such as bacterial sinusitis, urinary infections or bacterial conjunctivitis, and finishing a course helps stop resistant bacteria surviving.

What is the difference between amoxicillin and Augmentin?

Both contain amoxicillin. Augmentin has clavulanate added, which lets it work against bacteria that make an enzyme to break plain amoxicillin down. That wider reach is why Augmentin is listed for sinusitis as well as general bacterial infections.

Can I drink alcohol with metronidazole?

Avoid it. Alcohol with metronidazole can cause flushing, a pounding heartbeat, nausea and vomiting. Stay off alcohol during the course and for 48 hours after the last tablet; with tinidazole the gap is 72 hours.

Which antibiotics are listed for urinary tract infections?

Nitrofurantoin (Macrobid), trimethoprim and Bactrim are aimed squarely at urinary infections. Cephalexin, cefadroxil and ciprofloxacin are also listed for them, among other uses.