
Package | Dosage | Price | Price per Dose | |
---|---|---|---|---|
Dosage: 250mg | ||||
360 pill | 250mg | AUD393.16 | AUD1.09 | |
180 pill | 250mg | AUD235.04 | AUD1.30 | |
90 pill | 250mg | AUD177.34 | AUD1.97 | |
60 pill | 250mg | AUD136.74 | AUD2.29 | |
30 pill | 250mg | AUD91.86 | AUD3.06 | |
Dosage: 500mg | ||||
360 pill | 500mg | AUD431.63 | AUD1.20 | |
120 pill | 500mg | AUD215.80 | AUD1.79 | |
90 pill | 500mg | AUD196.57 | AUD2.18 | |
60 pill | 500mg | AUD155.97 | AUD2.61 | |
30 pill | 500mg | AUD96.14 | AUD3.21 |
Principen Description
Overview
Principen is the brand name for ampicillin, a penicillin-type antibiotic. It is used to treat certain bacterial infections. In Australia, antibiotics like Principen are prescribed by a doctor and dispensed by a licensed pharmacy. Online pharmacies must follow national rules and require a valid prescription. The product may be supplied as capsules, oral suspension for children, or in a hospital setting as an injectable form.
What it treats
Principen targets infections caused by susceptible bacteria. In everyday practice it is used for ear, throat, sinus and chest infections. It can help with some urinary tract infections and skin infections. Doctors may also prescribe it for certain stomach or abdominal infections. It is not effective against viral illnesses such as colds or flu. A clinician will decide if ampicillin is appropriate for your infection.
How it works
Ampicillin stops bacteria from building their cell walls. Without a strong cell wall, bacteria cannot grow well and are cleared by the body. The medicine does not work against all bacteria, so choosing the right antibiotic matters. Always take it exactly as prescribed to help prevent resistance and side effects.
How to take
Your dosage and duration depend on the infection, age and kidney function. In adults, a clinician may prescribe multiple daily doses. For children, the suspension is commonly used with measured amounts. Take the medicine with a full glass of water and, if advised, with or without food. Complete the full course even if you feel better. Do not stop early without medical advice. If you miss a dose, take it as soon as you remember unless it is nearly time for the next dose.
Possible side effects
Most people tolerate Principen well, but side effects can occur. Common effects include diarrhoea, nausea, and skin rashes. Some people may have mild vomiting or stomach upset. In rare cases there can be more serious allergic reactions. Seek urgent medical advice if you notice swelling of the face or tongue, severe hives, or trouble breathing. Long courses can increase the risk of yeast infections or antibiotic-associated diarrhoea. If you have kidney problems, tell your doctor, as dosing may need adjustment.
Precautions and interactions
Tell your doctor if you are pregnant or breastfeeding. Let them know about any allergy to penicillins or other medicines. Mention current medicines, especially other antibiotics, blood thinners, or gout medicines. Ampicillin can interact with some drugs and affect how they work. Finish the planned course unless a clinician says otherwise. If you have a history of intestinal issues like pseudomembranous colitis, inform your prescriber before starting Principen.
Storage and online pharmacy notes
Store capsules and suspensions in their original packaging, away from heat and moisture. Do not share your medicine with others. When buying online in Australia, ensure the supplier is licensed and requires a prescription. Check the expiry date on arrival and dispose of any unused medicine safely if it is old or no longer needed.
Customer review
“I used Principen for a hard-to-shake throat infection. After a few days the fever eased and I started to feel better. The suspension tasted a bit sweet, which helped my child cope with the dose. Side effects were mild, mostly a bit of stomach upset that passed quickly. It was prescribed after a quick online consult and delivered on time.”