Majoven Xl (Venlafaxine Hydrochloride)

Venlafaxine Hydrochloride is an SNRI used to manage mood and anxiety disorders.

• Major depressive disorder: alleviates depressive symptoms and improves functional capacity.
• Generalized anxiety disorder: reduces excessive worry and associated physical tension.
• Social anxiety disorder: diminishes fear of social situations and improves social engagement.
• Panic disorder: lowers frequency and intensity of panic attacks.

• Venlafaxine Hydrochloride inhibits the reuptake of serotonin and norepinephrine at neuronal synapses, increasing their extracellular concentrations. This dual neurotransmitter enhancement modulates mood, anxiety, and pain pathways, contributing to its antidepressant and anxiolytic effects.

Venlafaxine Hydrochloride may cause a range of adverse reactions.

Common Side Effects

• Nausea: mild to moderate gastrointestinal upset.
• Headache: transient cranial discomfort.
• Dry mouth: reduced salivation.
• Insomnia: difficulty initiating or maintaining sleep.
• Sweating: increased perspiration.
• Dizziness: sensation of light‑headedness.

Serious or Rare Side Effects

• Hypertensive crisis: sudden, severe increase in blood pressure.
• Serotonin syndrome: agitation, hyperthermia, muscle rigidity.
• Suicidal thoughts: emergence of suicidal ideation, especially early in treatment.
• Liver injury: elevated hepatic enzymes or hepatitis.
• Severe allergic reaction: rash, swelling, anaphylaxis.

Before initiating therapy, consider the following precautions.

• Cardiovascular assessment: monitor blood pressure and heart rate regularly.
• Psychiatric monitoring: watch for worsening depression or emergence of suicidal thoughts.
• Drug discontinuation: taper gradually to avoid discontinuation syndrome.
• Pregnancy and lactation: evaluate risk‑benefit, as safety data are limited.
• Drug interactions: review concomitant medications for serotonergic activity.
• Store at ambient temperature: keep below 25°C in the original container, protect from moisture and light.

Venlafaxine Hydrochloride can interact with several drug classes.

Major Interactions (Avoid)

• MAO inhibitors: risk of hypertensive crisis and serotonin syndrome.
• Triptans: increased serotonergic effects leading to serotonin syndrome.
• Linezolid: additive serotonergic activity.

Moderate Interactions (Monitor Closely)

• NSAIDs: heightened risk of gastrointestinal bleeding.
• CYP2D6 inhibitors (e.g., fluoxetine, paroxetine): may increase venlafaxine plasma levels.
• Antihypertensives: possible attenuation of blood‑pressure‑lowering effect.