Isoniazid Coupons & Prices

Isoniazid is a generic prescription antibiotic used to treat tuberculosis, a dangerous and potentially fatal bacterial lung infection. Isoniazid works by killing the bacteria responsible for tuberculosis infections. Isoniazid is not available as an over-the-counter medication. The retail p

30 Tablet100mgEdit

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Isoniazid coupon at Rite Aid Pharmacy
$5.09
$ 2.09
  • How is this calculated?

  • Price if you don’t sign up:

    $5.09

  • One-time signup bonus

    -$3.00

  • Price with free signup

    $2.09

  • Signup bonus and member savings are automatically applied to your price when you fill an eligible prescription.

  • Sign up for free
Price with signup$3 off with signupwith signup
Isoniazid coupon at Walgreens Pharmacy
$7.03
$ 4.03
  • How is this calculated?

  • Price if you don’t sign up:

    $7.03

  • One-time signup bonus

    -$3.00

  • Price with free signup

    $4.03

  • Signup bonus and member savings are automatically applied to your price when you fill an eligible prescription.

  • Sign up for free
Price with signup$3 off with signupwith signup

Save an extra $3 on any eligible prescription! Sign up for free

Members can save even more
and it's free to join

Isoniazid coupon at Kroger Pharmacy
$11.50
$ 8.50
  • How is this calculated?

  • Price if you don’t sign up:

    $11.50

  • One-time signup bonus

    -$3.00

  • Price with free signup

    $8.50

  • Signup bonus and member savings are automatically applied to your price when you fill an eligible prescription.

  • Sign up for free
Price with signup$3 off with signupwith signup
Isoniazid coupon at Harris Teeter Pharmacy
$11.50
$ 8.50
  • How is this calculated?

  • Price if you don’t sign up:

    $11.50

  • One-time signup bonus

    -$3.00

  • Price with free signup

    $8.50

  • Signup bonus and member savings are automatically applied to your price when you fill an eligible prescription.

  • Sign up for free
Price with signup$3 off with signupwith signup
Isoniazid coupon at Cvs Pharmacy
$11.99
$ 8.99
  • How is this calculated?

  • Price if you don’t sign up:

    $11.99

  • One-time signup bonus

    -$3.00

  • Price with free signup

    $8.99

  • Signup bonus and member savings are automatically applied to your price when you fill an eligible prescription.

  • Sign up for free
Price with signup$3 off with signupwith signup
Isoniazid coupon at Food Lion Pharmacy
$ 15.43
$19.17
$ 16.17
  • How is this calculated?

  • Price if you don’t sign up:

    $19.17

  • One-time signup bonus

    -$3.00

  • Price with free signup

    $16.17

  • Signup bonus and member savings are automatically applied to your price when you fill an eligible prescription.

  • Sign up for free
Price with signup$3 off with signupwith signup
$19.17
$ 16.17
  • How is this calculated?

  • Price if you don’t sign up:

    $19.17

  • One-time signup bonus

    -$3.00

  • Price with free signup

    $16.17

  • Signup bonus and member savings are automatically applied to your price when you fill an eligible prescription.

  • Sign up for free
Price with signup$3 off with signupwith signup
$ 17.43

About SingleCare Pricing

SingleCare’s prescription prices are based on multiple sources. The prices we publish are our best estimate, but we cannot guarantee that the price we display will exactly match the price you receive at the pharmacy. For an exact price, please contact your pharmacy and provide the BIN/GRP/PCN numbers shown on your SingleCare card.

Any SingleCare bonus savings, including the $3 sign-up bonus, may only be used once.

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About Isoniazid

Isoniazid is a generic prescription antibiotic used to treat tuberculosis, a dangerous and potentially fatal bacterial lung infection. Isoniazid works by killing the bacteria responsible for tuberculosis infections. Isoniazid is not available as an over-the-counter medication. The retail price of Isoniazid is $30.85, but with SingleCare's Isoniazid coupon, it costs $2.09.

Isoniazid Price History & Information

Price History for Isoniazid

30 count, 300mg

Our price history metrics are calculated from aggregate prescription data that we receive from all participating pharmacies. This chart updates daily to show new price fluctuations. If a data point is missing from the chart, it is because we do not have enough data to produce a reliable figure.

