Safely Buy Tiazac ( Diltiazem ER ) from Canada Prescriptions Plus.

( Top Brand Option )


Prescription Required
Formulation : Extended Release Capsule
Drug Name Dosage Quantity Price Buy Now
Tiazac 120mg 100 $140.39 Add To Cart
Tiazac 180mg 100 $178.77 Add To Cart
Tiazac 240mg 100 $235.84 Add To Cart
Tiazac 300mg 100 $281.79 Add To Cart
Tiazac 360mg 100 $342.39 Add To Cart
Dosage: 120mg
Quantity: 100
Price: $140.39
Dosage: 180mg
Quantity: 100
Price: $178.77
Dosage: 240mg
Quantity: 100
Price: $235.84
Dosage: 300mg
Quantity: 100
Price: $281.79
Dosage: 360mg
Quantity: 100
Price: $342.39

( Affordable Generic Alternatives )

Diltiazem ER

Prescription Required
Formulation : ER Capsule
Drug Name Dosage Quantity Price Buy Now
Diltiazem Er 120mg 100 $73.23 Add To Cart
Diltiazem Er 180mg 100 $83.33 Add To Cart
Diltiazem Er 240mg 100 $93.43 Add To Cart
Diltiazem Er 300mg 100 $108.07 Add To Cart
Diltiazem Er 360mg 100 $79.10 Add To Cart
Diltiazem Er
Dosage: 120mg
Quantity: 100
Price: $73.23
Diltiazem Er
Dosage: 180mg
Quantity: 100
Price: $83.33
Diltiazem Er
Dosage: 240mg
Quantity: 100
Price: $93.43
Diltiazem Er
Dosage: 300mg
Quantity: 100
Price: $108.07
Diltiazem Er
Dosage: 360mg
Quantity: 100
Price: $79.10


Tiazac is a blood pressure medication used to treat hypertension (high blood pressure) and symptoms of chronic stable angina (chest pain).

Diltiazem is a calcium-channel blocker that inhibits large amounts of calcium ions from entering cardiac muscles and vascular smooth muscle. This inhibitory action allows Tiazac to relax these muscles which improves blood flow, reduces heart rate, and peripheral resistance. Thanks to these effects, this medication improves symptoms of hypertension and angina.

Dosage and Administration

The dose of Tiazac that is prescribed will vary depending on the individual and cardiac condition being treated. Follow all directions provided by your healthcare provider and read packaging instructions carefully to ensure the best results. Do not change your dose on you own or use Tiazac for a different length of time than prescribed.

  • Swallow capsules whole, do not crush or chew
  • If you cannot swallow pills, break and sprinkle the capsule contents into a spoonful of applesauce and ingest the mixture right away without chewing. Drink a glass of water after
  • Continue taking Tiazac as prescribed, even if you feel well
  • Check your blood pressure and liver function often during treatment
  • Store at room temperature away from children and pets

To treat hypertension:

  • As monotherapy, most adults start by taking 180 to 240mg of Tiazac once daily
  • Some adults may respond to 120mg taken once a day
  • Adults should not take more than 360mg daily
  • Total antihypertensive effects are usually reached within 2 to 4 weeks of treatment

To treat angina:

  • Most adults start by taking 120 to 180mg once a day
  • Some patients may respond better to doses up to 360mg daily
  • Dose increases should occur over a period of 7 to 14 days

Side Effects

Tiazac may cause some side effects to occur when lowering your blood pressure and improving chest pain. Speak with your healthcare provider for more information regarding any symptoms that you may experience during treatment with this antihypertensive medication.

Common Tiazac side effects:

  • Swelling
  • Infections, flu symptoms
  • Difficulty breathing
  • Headache, dizziness, weakness
  • Slower hear rate
  • Upset stomach, nausea
  • Skin rash

Serious Side Effects

Some more serious adverse reactions may develop during treatment with Tiazac. Stop using this medication ad contact your healthcare provider if you experience any of the following symptoms:

  • Chest pain with fast, slow, or uneven heartbeats
  • Feeling light-headed or faint
  • Heart problems (swelling, rapid gain in weight, shortness of breath)
  • Liver problems (decreased appetite, stomach pain on the upper right side, tiredness, itching, dark urine, clay-coloured stools, jaundice)

Allergic Reactions

Do not take Tiazac if you are allergic to diltiazem or any of the other capsule ingredients. Call your healthcare provider right away if you notice any signs of an allergic reaction and stop using this medication.

Tiazac allergy symptoms may include:

  • Hives
  • Difficulty breathing
  • Swelling of face, lips, tongue, or throat
  • Fever
  • Sore throat
  • Burning eyes, skin pain
  • Red or purple rash
  • Blistering or peeling skin


Do not use Tiazac if you have any of the following conditions:

  • Severely low blood pressure
  • Serious heart condition like sick sinus syndrome or AV block
  • If you have recently suffered a heart attack
  • If you have fluid built up in your lungs

To ensure your safety when taking Tiazac, tell your healthcare provider if you have ever had any of the following:

  • Congestive heart failure or other heart problems
  • Low blood pressure or slow heart rate
  • Liver disease
  • Very fast heartbeats
  • Heart rhythm disorder
  • If you are receiving an intravenous beta-blocker medication

Be careful when driving or performing any hazardous activities when taking Tiazac because the medication may impair your thinking and reactions.

Move slowly when standing from a seated or laying position to avoid becoming dizzy because Tiazac lowers your blood pressure which can cause dizziness.

Tell your healthcare provider if you are pregnant or breastfeeding while taking Tiazac. It is unclear how this medication may affect an unborn or nursing child.

Avoid drinking alcohol during treatment with Tiazac because it can cause an increase in side effects including dangerously low levels of blood pressure.

Some drugs may interact with Tiazac and cause adverse effects. Tell your healthcare provider about all the medicines you take, including over the counter medications, but especially any of the following:

  • Azole antifungal medications
  • Cimetidine
  • Cyclosporine
  • Erythromycin
  • Quinidine
  • Warfarin
  • Phenobarbital
  • Phenytoin
  • Rifampin
  • Benzodiazepine drugs
  • Flecainide
  • Imipramine
  • Propafenone
  • Terfenadine
  • Theophylline
  • St. John’s wort

Form and Strength

This antihypertensive and chest pain medication is available in the form of extended-release capsules. Tiazac capsule strengths:

  • 120mg
  • 180mg
  • 240mg
  • 300mg
  • 360mg

All Tiazac extended-release capsule strengths are available in quantities of 100.


What should you avoid while taking Tiazac?

During treatment with Tiazac, you should avoid drinking alcohol, especially in large amounts, to avoid increasing side effects such as low blood pressure. This is especially important when first starting treatment and after any dosage increases. You should also avoid driving or performing hazardous tasks until you know how this medication will affect you.

What is the best time of day to take Tiazac?

You can take Tiazac at any time of the day, with or without food, but it is often recommended to be taken in the evening before bed. Taking your daily dose at this time may help minimize some side effects while offering h



Additional information

Brand Name:


Scientific Name:

Diltiazem ER, Diltiazem Er

Other Names:

Diltiazem T, Tiazac


120mg, 180mg, 240mg, 300mg, 360mg

Quantities Available:



24hour ER Capsule, Capsule SR, ER Capsule, Extended Release Capsule