Tiazac

Generic name: diltiazem

Used for: High blood pressure · Chest pain from heart disease (angina) · 1 more

How do you pay?

How to pay the least

From

$28.60 for 30 capsules delivered ($23.35 plus $5.25 shipping)

Generic diltiazem ER from Cost Plus Drugs, by mail. Pick the strength on your label above for its own price.

  1. Make a free account on costplusdrugs.com. Ask your prescriber to send the prescription there, or Cost Plus Drugs can transfer it.Open Cost Plus Drugs 
  2. Order generic diltiazem ER. It comes by mail.

A regular generic has the same active ingredient as Tiazac, and the FDA requires it to work the same way.

Compare every option

Question
Brand nameTiazac
Authorized genericdiltiazem
Regular genericdiltiazem
What you’d pay
Cash priceAsk the pharmacyUsually the highest price
Cash priceAsk the pharmacyOften less than Tiazac
From$28.60for 30 capsules at Cost Plus Drugs, with shipping
Same as Tiazac?
The original
Same medicine
Same active ingredientFillers and dyes can differ

Brand nameNo maker’s card

We didn’t find a savings card or cash price from Tiazac’s maker. Ask the pharmacy for Tiazac’s cash price. With insurance, ask what your plan charges.

Authorized genericThe NDC to ask for

The same medicine as Tiazac, without the brand name. Give the pharmacy its NDC to get it.

diltiazem

Sold by
  • Oceanside PharmaceuticalsPart of Bausch Health, the company behind Tiazac
Your strength
NDC to ask for
  • 120 mgextended-release capsule
    • 68682-367-9011-digit: 68682-0367-9090 capsules per bottle
  • 180 mgextended-release capsule
    • 68682-368-9011-digit: 68682-0368-9090 capsules per bottle
  • 240 mgextended-release capsule
    • 68682-369-9011-digit: 68682-0369-9090 capsules per bottle
  • 300 mgextended-release capsule
    • 68682-370-9011-digit: 68682-0370-9090 capsules per bottle
  • 360 mgextended-release capsule
    • 68682-371-9011-digit: 68682-0371-9090 capsules per bottle
  • 420 mgextended-release capsule
    • 68682-372-9011-digit: 68682-0372-9090 capsules per bottle

Source: FDA, updated October 30, 2026

What to say at the pharmacy

“Before you fill my Tiazac, can you tell me what I’d pay for the brand, for the authorized generic from Oceanside Pharmaceuticals, and for a regular generic?”

Paying cash? Ask for each one’s cash price. With insurance, ask what your plan charges for each.

Brand and authorized generic labels

Official labels and ingredient lists from DailyMed (U.S. National Library of Medicine).

120 mg extended-release capsule

Same active and inactive ingredients as Tiazac.

BrandTiazac
Authorized genericOceanside Pharmaceuticals
See the ingredients

Active: diltiazem hydrochloride 120 mg

Inactive, on both labels:

  • D&C Red No. 28
  • Ethyl acrylate and methyl methacrylate copolymer
  • FD&C Blue No. 1
  • FD&C Green No. 3
  • FD&C Red No. 40
  • Ferrosoferric oxide
  • Gelatin
  • Hypromellose
  • Magnesium stearate
  • Microcrystalline cellulose
  • Polysorbate 80
  • Povidone
  • Sucrose stearate
  • Talc
  • Titanium dioxide

180 mg extended-release capsule

Same active and inactive ingredients as Tiazac.

BrandTiazac
Authorized genericOceanside Pharmaceuticals
See the ingredients

Active: diltiazem hydrochloride 180 mg

Inactive, on both labels:

  • D&C Red No. 28
  • Ethyl acrylate and methyl methacrylate copolymer
  • FD&C Blue No. 1
  • FD&C Green No. 3
  • FD&C Red No. 40
  • Ferrosoferric oxide
  • Gelatin
  • Hypromellose
  • Magnesium stearate
  • Microcrystalline cellulose
  • Polysorbate 80
  • Povidone
  • Sucrose stearate
  • Talc
  • Titanium dioxide

240 mg extended-release capsule

Same active and inactive ingredients as Tiazac.

BrandTiazac
Authorized genericOceanside Pharmaceuticals
See the ingredients

Active: diltiazem hydrochloride 240 mg

Inactive, on both labels:

  • D&C Red No. 28
  • Ethyl acrylate and methyl methacrylate copolymer
  • FD&C Blue No. 1
  • FD&C Green No. 3
  • FD&C Red No. 40
  • Ferrosoferric oxide
  • Gelatin
  • Hypromellose
  • Magnesium stearate
  • Microcrystalline cellulose
  • Polysorbate 80
  • Povidone
  • Sucrose stearate
  • Talc
  • Titanium dioxide

300 mg extended-release capsule

Same active and inactive ingredients as Tiazac.

BrandTiazac
Authorized genericOceanside Pharmaceuticals
See the ingredients

Active: diltiazem hydrochloride 300 mg

Inactive, on both labels:

  • D&C Red No. 28
  • Ethyl acrylate and methyl methacrylate copolymer
  • FD&C Blue No. 1
  • FD&C Green No. 3
  • FD&C Red No. 40
  • Ferrosoferric oxide
  • Gelatin
  • Hypromellose
  • Magnesium stearate
  • Microcrystalline cellulose
  • Polysorbate 80
  • Povidone
  • Sucrose stearate
  • Talc
  • Titanium dioxide

360 mg extended-release capsule

Same active and inactive ingredients as Tiazac.

