It also :. Serotonin helps control a number of processes within the brain. These include mood and emotions, anxiety and aggression, sleep, appetite, memory, and perceptions. Venlafaxine, under the trade name Effexor, appeared on the American market in , as a treatment for depression.
Venlafaxine is available :. Under the name Effexor, it is only available as the XR version. Generic versions are available in both immediate release and XR forms. The doctor will advise about dosage. People with liver or kidney problems will have a lower dose.
One review suggests that it is comparable to other major antidepressants in treating generalized anxiety disorder GAD , obsessive-compulsive disorder OCD , panic disorder, post-traumatic stress disorder PTSD , and social anxiety disorder.
Before taking venlafaxine, patients should discuss their medical history with their doctor to determine whether the drug is appropriate. Patients with major depressive disorder may experience a worsening of depression, agitation and other symptoms, including thoughts of suicide, especially at the beginning of the treatment. Those caring for these patients are urged to monitor carefully for these signs and to contact a physician at once if they occur.
A major depressive episode can sometimes be the first manifestation of bipolar disorder , so patients should be screened for bipolar disorder before being prescribed venlafaxine.
Seizure disorders : Venlafaxine should not be taken by patients who experience seizures. Interactions have led to serious adverse effects. Allergies : Anyone who is allergic to its ingredients should not take it. These include venlafaxine hydrochloride, gelatin, titanium dioxide, hypromellose, iron oxide, ethylcellulose, and cellulose. High blood pressure : Venlafaxine has been linked to raised blood pressure , or hypertension , in some patients, so regular monitoring of blood pressure is recommended.
Glaucoma : Anyone with a history of glaucoma should let their doctor know about this first. Pregnancy : One study, published in the Canadian Medical Association Journal CMAJ , has suggested that pregnant women who take venlafaxine may be at a higher risk of a miscarriage, so pregnant women should only take it if absolutely necessary.
Breastfeeding : As the drug can pass into breast milk, mothers taking venlafaxine should talk to their doctor before breastfeeding. This information contains a summary of important points and is not an exhaustive review of information about the medication. Always seek the advice of a physician or other qualified medical professional with any questions you may have regarding medications or medical conditions.
Never delay seeking professional medical advice or disregard medical professional advice as a result of any information provided herein. The College of Psychiatric and Neurologic Pharmacists disclaims any and all liability alleged as a result of the information provided herein.
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Venlafaxine Effexor. Know the warning signs Learn the common signs of mental illness in adults and adolescents. Mental health conditions Learn more about common mental health conditions that affect millions. Other symptoms include: Restlessness Fatigue low energy, feeling tired all the time Difficulty concentrating Irritability Muscle tension Sleep disturbance difficulty falling asleep or waking up in the middle of the night Panic Disorder occurs when a person experiences unexpected and repeated episodes of intense fear.
Missing doses of venlafaxine may increase your risk for relapse in your symptoms. Caution is advised with breastfeeding since venlafaxine does pass into breast milk. Symptoms of your condition that bother you the most If you have thoughts of suicide or harming yourself Medications you have taken in the past for your condition, whether they were effective or caused any adverse effects If you experience side effects from your medications, discuss them with your provider.
Some side effects may pass with time, but others may require changes in the medication. Any other psychiatric or medical problems you have, including a history of bipolar disorder All other medications you are currently taking including over the counter products, herbal and nutritional supplements and any medication allergies you have Other non-medication treatment you are receiving, such as talk therapy or substance abuse treatment.
Your provider can explain how these different treatments work with the medication. If you are pregnant, plan to become pregnant, or are breastfeeding If you drink alcohol or use drugs How Should I Take Venlafaxine?
Extended release tablets: swallow whole; do not chew, crush, or break Extended release capsules: swallow whole or sprinkle onto food, such as applesauce or pudding and eat immediately.
A specific treatment to reverse the effects of venlafaxine does not exist. Do not crush, chew, or split the capsules. Depression: The recommended dose of venlafaxine for people with depression is 75 mg once daily. For some people, the doctor may recommend starting with a lower dose of The dose can then be increased to 75 mg daily. If the expected benefit does not occur after a few weeks, your doctor may gradually increase the dose to a maximum of mg daily, until improvement is seen.
Your doctor may gradually increase the dose to a maximum of mg daily, based on your response to the medication. Social anxiety disorder social phobia : The usual recommended starting dose of venlafaxine is 75 mg once daily. Your doctor may gradually increase the dose based on your response to the medication, to a maximum of mg daily.
Panic disorder panic attacks : For people with panic attacks, the recommended starting dose of venlafaxine extended release is Your doctor may gradually increase the dose based on your response to the medication to a maximum of mg daily. Many things can affect the dose of a medication that a person needs, such as body weight, other medical conditions, and other medications. If your doctor has recommended a dose different from the ones listed here, do not change the way that you are taking the medication without consulting your doctor.
It is important that this medication be taken exactly as prescribed by your doctor. If you miss a dose, skip the missed dose and continue with your regular dosing schedule. Do not take a double dose to make up for a missed one. If you are not sure what to do after missing a dose, contact your doctor or pharmacist for advice.
Store this medication at room temperature, protect it from moisture, and keep it out of the reach of children. Do not dispose of medications in wastewater e. Ask your pharmacist how to dispose of medications that are no longer needed or have expired. Many medications can cause side effects. A side effect is an unwanted response to a medication when it is taken in normal doses.
Side effects can be mild or severe, temporary or permanent. The side effects listed below are not experienced by everyone who takes this medication. If you are concerned about side effects, discuss the risks and benefits of this medication with your doctor. Many of these side effects can be managed, and some may go away on their own over time.
Contact your doctor if you experience these side effects and they are severe or bothersome. Your pharmacist may be able to advise you on managing side effects. Although most of the side effects listed below don't happen very often, they could lead to serious problems if you do not check with your doctor or seek medical attention.
Check with your doctor as soon as possible if any of the following side effects occur:. Stop taking the medication and seek immediate medical attention if any of the following occur:. Some people may experience side effects other than those listed. Check with your doctor if you notice any symptom that worries you while you are taking this medication.
Before you begin using a medication, be sure to inform your doctor of any medical conditions or allergies you may have, any medications you are taking, whether you are pregnant or breast-feeding, and any other significant facts about your health.
These factors may affect how you should use this medication. Allergic reactions: In rare cases, some people may develop an allergic reaction to this medication. Signs of an allergic reaction include a severe rash, swollen face, or difficulty breathing.
If these occur, get immediate medical attention. Behaviour changes or suicidal behaviour: Some people taking this medication experience erratic or aggressive behaviour, agitation, depressed mood, or they may have thoughts of harming themselves or others. If you experience any mood or behaviour changes, or if your friends or family observe any of these changes while you are taking this medication, stop taking this medication and contact your doctor immediately.
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