1. Strength


2. Quantity

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.
Difference between Brand & Generic?

Buying Desvenlafaxine Online

Buying Desvenlafaxine is easy and affordable with Canada Drug Warehouse. You can save up to 90% on the cost of your medication by buying with us. Order online or call us 7 days a week.

What is Desvenlafaxine?

Desvenlafaxine and the brand name Pristiq are antidepressants which affect brain chemicals which may be unbalanced in people with depression. Pristiq is an SNRI (selective serotonin and norepinephrine reuptake inhibitors) used to treat major depressive disorder.

Always read the patient information and instructions carefully before using this medication.

  • Desvenlafaxine should be taken orally and can be taken with or without food. This medication is typically taken once daily.
  • Swallow desvenlafaxine whole without crushing, chewing or dissolving it as this may release all of the drug at once increasing the risk of side effects. Do not split these tablets unless they are scored and you are advised to by a doctor.
  • Do not change or increase your desvenlafaxine dosage unless advised by a doctor. Using more medication than prescribed will not improve your condition any faster but may increase the chance of side effects.
  • Pristiq ER should be taken regularly. Try to take it at the same time each day. It is important to continue to take this medication even if you feel well. Some conditions may worsen when this drug is stopped. It may take several weeks before you feel the full benefit of this medication.
  • When switching from another antidepressant, your doctor may want to slowly reduce the dose of your previous medication to prevent withdrawal symptoms.
  • Avoid alcohol while taking this medication.


Make sure to tell your doctor and pharmacist:

  • If you have any drug allergies.
  • Which other prescription and non-prescription medications you currently take.
  • Your medical history, especially of bleeding problems, high blood pressure, heart problems, stroke, high cholesterol, kidney disease, liver disease, seizure disorder or low sodium in the blood.
  • Your personal and family history of psychiatric disorders, suicide attempts of glaucoma.
  • If you are pregnant, planning pregnancy or breast feeding.

Also be aware that:

  • Pristiq ER may make you dizzy, drowsy or blur your vision. Do not drive, operate machinery or do any other activity requiring alertness until it can be done safely.
  • Older adults and children may be more sensitive to the side effects of Pristiq ER.
  • This medication may harm an unborn baby or have undesirable effects on a nursing infant.

Desvenlafaxine side effects

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

  • Dizziness or drowsiness.
  • Anxiety.
  • Increased sweating.
  • Nausea, constipation or decreased appetite.
  • Sleeping problems.
  • Decreased sex drive, impotence or difficulty having an orgasm.

Get immediate medical attention if you have signs of serotonin syndrome such as agitation, hallucinations, fever, sweating, shivering, fast heart rate, muscle stiffness, twitching, loss of coordination, nausea, vomiting or diarrhea.

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

  • Any new or worsening symptoms such as mood changes, anxiety, panic attacks, sleeping problems, impulsiveness, irritation, agitation, hostility, aggressiveness, restlessness, hyperactivity, increased depression, or suicidal thoughts or thoughts about hurting yourself.
  • Seizures.
  • Easy bruising or bleeding such as nosebleeds, coughing up blood, bleeding gums or blood in your urine or stools.
  • Vision changes such as blurred vision, eye pain, swelling or seeing halos around lights.
  • Coughing, chest discomfort or breathing problems.
  • Signs of a low level of sodium in the body such as headaches, confusion, severe weakness, memory problems, hallucinations or feeling unsteady.
  • Signs of an allergic reaction such as skin rash, hives, breathing difficulties or swelling of the face, tongue or throat.


Q: How long does it take desvenlafaxine to work?

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

Q: Can I take alcohol with desvenlafaxine?

A: You should avoid alcohol while taking this medication.

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 1-877-204-1506 and a member of our CareTeam will be happy to assist you.

Call 1-877-204-1506
* 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.

Real Customers, Honest Reviews

just wanted to tell you that my wife and I are grateful for y'all. with my wife not being able to work, her meds were out of this world price wise we were struggling. then our Dr told us about y'all so we took a chance. Now she don't skip her med and we can afford them thank you very much to us you are a god sent thank you.
Steven February 21, 2020

Real Customers, Honest Reviews

I could not ask for more. The CDW is so easy to work with. People are friendly,helpful & knowledgeable. Thanks for being there for your customers. Prices are very reasonable. Mary P
Mary February 21, 2020

Real Customers, Honest Reviews

I just received my shipment today! Although it has taken longer than other options, the price value more than makes up for time. Everything that I ordered arrived in excellent shape. Definitely will re-order.
Linda December 17, 2019

Real Customers, Honest Reviews

great customer service. A+++
paul December 9, 2019

Real Customers, Honest Reviews

Jessica fue muy amable , muchas gracias por su paciencia
Adolfo December 6, 2019

Real Customers, Honest Reviews

Very smooth process.
Lawrence December 5, 2019

Real Customers, Honest Reviews

Went well so far. Everyone I talked to were helpful. thanks, Jim
James December 5, 2019

Real Customers, Honest Reviews

Very easy to work with. Great prices.
Cathy December 2, 2019

Real Customers, Honest Reviews

I am very pleased with the service and prices. I was glad they called me to remind to reorder. Thank you so much.
Mark November 23, 2019

Real Customers, Honest Reviews

Have enjoyed the prices of the products my husband and I receive from you...I do wish there was a savings on some other ones however...Our income takes a big hit on what our Doctors want us to take...Thank you for what you are able to do for us thus far though...
Sharon November 11, 2019
Read All Reviews
Write a Review