Antibiotics
What are antibiotics, and what should guide a choice?
Antibiotics are a broad family of medicines used against bacterial infections. They do not treat viral illnesses such as colds or flu. Different antibiotic classes act differently and are selected according to the infection, likely bacteria, medical history, and other medicines a patient uses. A prescriber's direction is essential because antibiotics with different active ingredients are not interchangeable.
Which differences matter across antibiotic types?
This category includes established classes with distinct clinical roles: penicillins such as amoxicillin, cephalosporins such as cefixime, tetracyclines such as doxycycline, fluoroquinolones such as ciprofloxacin, nitroimidazoles such as metronidazole, amphenicols such as chloramphenicol, and antitubercular agents such as ethambutol. Some are long-established approaches, while others represent later-developed classes; this describes their place in pharmaceutical history, not a ranking of suitability. The prescribed active ingredient, dosage form, strength, and quantity should match the prescription.
Which antibiotic medicines do we list?
We list seven medicines in this category. The comparison below highlights six representative options by active ingredient, form, confirmed strengths, and starting price. It is designed to help you identify the prescribed medicine and its available strengths, not to compare different active ingredients as substitutes. Our range also includes Suprax chewable tablets.
| Product | Active ingredient | Form | Confirmed strengths | Price from |
|---|---|---|---|---|
| Amoxil | Amoxicillin | Capsule | 250 mg, 500 mg | $30.70 |
| Chloromycetin | Chloramphenicol | Capsule | 500 mg | $52.30 |
| Cipro | Ciprofloxacin | Film-coated tablet | 250 mg, 500 mg, 750 mg | $40.30 |
| Flagyl ER | Metronidazole | Extended-release tablet | 200 mg, 400 mg | $44.00 |
| Myambutol | Ethambutol | Tablet | 200 mg, 400 mg, 600 mg, 800 mg | $34.20 |
| Vibramycin | Doxycycline | Tablet | 100 mg, 200 mg | $34.70 |
What is relevant in the United States?
For the six medicines compared above, amoxicillin, chloramphenicol, ciprofloxacin, metronidazole, ethambutol, and doxycycline are authorized for human use in the United States. The listed forms of Amoxil, Chloromycetin, Cipro, Flagyl ER, Myambutol, and Vibramycin require a prescription. These active-ingredient and prescription classifications do not establish registration of a particular product name, strength, package, or manufacturer.
How do we ship antibiotic orders, and how should they be stored after arrival?
We carefully package orders for routine postal delivery and can dispatch using Express shipping, typically 4-7 days, for $29.99, or Standard shipping, typically 14-21 days, for $14.99. Free shipping is available when your order reaches the applicable threshold shown at checkout. We accept Visa, Mastercard, American Express, Discover, Bitcoin, USDT, Apple Pay, and Google Pay.
Please collect your order promptly after it arrives and follow the labeled storage instructions. For example, Flagyl ER should be stored at 68°F to 77°F in a tightly closed, light-resistant container and protected from light. Chloromycetin should be stored at 68°F to 77°F in a tightly closed, light-resistant container away from moisture. Storage directions vary by medicine, so check the product label for the item you receive.