SURVEYOR Health - Drug Interactions and Side Effects of Effexor

Drug Interactions and Side Effects of Effexor

Effexor has 102 Side Effects total
51 are Life Threatening
22 Occur Most Frequently

Click for a searchable interactive map of all Side Effects associated with Effexor

Uses of Effexor

Effexor is also known by the generic name Venlafaxine

USES:
Venlafaxine is used to treat depression. It may improve your mood and energy level, and may help restore your interest in daily living. Venlafaxine is known as a serotonin-norepinephrine reuptake inhibitor (SNRI). It works by helping to restore the balance of certain natural substances (serotonin and norepinephrine) in the brain.

Effexor has 51 Life Threatening (Critical) Side Effects

Critical Seriousness - A Feeling of Restlessness with Inability to Sit Still - Akathisia is a Life Threatening Side Effect of Effexor

Critical Seriousness - Abnormal Heart Electrical Signals - Abnormal ECG is a Life Threatening Side Effect of Effexor

Critical Seriousness - Behaving with Excessive Cheerfulness and Activity - Manic Disorder is a Life Threatening Side Effect of Effexor

Critical Seriousness - Bleeding of the Stomach or Intestines - Gastrointestinal Hemorrhage is a Life Threatening Side Effect of Effexor

Critical Seriousness - Blood Pressure Drop Upon Standing - Orthostatic Hypotension is a Life Threatening Side Effect of Effexor

Critical Seriousness - Blurred Vision is a Life Threatening Side Effect of Effexor

Critical Seriousness - Cannot Empty Bladder - Urinary Retention is a Life Threatening Side Effect of Effexor

Critical Seriousness - Chest Pain is a Life Threatening Side Effect of Effexor

Critical Seriousness - Confused - Impaired Cognition is a Life Threatening Side Effect of Effexor

Critical Seriousness - Deficiency of Granulocytes a Type of White Blood Cell - Agranulocytosis is a Life Threatening Side Effect of Effexor

Critical Seriousness - Depression is a Life Threatening Side Effect of Effexor

Critical Seriousness - Difficult or Painful Urination - Dysuria is a Life Threatening Side Effect of Effexor

Critical Seriousness - Disturbance in the Ability of the Eye to Focus - Accommodation Disorder is a Life Threatening Side Effect of Effexor

Critical Seriousness - Enlarged Prostate - Benign Prostatic Hypertrophy is a Life Threatening Side Effect of Effexor

Critical Seriousness - Erythema Multiforme is a Life Threatening Side Effect of Effexor

Critical Seriousness - Fast Heartbeat - Tachyarrhythmia is a Life Threatening Side Effect of Effexor

Critical Seriousness - Feeling Restless - Feeling Agitated is a Life Threatening Side Effect of Effexor

Critical Seriousness - Fluid Retention in the Legs, Feet, Arms or Hands - Peripheral Edema is a Life Threatening Side Effect of Effexor

Critical Seriousness - Frequent Urination - Increased Urinary Frequency is a Life Threatening Side Effect of Effexor

Critical Seriousness - Giant Hives - Angioedema is a Life Threatening Side Effect of Effexor

Critical Seriousness - Having Thoughts of Suicide - Suicidal Ideation is a Life Threatening Side Effect of Effexor

Critical Seriousness - Head Pain - Headache Disorder is a Life Threatening Side Effect of Effexor

Critical Seriousness - Hemorrhage of Blood Under the Skin - Ecchymosis is a Life Threatening Side Effect of Effexor

Critical Seriousness - High Blood Pressure - Hypertension is a Life Threatening Side Effect of Effexor

Critical Seriousness - High Cholesterol - Hypercholesterolemia is a Life Threatening Side Effect of Effexor

Critical Seriousness - Increased Risk of Bleeding is a Life Threatening Side Effect of Effexor

Critical Seriousness - Interstitial Pneumonitis is a Life Threatening Side Effect of Effexor

Critical Seriousness - Itching - Pruritus of Skin is a Life Threatening Side Effect of Effexor

Critical Seriousness - Life Threatening Allergic Reaction - Anaphylaxis is a Life Threatening Side Effect of Effexor

Critical Seriousness - Lockjaw - Trismus is a Life Threatening Side Effect of Effexor

Critical Seriousness - Loss of One's Own Sense of Reality or Identity - Depersonalization is a Life Threatening Side Effect of Effexor

