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MRP: Rs. 19.48 for 1 strip(s) (10 capsules each)
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Composition for VENFAX

Venlafaxine(37.5 mg)

food interaction for VENFAX

alcohol interaction for VENFAX

pregnancy interaction for VENFAX

lactation interaction for VENFAX

It is better to take Venfax 37.5mg capsule with food.
Venfax 37.5mg capsule may cause excessive drowsiness and calmness with alcohol.
Venfax 37.5mg capsule may be unsafe to use during pregnancy.
Animal studies have shown adverse effects on the foetus, however, there are limited human studies. The benefits from use in pregnant women may be acceptable despite the risk. Please consult your doctor.
Unknown. Human and animal studies are not available. Please consult your doctor.


Venlafaxine(37.5 mg)


Venfax 37.5mg capsule is used in the treatment of depression and diabetic nerve disease.

How it works

Venfax 37.5mg capsule works in depression by increasing the levels of chemical messengers in the brain that helps in regulating mood.

Common side effects

Nervousness, Nightmare, Palpitations, Irregular menstrual cycle, Abnormal urination during the day, Abnormal visual accomodation, Anorgasmia (decreased orgasm), Chills, Confusion, Constipation, Decreased libido, Depersonalisation (feelings of being outside the body), Dilation of the pupil of the eye, Dizziness, Dry mouth, Ejaculation disorder, Headache, Increased cholesterol level in blood, Impaired urination, Impotence, Increased blood pressure, Increased muscle contractions, Increased sweating, Insomnia, Loss of appetite, Nausea, Sedation, Suicidal thoughts, Tremor, Vasodilation, Visual impairment, Vomiting, Weakness, Weight loss, Yawning, Abnormal sensation in skin


1 Substitutes
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    (10 capsules in strip)
    Psychotropics India Ltd
    Rs. 3.19/capsule
    Rs. 31.85
    pay 64% more per capsule

Top Psychiatrists

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Expert advice for VENFAX

  • Seek immediate medical attention if you develop any suicidal tendency at initial stages of recovery.
  • Do not use in children and adolescents below 18 years of age.
  • Taking venlafaxine may increase risk of dilatation of pupil of eye (mydriasis). Seek medical advice from your doctor.
  • Stop taking venlafaxine if you develop fits.
  • Care should be taken if you are an elderly patient, taking diuretics, and if you have volume-depletion, because there may be a greater risk of hyponatremia (low sodium in blood).
  • Use with caution if you are prone to bleeding, if you are taking anticoagulants and platelet inhibitors, or if you have heart disease, high blood pressure, high cholesterol, liver disease, kidney disease, narrow-angle glaucoma.
  • If you are on antidiabetic therapy you may advised to adjust the dose of the medication. 

Frequently asked questions for VENFAX


Q.Is venlafaxine an SSRI/MAOI/narcotic/ antipsychotic/ sedating/benzodiazepine?
Venlafaxine is an antidepressant drug. In animal studies, it is found to have serotonin reuptake inhibitor (SSRI) activity. It is not a narcotic/ antipsychotic/ sedating/ benzodiazepine

Q.Is venlafaxine safe?
Venlafaxine is safe if used at prescribed dose and duration as advised by your doctor for a particular disease condition

Q.Is venlafaxine the same as Effexor?
Yes, Effexor is a brand name of drug containing venlafaxine

Q.Can I take Effexor/venlafaxine forever?
No, patient should take Effexor/venlafaxine for prescribed duration as advised by your doctor

Q.Can I take Effexor (venlafaxine) with Mucinex (guaifenesin)?
Taking Effexor (venlafaxine) with Mucinex (guaifenesin) does not cause any harmful effects. Please follow your doctor's advice regarding its use

Q.Can I take venlafaxine or Effexor with Xanax (alprazolam)/diazepam/ mirtazapine/ tramadol/ hydrocodone/ Wellbutrin (bupropion)?
Taking Effexor (venlafaxine) with Xanax (alprazolam)/ diazepam/ mirtazapine/ tramadol/ hydrocodone/ Wellbutrin (bupropion) may cause harmful effects such as fits, dizziness, and serotonin syndrome. Please follow your doctor's advice regarding its use

Q.Does venlafaxine contain MAOI?
No, it does not contain monoamine oxidase inhibitors (MAOIs)

Q.Does venlafaxine affect birth control/ affect libido/ cause memory loss?
These side effects are observed with venlafaxine use. Consult your doctor if you experience one or more such symptoms

Q.Does venlafaxine help with anxiety/ pain/to lose weight?
Venlafaxine is used to treat major depressive episodes and to prevent recurrence of such episodes. Its use in anxiety, pain and to lose weight is not established. Please follow doctor's advice regarding its use.


Content on this page was last updated on 01 April, 2014, by Dr. Varun Gupta (MD Pharmacology)