| Ampicillin Sodium | 🇺🇸United States | 10GM BASE/VIAL, 125MG BASE/VIAL, 1GM BASE/VIAL … | injectable | Marketed | Consolidated Pharm |
| Ampicillin Trihydrate | 🇺🇸United States | 250MG BASE, 500MG BASE | capsule | Marketed | Aurobindo Pharma |
| Ampicillin Sodium | 🇺🇸United States | 1GM BASE/VIAL, 2GM BASE/VIAL | powder | Not marketed | Sandoz |
| Ampicillin and SulbactamCombination | 🇺🇸United States | 10GM BASE/VIAL; 5GM BASE/VIAL, 1GM BASE/VIAL; 500MG BASE/VIAL, 2GM BASE/VIAL; 1GM BASE/VIAL | injectable | Marketed | Eugia Pharma Speclts |
| Ampicillina Tillomed | 🇮🇹Italy | | Polvere per soluzione iniettabile/per infusione | Authorised | Tillomed Italia SRL |
| Ampicillina Biopharma | 🇮🇹Italy | | Polvere per soluzione iniettabile | Authorised | Biopharma S.R.L. |
| Ampicillina Ethypharm | 🇮🇹Italy | | Polvere per soluzione iniettabile/per infusione | Authorised | Ethypharm |
| Ampicillin Atb 1000mg | 🇷🇸Serbia | 1000mg | prašak za rastvor za injekciju/infuziju | Authorised | Atb Pharma DOO |
| Ampicillin Trihydrate | 🇺🇸United States | 125MG BASE/5ML, 250MG BASE/5ML | for suspension | Not marketed | Belcher Pharms |
| Ampicillina e Sulbactam IbiCombination | 🇮🇹Italy | | Polvere per soluzione iniettabile | Authorised | Istituto Biochimico Italiano Giovanni Lorenzini S.P.A. |
| Ampicillin for Injection, USP | 🇨🇦Canada | 1 G / VIAL | Powder For Solution | Marketed | Fresenius Kabi Canada LTD |
| Ampicillin for Injection, USP | 🇨🇦Canada | 250 MG / VIAL | Powder For Solution | Marketed | Fresenius Kabi Canada LTD |
| Ampicillin for Injection, USP | 🇨🇦Canada | 2 G / VIAL | Powder For Solution | Marketed | Fresenius Kabi Canada LTD |
| Ampicillin for Injection, USP | 🇨🇦Canada | 500 MG / VIAL | Powder For Solution | Marketed | Fresenius Kabi Canada LTD |
| Ampicillin for Injection, USP | 🇨🇦Canada | 500 MG / VIAL | Powder For Solution | Authorised | Sterimax INC |
| Ampicillin for Injection, USP | 🇨🇦Canada | 1 G / VIAL | Powder For Solution | Authorised | Sterimax INC |
| Ampicillin for Injection, USP | 🇨🇦Canada | 10 G / VIAL | Powder For Solution | Authorised | Sterimax INC |
| Ampicillin for Injection, USP | 🇨🇦Canada | 250 MG / VIAL | Powder For Solution | Authorised | Sterimax INC |
| Ampicillin for Injection, USP | 🇨🇦Canada | 2 G / VIAL | Powder For Solution | Authorised | Sterimax INC |
| Ampicillin Sodium for Injection BP | 🇨🇦Canada | 1 G / VIAL | Powder For Solution | Marketed | Auro Pharma INC |
| Ampicillin Sodium for Injection BP | 🇨🇦Canada | 500 MG / VIAL | Powder For Solution | Marketed | Eugia Pharma INC. |
| Ampicillin Sodium for Injection BP | 🇨🇦Canada | 250 MG / VIAL | Powder For Solution | Marketed | Auro Pharma INC |
| Ampicillin Sodium for Injection BP | 🇨🇦Canada | 500 MG / VIAL | Powder For Solution | Marketed | Auro Pharma INC |
| Ampicillin Sodium for Injection BP | 🇨🇦Canada | 1 G / VIAL | Powder For Solution | Marketed | Eugia Pharma INC. |
| Ampicillin Sodium for Injection BP | 🇨🇦Canada | 2 G / VIAL | Powder For Solution | Marketed | Eugia Pharma INC. |