Effexor
Venlafaxine 37.5mg and 75mg, as tablets and prolonged-release capsules, used in the management of major depression and generalised anxiety disorder.
- Category
- Antidepressants
- Active ingredient
- Venlafaxine
- Route
- Oral use
- Form
- Tablet; Prolonged-release capsule, hard
- Strengths
- 37.5 · 75mg
You will receive a quality generic equivalent, depending on stock.
No prescription needed: we place your order for Effexor on your behalf.
- Alternative names
- Venlax; Viepax
- Therapeutic class
- SNRI Antidepressant
- Pharmacological class
- SNRI
- Contraindications
- hypersensitivity to venlafaxine; concurrent MAOI use
- Precautions and warnings
- may increase blood pressure; monitor for suicidal ideation
- Minor side effects
- nausea; dizziness; insomnia
- Moderate side effects
- dry mouth; sweating
- Serious side effects
- serotonin syndrome, requires immediate medical attention
- Dosage forms
- Tablet; Prolonged-release capsule, hard
- Administration route
- Oral use
- Originator
- Pfizer
- Onset Time
- 2–4 weeks
- Duration
- 24 hours
- Storage instructions
- Store below 25°C.
- Drug interactions
- mao inhibitors
Patient summary
Venlafaxine 37.5mg and 75mg, as tablets and prolonged-release capsules, used in the management of major depression and generalised anxiety disorder.
Mechanism of action
A selective serotonin and norepinephrine reuptake inhibitor. It increases the levels of serotonin and norepinephrine in the brain, helping to regulate mood and relieve symptoms of depression and anxiety.
Pregnancy and breastfeeding
Pregnancy: Use with caution in pregnancy. Breastfeeding: Confirm breastfeeding suitability with a qualified clinician or pharmacist before use.
Effexor is a recognized brand of venlafaxine, a compound used for the management of Major Depressive Disorder and Generalised Anxiety Disorder. The same active ingredient is also produced under names such as Venlax and Viepax. This medication is supplied as a tablet in strengths of 37.5mg and 75mg.
Buying Effexor online
While the original Pfizer brand remains a standard choice, generic venlafaxine is often more affordable, particularly when sourced from large-scale manufacturing hubs. For expats and travellers living outside their home countries, maintaining a steady medication routine is important, and these options remain accessible to patients across the region under a doctor’s care.
Do I get the original Effexor?
No. SGMeds ships a generic with the same active ingredient (venlafaxine) at the strength you choose, not the original Effexor made by Pfizer. We use the brand name so you can find the medicine, and the generic's manufacturer varies with stock.
What is Effexor for?
Effexor is used for major depressive disorder and generalised anxiety disorder.
How much does Effexor cost in Singapore?
Effexor comes in 37.5 and 75mg strengths, in packs of 10 to 360 tablets. Each option's price is shown on this page in Singapore dollars, converted from US dollars, so the exchange rate can change the final amount. Larger packs work out cheaper per tablet.
Payment and prices →Which other brands contain venlafaxine?
Other brand names for venlafaxine include Venlax and Viepax. SGMeds also lists Venlor with the same active ingredient.
How long does Effexor take to work?
Effexor usually starts to work within 2 to 4 weeks. Some people notice it sooner, others later.
What side effects does Effexor have?
The most common side effects of venlafaxine are nausea, dizziness and insomnia. Less common ones are dry mouth and sweating. Serious side effects include a reaction to too much serotonin (serotonin syndrome). Get medical help straight away if this happens.
What does Effexor interact with?
Venlafaxine can interact with older antidepressants (MAO inhibitors). Before you start Effexor, tell your doctor or pharmacist about any medicines, supplements or herbal remedies you take.
Do I need a prescription for Effexor in Singapore?
No. SGMeds does not ask for a prescription to order Effexor: we place the order with our pharmacy partner, which prepares it and arranges delivery on your behalf.
Ordering without a prescription →Where can I buy Effexor in Singapore?
You can order Effexor here on SGMeds: choose the strength and pack, then check out. We deliver to Singapore and Malaysia. Express shipping is tracked and takes up to 1 week, and Regular shipping takes up to 3 weeks.
How ordering works →What you will receive
Effexor is the originator brand name, made by Pfizer. We use it here to identify the medicine only; we are not affiliated with Pfizer and do not ship the original Effexor.
- You receive a generic equivalent: the same active ingredient (Venlafaxine) at the same dose, mostly recognised Indian branded generics from vetted manufacturers.
- The exact brand supplied depends on what is in stock at the dispatching warehouse.
- A regulated generic matches the original ingredient for ingredient by legal standard.