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Sildenafil starts at $23.00 per month, while Tadalafil starts at $29.00 per month in Canada. Sildenafil contains sildenafil 25–100mg, while Tadalafil contains tadalafil (generic). Last updated: 2026-02-26.

Head-to-Head Comparison

Sildenafil Tadalafil
Price Range $23–$43 per month $29–$51 per month
Cheapest Pharmacy Costco ($22.69 per month) Costco ($28.79 per month)
Generic Name sildenafil 25–100mg tadalafil (generic)
Route Oral tablet Oral tablet
Category ED ED
ODB Coverage Not Covered Not Covered

Pharmacy Total Breakdown

Pharmacy Sildenafil Tadalafil
Costco $22.69 per month $28.79 per month
Walmart $34.47 per month $41.37 per month
Rexall $39.79 per month $47.59 per month
Shoppers Drug Mart $42.09 per month $50.79 per month

Frequently Asked Questions

Which is cheaper, Sildenafil or Tadalafil?
Sildenafil is generally cheaper, starting at $23.00 per month compared to $29.00 per month for Tadalafil. The lowest price is at Costco ($22.69 per month).
What is the difference between Sildenafil and Tadalafil?
Sildenafil (sildenafil 25–100mg) and Tadalafil (tadalafil (generic)) are different medications in the ed category.
Is Sildenafil or Tadalafil covered by provincial drug plans?
Sildenafil: Not Covered on the Ontario Drug Benefit formulary. Tadalafil: Not Covered on the Ontario Drug Benefit formulary.

Last updated: 2026-02-26

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