Chat with us, powered by LiveChat Live Chat
Canada Pharmacy Depot Prescription Required
IMPORTANT NOTE: A valid Prescription is required to be mailed or faxed to complete this order. I acknowledge that I will need to be contacted to complete a health profile before my order is shipped.
Available 7 Days a Week

1-877-204-1507

Express shipping

May be available upon request

Lowest Price, Guaranteed

match price or beat it by 10% *

Life-Time Free shipping

Find out if you're eligible!

  • Delivery time is between 8-14 business days.
  • Express shipping may be available upon request

Buy Pentasa (Mesalamine) Online

You can save up to 90% on the cost of Pentasa and other prescription medications when you buy drugs online with Canada Pharmacy Depot. We are a safe, dependable online pharmacy giving customers in the US the opportunity to buy their medication at affordable prices.

What is Pentasa?

Pentasa is a medication used to treat the bowel diseases ulcerative colitis and Crohn disease and to prevent their symptoms from recurring. Pentasa contains mesalamine which works by decreasing the swelling within the colon. Taking mesalamine may help to reduce symptoms including stomach pain, rectal bleeding and diarrhea.

Always read the patient information and instructions carefully before using this medication. Follow your doctor’s directions.

  • Pentasa may be taken with or without food.
  • Swallow mesalamine capsules whole without chewing, crushing or breaking them. If you struggle to swallow this medication whole, you may open the capsule and sprinkle the contents onto yoghurt or applesauce and eaten immediately without chewing.
  • Speak to your doctor if your symptoms do not improve.

Cautions

Make sure to tell your doctor and pharmacist:

  • If you have any drug or other allergies.
  • Which other prescription and non-prescription medications you currently take.
  • Your medical history especially of heart disease, kidney disease, liver disease, stomach blockage, intestinal blockage or pyloric stenosis.
  • If you are pregnant, planning on pregnancy or breast feeding.

Also be aware that:

  • Pentasa may cause unusual test results. Tell any medical testing personnel that you are taking mesalamine.

Mesalamine Side Effects

Common Pentasa side effects may include but are not limited to:

  • Nausea, vomiting or diarrhea.
  • Headaches.

Contact your doctor if you experience any of the following side effects of mesalamine:

  • Worsened symptoms such as bloody diarrhea, fever, increased cramping or increased abdominal pain.
  • Changes to your amount of urine as this may be a sign of kidney problems.
  • Chest pain.
  • Dark urine.
  • Persistent nausea or vomiting.
  • Shortness of breath.
  • Severe stomach or abdominal pain.
  • Jaundice.
  • Signs of an allergic reaction such as hives, difficulty breathing or a swelling of your face, lips or throat.

FAQs

What should I do if I miss a dose of Pentasa?

If you miss a dose of this medication, take it as soon as you remember. If it is almost time for your next dose, then skip your missed dose.

Does Pentasa have a generic alternative?

There is currently no therapeutically equivalent generic alternative to Pentasa 500mg.

Hear From People Like You

Don't just take our word, listen to real customers whose lives have changed for the better.

Real Customers, Trustworthy Reviews

Read what others have to say before you buy — honest reviews from real people.

We have had very good service from the Canada Pharmacy Depot, obtaining a very expensive medication (in the USA) for the very same medication from India for a fraction of the US cost ($488/3mo supply vs $1400/1mo supply). This has been a godsend bc my husband has Parkinson's Disease and takes many medications to manage his condition. It does take longer to get the medication, but you just have to plan ahead for significant savings.

JoyceJanuary 29, 2026

So nice and easy to order and arrange payment by phone...especially for this OLD person who is "computer resistive(illiterate)"

PeterJanuary 25, 2026

I called with the purpose of refilling my order. The person I interacted with was polite, careful, and efficient. Very well organized and fastidious about verifying the details of my order and payment.

CharlesJanuary 22, 2026

The Canadian Depot Pharmacy always updates me on my orders. Easy to use and a big cost savings.

DebbieJanuary 20, 2026

Outstanding customer service and courtesy. Thank you for helping to resolve my issue with my order for Eliquis.

DonnaJanuary 16, 2026

Always excellent and a pleasure!

JosephJanuary 15, 2026

A valid Prescription is required to be mailed or faxed to complete this order. I acknowledge that I will need to be contacted to complete a health profile before my order is shipped.

Your Lowest Price, Guaranteed

Our goal is to bring you the most affordable medication. If you find a lower price advertised by another website or your local pharmacy, we’ll match that price or beat it by 10% of the difference.* Call us at 1-877-204-1507 and a member of our CareTeam will be happy to assist you.

Call 1-877-204-1507
* Some exceptions may apply
Some exceptions may apply. To qualify for price matching, competitors must meet our standards for patient safety. Advertised prices must be for medication of the same type, strength, quantity, and form.