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What is Venlafaxine?

Venlafaxine is a medication primarily used to treat major depressive disorder, generalized anxiety disorder, panic disorder, and social anxiety disorder. It belongs to a class of medications known as serotonin-norepinephrine reuptake inhibitors (SNRIs). Venlafaxine works by increasing the levels of serotonin and norepinephrine in the brain, which are neurotransmitters involved in regulating mood and anxiety.

Dosage: The dosage of venlafaxine varies depending on the condition being treated. It's typically started at a low dose and gradually increased as tolerated.

Form: Venlafaxine is available in immediate-release tablets, extended-release capsules, and oral suspension.

Timing: It is usually taken once daily with food to help minimize gastrointestinal side effects.

Follow Instructions: Always follow the instructions provided by your healthcare provider or pharmacist.

Avoid Abrupt Discontinuation: It's important not to suddenly stop taking venlafaxine, as it can cause withdrawal symptoms. Gradual tapering under medical supervision is recommended.

Side Effects of Venlafaxine

Common Side Effects: Nausea, headache, dizziness, insomnia, dry mouth, sweating, and constipation are common side effects.

Serious Side Effects: These can include increased blood pressure, suicidal thoughts or behaviors, serotonin syndrome (a potentially life-threatening condition characterized by agitation, hallucinations, fever, sweating, shivering, fast heart rate, muscle stiffness, twitching, loss of coordination, nausea, vomiting, or diarrhea), and withdrawal symptoms if stopped abruptly.

Allergic Reactions: Seek immediate medical attention if you experience symptoms of an allergic reaction, such as rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, or trouble breathing.


Pregnancy and Breastfeeding: Venlafaxine should be used with caution during pregnancy and breastfeeding, as it may harm the fetus or nursing infant.

Interactions: It's important to inform your healthcare provider about all medications you are taking, including over-the-counter drugs and supplements, as venlafaxine can interact with certain medications.

Medical Conditions: Inform your doctor if you have a history of certain medical conditions, such as heart disease, high blood pressure, seizures, bleeding disorders, or liver or kidney problems, as venlafaxine may not be suitable or may require dosage adjustments in these cases.


How long does it take for venlafaxine to work?

It may take several weeks for venlafaxine to reach its full therapeutic effect. It's important to continue taking it as prescribed, even if you don't notice immediate improvements.

Can venlafaxine be taken with food?

Yes, venlafaxine can be taken with food to help minimize gastrointestinal side effects.

What should I do if I miss a dose?

If you miss a dose, take it as soon as you remember. However, if it's almost time for your next dose, skip the missed dose and continue with your regular dosing schedule. Do not double the dose to catch up.

Can venlafaxine cause weight gain?

Weight changes, including weight gain or weight loss, are possible side effects of venlafaxine. However, individual responses may vary.

Is venlafaxine addictive?

Venlafaxine is not considered addictive in the same way as substances like opioids or benzodiazepines. However, abrupt discontinuation can lead to withdrawal symptoms, so it's important to taper off the medication gradually under medical supervision.

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Esther Mae W

November 4, 2022

Excellent service on setting up our account

Robert G

October 27, 2022

Great service! The pills arrived even faster than I expected.

Stephen D

October 14, 2022

Your operators are always courteous and knowledgeable. Very good service.


October 13, 2022

I've been a Canadian Med Center customer for about 6 years now. In all that time there was never once that I considered taking my business elsewhere. They do a great job and the people they contract with are also super.


October 5, 2022

Cheaper and efficient.

Dorothy Serrie S

October 4, 2022

Always appreciate their prompt service but especially appreciate their hanging in there when there was difficulty getting my doctor to renew my prescription!

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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