unipen in plastic container
Unipen in Plastic Container (Nafcillin Sodium) is a penicillin-class antibacterial used to treat Cellulitis, Bacterial Endocarditis, Osteomyelitis, Postoperative Complications.
Nafcillin Sodium · by Wyeth Ayerst
Available as a generic: Nafcillin Sodium
Key facts
- Active ingredient
- Nafcillin Sodium
- Drug class
- Penicillin-Class Antibacterial
- Form
- Injectable
- Strength
- Nafcillin Sodium EQ 1GM BASE/VIAL **Federal Register Determination That Product was not Discontinued or Withdrawn for Safety or Effectiveness reasons**
- Type
- Prescription (Rx)
- Brand or generic
- Brand-name
- May treat
- cellulitis, bacterial endocarditis, osteomyelitis
- Manufacturer
- Wyeth Ayerst
- FDA application
- NDA050320
- Availability
- Discontinued (per FDA)
Drug class
May treat (source: NIH RxClass)
- cellulitis
- bacterial endocarditis
- osteomyelitis
- postoperative complications
- respiratory tract infections
- staphylococcal infections
See how Unipen in Plastic Container ranks — best-rated penicillin-class antibacterial for:
Dosage forms
Injectable
The forms currently marketed in the U.S., per the FDA National Drug Code Directory.
Ways to save
Ask for the generic
Same active ingredient, far cheaper. Is there a generic? →
Request a 90-day supply
Bulk fills usually lower the per-dose price vs monthly refills.
Use copay cards
Manufacturer copay cards & patient-assistance programs — especially for brand drugs.
Compare alternatives
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Frequently asked questions
- What does Unipen in Plastic Container treat?
- Unipen in Plastic Container (Nafcillin Sodium) may be used to treat cellulitis, bacterial endocarditis, osteomyelitis, postoperative complications, respiratory tract infections, staphylococcal infections, based on NIH RxClass drug-classification data (conditions a drug may treat — not a verbatim copy of the FDA-approved label). This is general reference, not medical advice.
- Is there a coupon or discount for Unipen in Plastic Container?
- pharmaranks is an independent ratings site, not a pharmacy — we don't issue coupons or sell Unipen in Plastic Container. To pay less, ask your prescriber or pharmacist whether a generic equivalent exists, check the manufacturer's copay/savings card and patient-assistance program, and compare a pharmacy discount card against your insurance copay. Prices vary by pharmacy, insurance, and location, so always confirm at the counter. This is general reference, not medical or financial advice.
- Who makes Unipen in Plastic Container?
- Unipen in Plastic Container is marketed by Wyeth Ayerst. You can see Wyeth Ayerst's full profile, rating, and other products on pharmaranks.
- Is Unipen in Plastic Container a brand-name or generic drug?
- Unipen in Plastic Container is a brand-name product with the active ingredient Nafcillin Sodium. Lower-cost generic equivalents containing Nafcillin Sodium are available — ask your pharmacist.
- Is Unipen in Plastic Container available over the counter?
- No. Unipen in Plastic Container is a prescription (Rx) medication in the US — you need a prescription from a licensed clinician (in person or via telehealth); it isn't sold over the counter. For some conditions there are OTC alternatives — ask your pharmacist.
- What forms does Unipen in Plastic Container come in?
- Unipen in Plastic Container is currently marketed as injectable, per the FDA's National Drug Code Directory.
- What class of drug is Unipen in Plastic Container?
- Unipen in Plastic Container is classified as penicillin-class antibacterial, per the FDA's Established Pharmacologic Class.
- Is Unipen in Plastic Container FDA-registered?
- Unipen in Plastic Container is on record with the U.S. FDA under application number NDA050320. You can verify this on its official FDA label.
Information is sourced from public FDA regulatory data. Provided for general reference only — not medical advice. Always consult a licensed professional and the current prescribing information.
What people report to the FDA about NAFCILLIN SODIUM
The FDA Adverse Event Reporting System (FAERS) collects reports from patients and clinicians. It holds 217 reports naming NAFCILLIN SODIUM — the active ingredient in Unipen in Plastic Container, and the FDA flagged 77% of those reports as serious. The effects reported most often — leaving out reports about overdose, misuse or the condition being treated, which dominate the raw list for common medicines:
- renal failure acute29 reports
- nephritis interstitial14 reports
- blood creatinine increased13 reports
- rash12 reports
- pruritus10 reports
- pyrexia10 reports
- hepatotoxicity9 reports
- diarrhoea7 reports
Read these as a signal, not a rate. A report does not mean NAFCILLIN SODIUM caused the effect — anyone can file one, and many describe people taking several medicines for several conditions. Crucially there is no denominator: FAERS does not record how many people took the drug, so these counts cannot be turned into “X% of patients” — a bigger number often just means a more widely used or more talked-about drug. Duplicates exist, and publicity drives reporting. For what is actually established, read the FDA label.
Source: openFDA drug/event (FAERS), retrieved September 25, 2026.
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