Kalydeco (Ivacaftor)

Prescription medicineOnly Available By Prescription

Top brand choice

Strength Pack Size Qty
Strength
150mg
Pack Size
Qty
What if I find a lower price with another pharmacy?

We guarantee the lowest price on all of our prescription products. If you find your medications cheaper at any other recognized licensed mail order pharmacy, we will not only match their price, we will beat it by 25% of the difference. It is our 125% price match guarantee!

Example: If you find a product on Canada Drugs Direct for $50.00 and find the same product for $40.00 at another mail order pharmacy, we will provide you with a $12.50 discount, bringing your total to $37.50.

To get the discount please make sure to mention the price match to the customer service team when they call to collect payment for your order. Or call toll free at 1-888-904-8467 to place the order through the phone.

Terms & Conditions of Program

  • Guaranteed lowest price is only valid at the time of sale.
  • We will only match the current advertised price.
  • Products must be identical and in stock at the time of placing an order with a licensed mail order pharmacy. They must be an online Canadian pharmacy with an address in Canada.
  • Products must be authentic in brand and size (same manufacturer, same country of manufacture, same pack size, same strength and same quantity).
  • Products must be new. We cannot match the price of any used, short expiry or expired product.
  • Price match can only be issued over the phone with our customer service team. Please note at this time we cannot offer price matching for the products Ozempic or Saxenda.
What is a Generic Drug?

A generic drug is a copy of the brand-name drug with the same dosage, safety, strength, quality, consumption method, performance, and intended use. Before generics become available on the market, the generic company must prove it has the same active ingredients as the brand-name drug and works in the same way and in the same amount of time in the body.

The only differences between generics and their brand-name counterparts is that generics are less expensive and may look slightly different (eg. different shape or color), as trademarks laws prevent a generic from looking exactly like the brand-name drug.

Generics are less expensive because generic manufacturers don't have to invest large sums of money to develop a drug. When the brand-name patent expires, generic companies can manufacture a copy of the brand-name and sell it at a substantial discount.

Description

Kalydeco (ivacaftor) is a CFTR potentiator indicated for the treatment of cystic fibrosis (CF) in patients aged 1 month and older who have at least one mutation in the CFTR gene that is responsive to ivacaftor based on clinical and/or in vitro assay data. Ivacaftor enhances the function of the defective CFTR protein at the cell surface by increasing chloride transport across epithelial cells, thereby improving pulmonary function, weight gain, and reducing pulmonary exacerbations. Kalydeco was the first disease-modifying therapy approved for CF targeting the underlying genetic defect rather than just symptoms.

Fact Table

Formula

C24H28N2O3

License

US FDA (2012); EMA

Bioavailability

~35% (increases with high-fat meal)

Legal status

Prescription only

Chemical Name

N-(2,4-di-tert-butyl-5-hydroxyphenyl)-4-oxo-1,4-dihydroquinoline-3-carboxamide

Elimination half-life

~12 hours

Dosage (Strength)

150 mg tablets (taken every 12 hours with fat-containing food)

Pregnancy

Category B – no evidence of risk in humans, but limited data

Brands

Kalydeco (Vertex Pharmaceuticals)

Protein binding

~99%

PubChem CID

16220172

MedlinePlus

a612024

ChEBI

CHEBI:68528

ATC code

R07AX02

DrugBank

DB08820

KEGG

D09738

Routes of administration

Oral

Directions

Kalydeco is administered orally, and the dose varies by age and weight:

  • Adults and children =6 years: 150 mg every 12 hours with fat-containing food
  • Children 1 month to <6 years: weight-based dosing using oral granules or tablets
  • Example: 25–75 mg every 12 hours, adjusted by weight

Tablets must be swallowed whole and not chewed or crushed. Administer with fat-containing meals to enhance absorption (e.g., whole milk, cheese, eggs, avocado). Dose adjustment is required in patients with moderate or severe hepatic impairment and when co-administered with CYP3A inhibitors.

Ingredients

Each film-coated tablet contains:

  • Ivacaftor 150 mg (tablets)
  • Oral granules are available in 25 mg, 50 mg, and 75 mg sachets

Inactive ingredients include:

  • Tablets: hypromellose, PEG, titanium dioxide, and colorants
  • Granules: lactose monohydrate, mannitol, and other excipients

Contraindications

Kalydeco is contraindicated in:

  • Patients with known hypersensitivity to ivacaftor or any component of the formulation

Cautions

Monitor liver function tests (LFTs) prior to initiation and periodically thereafter due to the risk of elevated transaminases. Use caution in patients with hepatic or renal impairment. Cataracts have been reported in pediatric patients; baseline and follow-up ophthalmologic exams are recommended. Avoid use with strong CYP3A inducers (e.g., rifampin, carbamazepine), which may reduce ivacaftor exposure. Dose reduction is required with strong CYP3A inhibitors (e.g., ketoconazole). Not approved for patients with non-responsive CFTR mutations.

Side Effects

Common and potential side effects include:

  • Headache
  • Upper respiratory tract infection
  • Stomach pain
  • Diarrhea
  • Rash
  • Dizziness
  • Elevated liver enzymes
  • Nasopharyngitis
  • Rare: hepatotoxicity, cataracts (especially in children), drug interactions with CYP3A modulators

IMPORTANT NOTE: The information provided above is for general awareness and educational purposes only. It is not intended to diagnose, treat, or replace professional medical or veterinary advice. Always consult your physician, pharmacist, or veterinarian regarding the safety, suitability, and proper use of any medication for yourself or your pet.

product-reviews Product Reviews