EFFEXOR XR® (venlafaxine HCl) should be taken exactly as prescribed. Your doctor may need to adjust your dosage of EFFEXOR XR until the right dose is established for you; do not change your dose without consulting your physician.
If you have questions about taking your medication, adjusting your daily dose, or discontinuing treatment with EFFEXOR XR, speak with your doctor.
It is important to take EFFEXOR XR every day according to your doctor’s instructions. If you miss a dose or abruptly decrease your dosage without your doctor's approval, there is a chance that you may experience “discontinuation symptoms.” This term describes the symptoms that may occur when a person suddenly stops or quickly lowers his or her daily dose of an antidepressant.
Examples of discontinuation symptoms include: agitation, anorexia, anxiety, confusion, problems with coordination and balance, diarrhea, dizziness, dry mouth, a “down” or sad mood, muscle twitches, fatigue, flu-like symptoms, headaches, feeling very “up” or irritable for a number of days with no need for sleep, problems falling asleep or staying asleep, nausea, nervousness, nightmares, sensory disturbances (including shock-like electrical sensations), feeling overly sleepy, sweating, tremor, vertigo, and vomiting.
If you and your doctor have made the decision to discontinue treatment, gradually reducing the dose is recommended rather than abruptly stopping your medication. To successfully taper you off treatment with EFFEXOR XR and avoid discontinuation symptoms, your physician should slowly decrease your daily dose and carefully monitor you for symptoms.
You should take EFFEXOR XR at about the same time every day. However, if you miss a dose, take the missed dose as soon as you remember. If it is almost time for the next dose, skip the missed dose and take your next dose at the regularly scheduled time. Do not take 2 doses of EFFEXOR XR at the same time.
If you take too much EFFEXOR XR, call your doctor or poison control center or seek emergency treatment immediately.