Average 12 Month Prices for Isoniazid

30 count, 300mg
PharmacyIsoniazid Retail PriceIsoniazid SingleCare Price
CVS Pharmacy$12.00$11.18
Walmart$14.68$14.14
Walgreens$26.78$7.78
Kroger Pharmacy$10.41$9.66
Rite Aid Pharmacy$20.10$5.10

These prices are based on the last 12 months of SingleCare prescription fill data by major pharmacy. This table updates daily to show the most accurate typical prices by pharmacies. If a data point is missing from the table, it is because we do not have enough data to produce a reliable figure.

About Isoniazid

Isoniazid is a generic prescription antibiotic used to treat tuberculosis, a dangerous and potentially fatal bacterial lung infection. Isoniazid works by killing the bacteria responsible for tuberculosis infections. Isoniazid is not available as an over-the-counter medication. The retail price of Isoniazid is $30.85, but with SingleCare's Isoniazid coupon, it costs $2.09.

Isoniazid FAQs

Medically reviewed by Karen BergerPharm.D.
Licensed Pharmacist

How much does Isoniazid cost without insurance?

Patients can usually expect to pay $30.85 for 30, 300MG Tablet of Isoniazid. Compare this cash price to a SingleCare prescription discount card, $2.09 per 30, 300mg Tablet is all you pay with a SingleCare Isoniazid coupon. From generics to brand name prescription drugs, you can save as much as 80% with a SingleCare savings card at participating pharmacies.

How much does Isoniazid cost with insurance?

The amount of your Isoniazid copay depends on your insurance plan. With SingleCare, Isoniazid costs as little as $2.09 for 30, 300mg Tablet, which may be lower than your insurance copay. Consult with your pharmacist to determine the best value.

Does Medicare cover Isoniazid and how much does it cost?

As a generic, Isoniazid is typically covered by Medicare Part D and Medicare Advantage prescription drug plans. People without Medicare coverage can use a SingleCare Isoniazid coupon instead and lower their cost to as little as $2.09 for 30, 300mg Tablet.

What is the brand name of Isoniazid?

Isoniazid is a generic prescription drug typically sold under its generic name by manufacturers such as WestWard and Sandoz. Isoniazid is also marketed under the brand name Nydrazid. All are FDA-approved prescription drugs used to treat tuberculosis. Search the SingleCare website or app to find information and free coupons for all these medications.

What is Isoniazid?

Isoniazid is a generic antibiotic used to treat tuberculosis, a dangerous lung infection caused by a particular type of bacteria called mycobacteria. Left untreated, tuberculosis can be fatal. 

Isoniazid belongs to a class of antibiotics known as antituberculosis agents. Isoniazid works by killing the bacteria that cause tuberculosis.

Because tuberculosis treatment takes a long time, multiple antituberculosis drugs are used to prevent drug resistance.

Isoniazid is often used to prevent tuberculosis infections in patients with HIV/AIDS.

Before you take Isoniazid, tell your doctor about all of the medical conditions you have as well as all of the medicines you take, including prescription and OTC drugs, vitamins, and supplements.

What are the side effects of Isoniazid?

The most common side effects of Isoniazid are stomach upset, nausea, vomiting, and numbness and tingling. 

The most serious side effect of Isoniazid is severe and even fatal hepatitis (inflammation of the liver). Symptoms of hepatitis include yellowing of the skin and eyes, loss of appetite, weakness, fatigue, and malaise, among others. People taking Isoniazid must have their liver function monitored carefully. Avoid alcohol when taking Isoniazid.

Allergic reactions are rare but include hives, rashes, itching, difficulty breathing, and swelling around the face or mouth. Get emergency treatent immediately if you experience a Isoniazid allergic reaction.

This is not a complete list of side effects. Consult your doctor or healthcare professional for additional information and medical advice regarding other possible side effects or drug interactions.

Medically reviewed by Karen BergerPharm.D.
Licensed Pharmacist

After receiving her doctorate from the University of Pittsburgh School of Pharmacy, Karen Berger, Pharm.D., has worked in both chain and independent community pharmacies. She currently works at an independent pharmacy in New Jersey. Dr. Berger enjoys helping patients understand medical conditions and medications—both in person as a pharmacist, and online as a medical writer and reviewer.

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