| Anti-biotic. | Main use. | Country of origin. | Invented in. |
|---|---|---|---|
| Oxacillin | Penicillin-resistant Staphylococcus aureus. | UK | 1960 |
| methicillin | Staphylococcus aureus, Staphylococcus epidermidis, Streptococcus pyogenes, and Streptococcus pneumoniae. Methicillin is no longer effective against these organisms due to resistance. | UK | 1959 |
| Pivmecillinam | UTI and Salmonella | Denmark | 1972 |
| Oxytetracycline | Acne and Rosacea | USA | 1950 |
| Metronidazole | Bacterial vaginosis. | France | 1950s |
| Flucloxacillin | Ear infections, Skin infection, Bone infections, Heart infections and Chest infections | UK\USA | 1960s |
| Benzylpenicillin | Pneumonia, strep throat, syphilis, necrotizing enterocolitis, diphtheria, gas gangrene, leptospirosis, cellulitis, and tetanus. | USA | After 1912 and pre-1960s |
| Phenoxymethylpenicillin | Infections caused by Streptococcus pyogenes | USA | 1948 |
| Amoxicillin | Chest infections, UTI, Sinus infections, Ear infections, Dental infections and H.pylori | UK | 1960s |
| Ampicillin | Sinus infections, Chest infections, UTI and Ear infections | UK | 1961 |
| Erythromycin | Streptococcus, Staphylococcus, Haemophilus and Corynebacterium genera. | Philippines | 1949 |
| Cefalexin | UTI, Skin infections, Chest infections, Throat infections, Ear infections and Dental infections | Australia | 1967 |
| Trimethoprim | Bladder infections | Finland? | 1962 |
| Tetroxoprim | Bladder infections | Spain? | 1979 |
*Sources: Everydayhealth.com, Drugs.com, Patient info.com, NHS.uk, Webmd.com and Wikipedia.