BrandTiazac
Authorized genericOceanside Pharmaceuticals
See the ingredients

Active: diltiazem hydrochloride 360 mg

Inactive, on both labels:

  • D&C Red No. 28
  • Ethyl acrylate and methyl methacrylate copolymer
  • FD&C Blue No. 1
  • FD&C Green No. 3
  • FD&C Red No. 40
  • Ferrosoferric oxide
  • Gelatin
  • Hypromellose
  • Magnesium stearate
  • Microcrystalline cellulose
  • Polysorbate 80
  • Povidone
  • Sucrose stearate
  • Talc
  • Titanium dioxide

420 mg extended-release capsule

Same active and inactive ingredients as Tiazac.

BrandTiazac
Authorized genericOceanside Pharmaceuticals
See the ingredients

Active: diltiazem hydrochloride 420 mg

Inactive, on both labels:

  • D&C Red No. 28
  • Ethyl acrylate and methyl methacrylate copolymer
  • FD&C Blue No. 1
  • FD&C Green No. 3
  • FD&C Red No. 40
  • Ferrosoferric oxide
  • Gelatin
  • Hypromellose
  • Magnesium stearate
  • Microcrystalline cellulose
  • Polysorbate 80
  • Povidone
  • Sucrose stearate
  • Talc
  • Titanium dioxide

Regular genericWhere to buy it

Pharmacies’ own cash prices for generic diltiazem, lowest first.

Delivered

From each pharmacy’s own site, read November 2, 2026. Confirm the price before you fill.

About these prices

Prices change, can differ by store and state, and may depend on the strength and how many you take. With insurance, ask what your plan charges; it can be less.

Regular genericWho makes it

One company sells a generic of Tiazac that the FDA rates a substitute. A pharmacy fills whichever one it stocks. To get a certain maker, ask for it by name; most pharmacies can order it in a day or two.

  • Zydus LifesciencesAll 6 strengths

    Has dyes: FD&C Blue No. 1, FD&C Red No. 3, FD&C Red No. 40 · Sold as Tiadylt ER

    How it looks, what’s in it, NDCs

    120 mg Pink cap and pink body, capsule, 18 mm, marked “745”

    PackageNDC
    Bottle of 3068382-745-06
    Bottle of 9068382-745-16
    Bottle of 10068382-745-01
    Bottle of 50068382-745-05
    Bottle of 100068382-745-10

    180 mg Blue cap and white body, capsule, 19 mm, marked “746”

    PackageNDC
    Bottle of 3068382-746-06
    Bottle of 9068382-746-16
    Bottle of 10068382-746-01
    Bottle of 50068382-746-05
    Bottle of 100068382-746-10

    240 mg Pink cap and blue body, capsule, 21 mm, marked “747”

    PackageNDC
    Bottle of 3068382-747-06
    Bottle of 9068382-747-16
    Bottle of 10068382-747-01
    Bottle of 50068382-747-05
    Bottle of 100068382-747-10

    300 mg Pink cap and white body, capsule, 23 mm, marked “748”

    PackageNDC
    Bottle of 3068382-748-06
    Bottle of 9068382-748-16
    Bottle of 10068382-748-01
    Bottle of 50068382-748-05
    Bottle of 100068382-748-10

    360 mg Blue cap and blue body, capsule, 24 mm, marked “749”

    PackageNDC
    Bottle of 3068382-749-06
    Bottle of 9068382-749-16
    Bottle of 10068382-749-01
    Bottle of 50068382-749-05
    Bottle of 100068382-749-10

    420 mg White cap and white body, capsule, 26 mm, marked “750”

    PackageNDC
    Bottle of 3068382-750-06
    Bottle of 9068382-750-16
    Bottle of 10068382-750-01
    Bottle of 50068382-750-05
    Bottle of 100068382-750-10

    Inactive ingredients: ethylcelluloses, FD&C Blue No. 1, FD&C Red No. 3, FD&C Red No. 40, gelatin, hypromelloses, polyethylene glycol 8000, silicon dioxide, sucrose, talc, titanium dioxide

    FDA label

The FDA doesn’t rate Actavis Pharma, Alembic Pharmaceuticals, Apotex, Dr. Reddy’s Laboratories, Glenmark Pharmaceuticals, Ingenus Pharmaceuticals, Mylan Institutional, Mylan Pharmaceuticals, NorthStar Rx, Slate Run Pharmaceuticals and Upsher-Smith Laboratories’s versions of diltiazem a substitute for Tiazac, so a pharmacy can’t swap them in without your prescriber’s OK.

Who sells it: FDA and Medicaid records, updated weekly. Each maker’s page, card and program is from its own site.

What it’s used for

What the FDA label says

Hypertension

Tiazac is indicated for the treatment of hypertension. It may be used alone or in combination with other antihypertensive medications.

Chronic Stable Angina

Tiazac is indicated for the treatment of chronic stable angina.

Source: the FDA label for Tiazac (Bausch Health US, LLC), August 7, 2026. Full label on DailyMed 

Good to know

Prices checked November 2, 2026. Prices change: confirm with the pharmacy before you fill. drugalt.com/drug/tiazac/