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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.
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Buy Pristiq ER (Desvenlafaxine ER) Online

Are you looking to buy Pristiq ER and other prescription medications for a fraction of what you usually pay? Buying medications with Canada Pharmacy Depot can save you up to 90% on the cost of Pristiq ER. It’s safe, convenient and quick from a reputable Canadian pharmacy and you can order online or call us 7 days a week.

What is Pristiq ER?

Pristiq ER (desvenlafaxine) is an anti-depressant medication which is used to treat major depressive disorder. Desvenlafaxine is a serotonin-norepinephrine reuptake inhibitor (SNRI) which helps to restore the balance of natural substances serotonin and norepinephrine in the brain. Pristiq ER can improve your mood, energy level and feelings of well-being.

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

  • Pristiq ER should be taken with water either with or without food. Take Pristiq ER at the same time each day.
  • Pristiq ER tablets should be swallowed whole without chewing, crushing or breaking.
  • Your blood pressure will need to be checked regularly when taking this medication.
  • It may take several weeks before your symptoms improve. Continue taking Pristiq ER and do not stop taking this medication without speaking to your doctor.

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, stroke, high blood pressure, high cholesterol, bleeding disorders, blood clotting disorders, liver disease, kidney disease, depression, suicidal thoughts, bipolar disorder, seizures, epilepsy, glaucoma, lung or breathing problems or low levels of sodium in your blood.
  • If you are pregnant or planning pregnancy. Taking Pristiq late in pregnancy can increase the risk of excessive bleeding after giving birth.
  • If you are breast feeding.

Also be aware that:

  • You should not use Pristiq with 7 days before or 14 days after using an MAO inhibitor such as isocarboxazid, linezolid, methylene blue injection, phenelzine, rasagiline, selegiline, or tranylcypromine.
  • Some young people may have suicidal thoughts when initially taking an antidepressant. Stay alert to mood or symptoms changes.
  • You should avoid drinking alcohol while taking this medication.
  • Pristiq is not approved for use in those under 18 years old.

Pristiq ER side effects

Common Pristiq ER side effects may include but are not limited to:

  • Drowsiness or trouble sleeping.
  • Dizziness.
  • Nausea.
  • Dry mouth.
  • Constipation.
  • Loss of appetite or weight loss.
  • Blurred vision
  • Nervousness.
  • Excessive sweating.

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

  • Severe or pounding headache.
  • Easy bruising or bleeding.
  • Shakiness.
  • Changes in sexual activity or decreased interest in sex.
  • Coughing that doesn’t go away.
  • Shortness of breath.
  • Eye pain, swelling or redness, widened pupils or vision changes such as seeing rainbows around lights at night.
  • Chest pain.
  • Black stools or vomit which look like coffee grounds.
  • Seizures.
  • Signs of serotonin syndrome such as severe nausea, severe vomiting or severe diarrhea, unexplained fever, unusual agitation, restlessness, fast heartbeat, hallucinations, loss of coordination or severe dizziness.
  • 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 Pristiq ER?

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.

How long does it take desvenlafaxine to work?

It may take several weeks before you feel the full benefit of this medication. Continue to take it regularly.

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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.

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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.