RifampinPrices, Coupons & Savings

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*Based on the difference between the U&C price submitted and the price the patient paid, as of April 2023.

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  2. Rifampin
    Generic for Rifadin
    30 capsules $7.8 USD
    Save $62.70
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Do you need a prescription for rifampin?

Yes, rifampin is only available with a valid physician Rx.

How much is rifampin without Insurance in the US?

Our website gives two competitive savings options to US customers who wish to purchase rifampin, as either a brand or generic, if available. The first is access to medications through our mail-order online pharmacy. The second is by using the Now Patient Rx Advantage Card, which can be used in over 65,000 pharmacies nationwide, across America. If you are insured, then in most cases, the cash price will be significantly cheaper than the copay.

What will my out-of-pocket cost be for rifampin in the US?

There are no out-of-pocket (OOP) costs because we are currently only offering a cash-based option to purchase medications.

Is Now Patient a rifampin savings card?

Yes. Save up to 90% on your rifampin with the FREE Now Patient Rx Advantage card*.
*Based on the difference between the U&C submitted by the pharmacy and the price the patients pay.

Can you handle Rx transfers for home delivery in the US?

Yes. If you use the mail-order online pharmacy option, then we can handle requests by you to have your prescription transferred to our pharmacy for home delivery. We can even help you manage your refills by giving you timely reminders, so you do not run out of your medication.

Is Now Patient a rifampin coupon provider in the US?

No. Now Patient does not provide rifampin coupons or FREE rifampin samples.

Do you accept commercial, Medicare or Medicaid coverage for rifampin in the US?

No. Currently, we only offer cash-based options for purchase, therefore we do not require your insurance benefit details. In the future, our plan is to be able to handle commercial insurance, Medicare and Medicaid including cases where you have multiple health plans that provide benefit coverage (e.g. Medicaid and Commercial). We also anticipate being able to handle more complex scenarios such as using primary insurance combined with a manufacturer copay assistance program.

Does Now Patient work with Medicare?

Our cash-based prices for medications are typically cheaper than Medicare copays. We do not bill Medicare Part D (standalone drug coverage) or Medicare Advantage (combined health and drug coverage). When you purchase your medication from Now Patient, you will be doing so out of your pocket. The spend will not count towards your plan deductibles or gaps.

Does Now Patient work with Commercial Insurance?

Our cash-based prices for medications are typically cheaper than commercial plan copays. We do not bill your commercial plan. When you purchase your medication from Now Patient, you will be doing so out of your pocket. The spend will not count towards your plan deductibles or gaps.

What should you do if you use too much rifampin?


Call your doctor right away or seek immediate medical attention if your symptoms do not improve or they become worse after using rifampin. You can also call 800-222-1222 to reach the American Association of Poison Control Centers or use its online resource if you think you’ve used too much rifampin. But if you have severe symptoms, call 911 (or your local emergency number) immediately or go to the nearest emergency room.


If you think it is an emergency, call 999 or find your nearest A&E
If you need help now, but it’s not an emergency go to 111.nhs.uk or call 111. Alternatively you can speak to one of our pharmacists or use the Now Patient app to make an appointment with your GP.

What should I do if I miss my dose?

There are occasions when people forget to take their medication at correct prescribed times. This may not only have an effect on potentially making the medication less effective but it may also inadvertently lead to taking doses too close together, thereby increasing the risks of side effects.

Click here to find out what to do if you forgot to take your medication

What is generic rifampin?

US brand name of rifampin and manufacturer

Rifampin is FDA-approved in the US under various brand names, including Rifadin, Rimactane, and Rifater. It is manufactured by multiple pharmaceutical companies.

UK brand name of rifampin and manufacturer

Rifampin is available in the UK as Rifampicin.  It is also manufactured by multiple pharmaceutical companies.

Is rifampin available in the UK on the NHS?

Yes, rifampin is available on the NHS in the UK.

