Ampicillin (Principen/Omnipen) Medicare Coverage

Ampicillin is an antibiotic used to treat many different infections including stomach infections, lung infections, blood stream infections, brain infections and urinary tract infections.

Ampicillin is available in its generic form, though it was once also available as the brand name drugs Totacillin, Omnipen, Penbritin, Principen and Polycillin.

Ampicillin is typically taken multiple times a day and is usually used anywhere from 1-3 weeks or longer. Ampicillin prevents bacteria from forming, which allows your infection to heal.

Ampicillin is typically well tolerated, but it can cause upset stomach, vomiting and diarrhea.

Does Medicare cover Ampicillin?

Yes! 100% of Medicare Advantage plans and Medicare Part D plans cover Ampicillin.¹

• Medicare Advantage plans that offer prescription drug coverage are called Medicare Advantage Prescription Drug Plans (MA-PD). Most Medicare Advantage beneficiaries (88 percent) are enrolled in MA-PDs.²
  
  
• Medicare prescription drugs plans each have their own formulary, or drug list, that details what prescription drugs are covered by the plan and how they are covered.

Drug coverage may vary based on plan availability. You may be able to find Medicare Advantage plan options in your area that cover Ampicillin.

Or call 1-800-557-6059 1-800-557-6059 TTY Users: 711 24/7 to speak with a licensed insurance agent.

You can also compare Part D prescription drug plans available where you live and enroll in a Medicare prescription drug plan online when you visit MyRxPlans.com.

Average costs for Ampicillin with Medicare drug coverage¹

Your copay and deductible costs for any prescription drug can vary depending on what coverage stage you’re in.

Additional information

Ampicillin should be taken at least 30 minutes before or 2 hours after a meal. Take each dose with a full glass of water. Try to not miss doses, and complete the entire regimen of ampicillin to fully heal your infection.

While diarrhea is common while taking antibiotics, a severe form of diarrhea can occur. Let your doctor know if you have very bad stomach pain or cramps, loose stools or bloody stools.

This article is for informational purposes only. It is not healthcare advice, treatment, or diagnosis. It is not an endorsement of or recommendation for this medication. Speak to your doctor or healthcare provider about your specific healthcare needs, including your prescription medications. Only take medication as directed by your doctor.

Coverage and costs of prescription medications will vary by Medicare plan. Not all plans are available in all areas.

Written by Hayden Gharibyar, Pharm.D.