Critical Seriousness - Low Amount of Sodium in the Blood - Hyponatremia is a Life Threatening Side Effect of Effexor

Critical Seriousness - Low Blood Counts due to Bone Marrow Failure - Aplastic Anemia is a Life Threatening Side Effect of Effexor

Critical Seriousness - Low Blood Sugar - Hypoglycemic Disorder is a Life Threatening Side Effect of Effexor

Critical Seriousness - Mental Impairment is a Life Threatening Side Effect of Effexor

Critical Seriousness - Mild Degree of Mania - Hypomania is a Life Threatening Side Effect of Effexor

Critical Seriousness - Mood Changes is a Life Threatening Side Effect of Effexor

Critical Seriousness - Neuroleptic Malignant Syndrome is a Life Threatening Side Effect of Effexor

Critical Seriousness - Pneumonia with High Amount of Eosinophil White Blood Cells - Eosinophilic Pneumonia is a Life Threatening Side Effect of Effexor

Critical Seriousness - Problems with Eyesight - Visual Changes is a Life Threatening Side Effect of Effexor

Critical Seriousness - Prolonged Q-T Interval on EKG - Prolonged QT Interval is a Life Threatening Side Effect of Effexor

Critical Seriousness - Rash - Skin Rash is a Life Threatening Side Effect of Effexor

Critical Seriousness - Ringing in the Ears - Tinnitus is a Life Threatening Side Effect of Effexor

Critical Seriousness - Seizures - Seizure Disorder is a Life Threatening Side Effect of Effexor

Critical Seriousness - Serotonin Syndrome - Adverse Drug Interaction - Serotonin Syndrome is a Life Threatening Side Effect of Effexor

Critical Seriousness - Sexual Problems - Abnormal Sexual Function is a Life Threatening Side Effect of Effexor

Critical Seriousness - Sinus Irritation and Congestion - Sinusitis is a Life Threatening Side Effect of Effexor

Critical Seriousness - Stevens-Johnson Syndrome is a Life Threatening Side Effect of Effexor

Critical Seriousness - Toxic Epidermal Necrolysis is a Life Threatening Side Effect of Effexor

Critical Seriousness - Trouble Breathing - Dyspnea is a Life Threatening Side Effect of Effexor

Critical Seriousness - Very Rapid Heartbeat - Torsades de Pointes - Torsades de Pointes is a Life Threatening Side Effect of Effexor

Click for a searchable interactive map of all Life Threatening Side Effects associated with Effexor.

Effexor has 22 Most Frequently Occurring Side Effects

Anxious - Anxiety is a Frequently Occurring Side Effect of Effexor

Blurred Vision is a Frequently Occurring Side Effect of Effexor

Chronic Trouble Sleeping - Insomnia is a Frequently Occurring Side Effect of Effexor

Disturbance in the Ability of the Eye to Focus - Accommodation Disorder is a Frequently Occurring Side Effect of Effexor

Dizzy - Dizziness is a Frequently Occurring Side Effect of Effexor

Drowsiness - Drowsy is a Frequently Occurring Side Effect of Effexor

Dry Mouth - Xerostomia is a Frequently Occurring Side Effect of Effexor

Excessive Sweating - Hyperhidrosis is a Frequently Occurring Side Effect of Effexor

Feel Like Throwing Up - Nausea is a Frequently Occurring Side Effect of Effexor

Feeling Weak - General Weakness is a Frequently Occurring Side Effect of Effexor

Head Pain - Headache Disorder is a Frequently Occurring Side Effect of Effexor

Incomplete or Infrequent Bowel Movements - Constipation is a Frequently Occurring Side Effect of Effexor

Involuntary Quivering - Tremors is a Frequently Occurring Side Effect of Effexor

Loss of Appetite - Anorexia is a Frequently Occurring Side Effect of Effexor

Nervous - Nervousness is a Frequently Occurring Side Effect of Effexor

Numbness and Tingling - Paresthesia is a Frequently Occurring Side Effect of Effexor

Problem with Ejaculation - Disorder of Ejaculation is a Frequently Occurring Side Effect of Effexor

Problems with Eyesight - Visual Changes is a Frequently Occurring Side Effect of Effexor

Sexual Problems - Abnormal Sexual Function is a Frequently Occurring Side Effect of Effexor

Stomach Cramps - Abdominal Pain with Cramps is a Frequently Occurring Side Effect of Effexor