Prescription requirement for rifampin

Rifampin is a prescription medication and requires a prescription from a healthcare provider.

Active ingredient of rifampin and mechanism of action

Rifampin contains the active ingredient rifampicin. It is a bactericidal antibiotic that works by inhibiting the synthesis of bacterial RNA, thereby preventing the replication and growth of bacteria. Rifampin is active against a wide range of bacteria, including Mycobacterium tuberculosis, the bacterium that causes tuberculosis.

Uses of rifampin

Rifampin is primarily used in the treatment of tuberculosis (TB) as part of combination therapy. It is also used for the treatment of patients who have certain other bacterial infections, including leprosy, meningococcal disease, and some staphylococcal and streptococcal infections.

Forms of rifampin

Rifampin is available in the form of oral capsules, tablets, and oral suspension. The specific form and strength will depend on the individual patient’s needs and the prescribing healthcare provider’s instructions.

Dosage of rifampin

The dosage of rifampin will vary depending on the specific infection being treated, the patient’s age and weight, and other factors. It is important to follow the dosage instructions provided by your healthcare provider. Rifampin is typically taken once daily on an empty stomach, at least one hour before or two hours after a meal, with a full glass of water.

Precautions and warnings for rifampin

  • Tell your doctor if you have diabetes, liver disease (such as hepatitis), or an HIV infection
  • It may cause certain side effects, including gastrointestinal disturbances, liver toxicity, and changes in urine color (such as orange-red discoloration)
  • Rifampin may also interfere with the effectiveness of hormonal contraceptives, such as birth control pills. Additional or alternative methods of contraception should be used while taking rifampin
  • Rifampin may cause red stains on soft contact lenses if worn during treatment
  • Tell your doctor if you are allergic to other rifamycins (such as rifabutin, rifaximin, or rifapentine) before starting this medication
  • Rifampin passes into breast milk. Speak to your doctor before breast-feeding

Side effects of rifampin

Common side effects of rifampin may include nausea, vomiting, stomach upset, heartburn, loss of appetite, and rash. It may also cause more serious side effects, such as liver problems and allergic reactions. If you experience any concerning or persistent adverse reactions, contact your healthcare provider immediately. Get medical help right away if you have a serious allergic reaction. Symptoms include hives, trouble breathing, shortness of breath, chest pain, swelling of the face, tongue or throat (angioedema), skin rash, and severe skin reactions. Promptly report any adverse effects to a healthcare provider for medical advice.

Interactions with other drugs

Rifampin can interact with numerous medications due to its ability to induce liver enzymes. It may reduce the effectiveness of certain medications, including antacids, anticoagulants such as warfarin, antifungals such as fluconazole, itraconazole and ketoconazole, HIV protease inhibitors such as atazanavir, praziquantel, ritonavir, or saquinavir, chloramphenicol, clarithromycin, cyclosporine, dapsone, doxycycline, contraceptives (birth control pills), isoniazid, theophylline, and rifampin. It is important to inform your healthcare provider about all the prescription drugs, over the counter nonprescription medication, supplements, and vitamins you are taking to avoid potential drug interactions.


  • Rifadin (Rifampin) Prescribing Information – Sanofi.
  • Rifampicin – MedlinePlus.

About Now Patient

Now Patient’s online services are available in the US and UK. We help you manage your prescriptions, doctor appointments, test results, health risks, and a lot more, all in one place for FREE. If you are in the United States, you could enjoy savings using Now Patient’s mail-order pharmacy or use the Now Patient Rx Advantage Card at over 65,000 pharmacies, with savings of up to 90% on popular FDA-approved brand and generic medications like Ozempic, Mounjaro, clopidogrel and lots more. We do not currently handle commercial insurance, Medicare or Medicaid. UK NHS and private prescriptions are delivered FREE of charge across England & Wales by our UK NHS online pharmacy.

Stefano Mirabello Medical Reviewer
Pharmacist / B.Pharm
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