Category- Allopathy
Medicine Highlights
| Uses | 1. To treat throat infections (tonsillitis, pharyngitis) 2. To treat ear infections (otitis media) 3. To treat sinus infections 4. To treat bronchitis and pneumonia 5. To treat urinary tract infections (UTIs) 6. To treat skin and soft tissue infections 7. To treat dental infections |
| Common Side Effects | 1. Nausea 2. Vomiting 3. Diarrhea 4. Stomach pain or upset 5. Headache 6. Mild skin rash or itching |
| Additional Information | This medicine should only be used under medical supervision. |
| Storage | 1. The medicine should be stored at room temperature. 2. Keep away from sunlight and moisture. 3. Keep away from the reach of children |
| How to Take This Medicine | Take this medicine orally with a sip of water. |
BrandName Uses
BrandName is an antibiotic medicine that belongs to the class of penicillin’s. It is used to kill bacteria and treat infections in the following area:
- Throat
- Ear (otitis media)
- Sinus
- Chest
- Urinary tract (UTIs)
- Skin and soft tissue
- Dental
Directions for use
- Take this medicine exactly as prescribed by your doctor, consistently at the same time each day.
- Do not stop taking this medicine without your doctor’s approval, even if you feel better.
- If you miss a dose, take it as soon as you remember, unless it’s close to your next dose; then skip the missed one.
BrandName side effects
More Common
- Nausea
- Vomiting
- Diarrhea
- Stomach pain
- Skin rash
Less common
- Headache or dizziness
- Oral or vaginal fungal infection
How BrandName works
Ampicillin works by preventing bacteria from building their protective outer wall. Without this wall, the bacteria become weak and break apart, which kills them. Cloxacillin also stops bacteria from forming this protective wall. Because of this, this combination can kill certain resistant bacteria and help clear the infection effectively.
Safety Measures and Warning
Allergy/Hypersensitivity
If you are allergic to this medication, inform your doctor as taking this medicine can cause some serious side effects like breathing problems, wheezing, skin rashes, swelling, or serious allergic reactions.
Kidney Problems
If you have severe kidney disease, communicate with your doctor, as the medicine may build up in your body and increase side effects. Dose adjustment may be required.
Liver Problems
Always communicate with your doctor about your past disease history, as liver diseases will reduce the metabolism and can lead to toxicity or side effects.
History of Antibiotic-Associated Diarrhea
Avoid if you previously developed severe diarrhea or any gut infection caused by bad bacteria (i.e. C. difficile) after taking antibiotics, unless your doctor decides it’s necessary.
BrandName Interaction with other Medicines
Avoid taking BrandName with the following medicines, as it may increase or decrease the desired effect, or in worse cases, it could be fatal:
BrandName Interaction with Food Products
Avoid alcohol if it worsens nausea or dizziness. Drink plenty of water to help the body absorb and eliminate the medicine properly.
Storage
- The medicine should be stored at room temperature.
- Keep away from sunlight and moisture.
- Keep away from the reach of children.
BrandName Chemical Structure
IUPAC (International Union of Pure and Applied Chemistry)/ Chemical name
Ampicillin: (2S,5R,6R)-6-[[(2R)-2-amino-2-phenylacetyl]amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid

Cloxacillin: (2S,5R,6R)-6-[[3-(2-chlorophenyl)-5-methyl-1,2-oxazole-4-carbonyl]amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid

Intake routine/cycle
Daily Dose
Take BrandName exactly as your doctor recommends. The dose may change based on your condition and how well you respond. Do not take more than prescribed without consulting your doctor.
Missed Dose
If you forget to take your medicine, take the medication as soon as you remember. If it’s nearly time for your next dose, skip the missed one and continue with your regular schedule. Always consult the doctor before making any changes to your dosage.
Overdose
It is not recommended to take BrandName more than 500 mg per day. Overdose may cause tremors, chest pain, fast or irregular heartbeat, nervousness, dizziness, headache, muscle cramps, or high blood pressure. In case of any of these symptoms, seek immediate medical help.
BrandName Summary
BrandName is an antibiotic combination used to treat bacterial infections of the throat, ear, sinuses, chest, urinary tract, skin, teeth, and bones. Ampicillin kills a wide range of bacteria, while Cloxacillin works especially against staphylococcus bacteria, making the treatment more effective. It helps clear infection by breaking the outer wall of bacteria.
This medicine should be taken exactly as prescribed, and common side effects may include nausea, vomiting, diarrhea, stomach upset, or mild rash. Always complete the full course even if you feel better.
FAQ’s
What is the usual dosage of BrandName?
The usual adult dose is 250 mg Ampicillin + 250 mg cloxacillin, taken 2–3 times daily after food, for 5–7 days or as prescribed by the doctor. The dose for children varies based on age and weight and should be given only on medical advice. Missed doses should not be doubled.
What are the uses of BrandName?
It is an antibiotic combination used to treat bacterial infections, especially those affecting the skin, soft tissues, respiratory tract, bones, and wounds.
What are the side effects of Ampicillin?
Common side effects of Ampicillin include nausea, vomiting, diarrhea, stomach pain, and mild skin rash. Less commonly, it may cause headache or fungal infections. Rare but serious reactions include allergic responses (swelling, itching, breathing difficulty), severe diarrhea, or liver-related problems, which require immediate medical attention.
Is Ampicillin safe to use during pregnancy?
Ampicillin is generally considered safe during pregnancy when prescribed by a doctor. It should be used only if clearly needed and in the recommended dose, as the doctor will weigh the benefits against any possible risks to the mother and baby.
What are the uses of cloxacillin?
Cloxacillin is used to treat bacterial infections, especially skin and soft tissue infections, bone and joint infections, respiratory infections, and wound infections caused by penicillin-resistant bacteria such as Staphylococcus aureus.
Which generation does cloxacillin belong to?
Cloxacillin belongs to the first-generation penicillin group, specifically the penicillinase-resistant (antistaphylococcal) penicillins.
Reference
- PubChem. Cloxacillin [Internet]. Nih.gov. PubChem; 2026 [cited 2026 Jan 30]. Available from
- Cloxacillin: View Uses, Side Effects and Medicines | 1mg [Internet]. 1mg. 2025 [cited 2026 Jan 30]. Available from
- PubChem. Ampicillin [Internet]. Nih.gov. PubChem; 2019. Available from
- Drug Bank. Ampicillin [Internet]. go.drugbank.com. 2005. Available from

Pranathi is a final year Pharm D student at Chalapathi Institute of Pharmaceutical Sciences. She loves learning and applying her knowledge in pharmacy and has a passion for writing, which allows her to express ideas clearly and creatively. She enjoys combining her technical skills with her love for writing and communication to make a meaningful impact. Currently she is working on a research paper about “Consanguineous marriages and its impact on children’s health” which will be published by the end of 2025.