Taste Problems - Dysgeusia is a Frequently Occurring Side Effect of Effexor

Throwing Up - Vomiting is a Frequently Occurring Side Effect of Effexor

Click for a searchable interactive map of all Side Effects associated with Effexor

Effexor Drug-Drug Interactions

Effexor has interactions of severe seriousness with 53 drug(s):

Effexor has 1 severe interactions with Alterra. Click here to see them

Effexor has 1 severe interactions with Atapryl. Click here to see them

Effexor has 1 severe interactions with Azilect. Click here to see them

Effexor has 1 severe interactions with B Cplx-C-St.Johnwrt-K.&S.Ginsg. Click here to see them

Effexor has 1 severe interactions with Calcium-Mag-B Complex-D3-Hrb61. Click here to see them

Effexor has 1 severe interactions with Carbex. Click here to see them

Effexor has 1 severe interactions with Centrum Herbals St Johns Wort. Click here to see them

Effexor has 1 severe interactions with Cold & Flu Fighter. Click here to see them

Effexor has 1 severe interactions with Dexfenfluramine. Click here to see them

Effexor has 1 severe interactions with Digestive Enzym,Plant-Herbcb14. Click here to see them

Effexor has 1 severe interactions with Eldepryl. Click here to see them

Effexor has 1 severe interactions with Emsam. Click here to see them

Effexor has 1 severe interactions with Fa-Omega 3-Dha-Epa-St. John'S. Click here to see them

Effexor has 1 severe interactions with Fatigue Relief Complex. Click here to see them

Effexor has 1 severe interactions with Fenfluramine. Click here to see them

Effexor has 1 severe interactions with Furazolidone. Click here to see them

Effexor has 1 severe interactions with Furoxone. Click here to see them

Effexor has 1 severe interactions with Harmonex. Click here to see them

Effexor has 1 severe interactions with Imuzyme. Click here to see them

Effexor has 1 severe interactions with Isocarboxazid. Click here to see them

Effexor has 1 severe interactions with Kira St. John'S Wort. Click here to see them

Effexor has 1 severe interactions with Lecithin-Fa-Vit B Comp-Herbal. Click here to see them

Effexor has 1 severe interactions with Mag Oxide-St John Wt-Blk Coh. Click here to see them

Effexor has 1 severe interactions with Marplan. Click here to see them

Effexor has 1 severe interactions with Matulane. Click here to see them

Effexor has 2 severe interactions with Meridia. Click here to see them

Effexor has 1 severe interactions with Methylene Blue (Antidote). Click here to see them

Effexor has 1 severe interactions with Mood Formula. Click here to see them

Effexor has 1 severe interactions with Mood Support Formula. Click here to see them

Effexor has 1 severe interactions with Moodplex. Click here to see them

Effexor has 1 severe interactions with Movana. Click here to see them

Effexor has 1 severe interactions with Nardil. Click here to see them

Effexor has 1 severe interactions with One-A-Day Tension. Click here to see them

Effexor has 1 severe interactions with Parnate. Click here to see them

Effexor has 1 severe interactions with Phenelzine. Click here to see them

Effexor has 1 severe interactions with Phenylalanine-St. J Wort-Griff. Click here to see them

Effexor has 1 severe interactions with Pondimin. Click here to see them

Effexor has 1 severe interactions with Procarbazine. Click here to see them

Effexor has 1 severe interactions with Quanterra Emotional. Click here to see them

Effexor has 1 severe interactions with Rasagiline. Click here to see them

Effexor has 1 severe interactions with Redux. Click here to see them

Effexor has 1 severe interactions with Selegiline. Click here to see them

Effexor has 1 severe interactions with Selegiline Hcl. Click here to see them

Effexor has 2 severe interactions with Sibutramine. Click here to see them

Effexor has 1 severe interactions with St. John'S Wort. Click here to see them

Effexor has 1 severe interactions with St. John'S Wort-Siber.Ginseng. Click here to see them

Effexor has 1 severe interactions with Staycalm. Click here to see them

Effexor has 1 severe interactions with Stresstabs Herbal Menopause. Click here to see them

Effexor has 1 severe interactions with Tranylcypromine. Click here to see them

Effexor has 1 severe interactions with Valerian-St.Johns Wort-Ca-Vits. Click here to see them

Effexor has 1 severe interactions with Vit C-St. John Wort-Elder-Hb30. Click here to see them

Effexor has 1 severe interactions with Women'S Complex. Click here to see them

Effexor has 1 severe interactions with Zelapar. Click here to see them

Effexor has interactions of serious seriousness with 75 drug(s).

Effexor has interactions of moderate seriousness with 967 drug(s).

Effexor has interactions of unknown seriousness with 0 drug(s).

Effexor has 28 Condition Contraindications

If you have any of these Conditions then you should carefully evaluate the risks of taking Effexor.

Effexor Oral Contraindications
(grouped by decreasing seriouosness level)

Relative Contraindications

Congenital Long QT Syndrome - Abnormal EKG with QT changes from Birth is a contraindication of Effexor.

Hepatic Cirrhosis - Hardening of the Liver is a contraindication of Effexor.

Narrow Angle Glaucoma - Closed Angle Glaucoma is a contraindication of Effexor.

Ocular Hypertension - Increased Pressure in the Eye is a contraindication of Effexor.

Prolonged QT Interval - Prolonged Q-T Interval on EKG is a contraindication of Effexor.

Recovery Phase Following Myocardial Infarct - Recent Heart Attack is a contraindication of Effexor.

Renal Disease with Mild to Moderate Renal Function Impairment - Mild to Moderate Kidney Impairment is a contraindication of Effexor.

Renal Disease with Moderate to Severe Function Impairment - Moderate to Severe Kidney Impairment is a contraindication of Effexor.

Severe Hepatic Disease - Severe Liver Disease is a contraindication of Effexor.

Severe Uncontrolled Hypertension - Severe Uncontrolled High Blood Pressure is a contraindication of Effexor.

Suicidal Ideation - Having Thoughts of Suicide is a contraindication of Effexor.

Upper GI Bleed - Bleeding from Stomach, Esophagus or Duodenum is a contraindication of Effexor.

Contraindication Warnings

Blood Coagulation Disorder - Blood Clotting Disorder is a contraindication of Effexor.

Chronic Heart Failure is a contraindication of Effexor.

Drug Dependence - Taking Habit Forming Drugs is a contraindication of Effexor.

Hypercholesterolemia - High Cholesterol is a contraindication of Effexor.

Hypertension - High Blood Pressure is a contraindication of Effexor.

Hyperthyroidism - Overactive Thyroid Gland is a contraindication of Effexor.

Hypomania - Mild Degree of Mania is a contraindication of Effexor.

Hyponatremia - Low Amount of Sodium in the Blood is a contraindication of Effexor.

Increased Risk of Bleeding is a contraindication of Effexor.

Manic Disorder - Behaving with Excessive Cheerfulness and Activity is a contraindication of Effexor.

Neuroleptic Malignant Syndrome is a contraindication of Effexor.

SIADH Syndrome - Syndrome of Inappropriate Antidiuretic Hormone Secretion is a contraindication of Effexor.

Seizure Disorder - Seizures is a contraindication of Effexor.

Serotonin Syndrome - Serotonin Syndrome - Adverse Drug Interaction is a contraindication of Effexor.

Substance Abuse - Misuse or Excessive Use of Drugs is a contraindication of Effexor.

Weight Loss is a contraindication of Effexor.

Effexor has 15 related brands and strengths:

Effexor Xr 150 Mg 24 Hr Cap

Effexor Xr 37.5 Mg 24 Hr Cap

Effexor Xr 75 Mg 24 Hr Cap

Venlafaxine 100 Mg Tab

Venlafaxine 25 Mg Tab

Venlafaxine 37.5 Mg Tab

Venlafaxine 50 Mg Tab

Venlafaxine 75 Mg Tab

Venlafaxine Er 150 Mg 24 Hr Cap

Venlafaxine Er 150 Mg 24 Hr Tab

Venlafaxine Er 225 Mg 24 Hr Tab

Venlafaxine Er 37.5 Mg 24 Hr Cap

Venlafaxine Er 37.5 Mg 24 Hr Tab

Venlafaxine Er 75 Mg 24 Hr Cap

Venlafaxine Er 75 Mg 24 Hr Tab

Effexor - Symptoms of overdose may include
severe drowsiness, seizures, fast/irregular heartbeat.

Contact poison control
If overdose is suspected, contact your local poison control center or emergency room immediately. US residents can call the US national poison hotline at 1-800-222-1222. Canadian residents should call their local poison control center directly.