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Zyban Side Effects

Zyban is the same drug as the antidepressant Wellbutrin. The side effects are of course identical.

We have listed 186 of the common Zyban side effects below on this page. All medical terms have been defined for the ease of understanding. This is not all of the Zyban side effects from Zyban clinical studies, that number would be over 500 hundred. We have used the Freedom of Information Act and have received the actual Zyban side effect information to verify this data.

Zyban side effects mimic Zyban withdrawal side effects. In other words, the Zyban side effects may only begin when Zyban is being reduced. You may not have these Zyban side effects at this time but when the Zyban is reduced any of the side effects may begin.

The web site you are currently on is called The Road Back. We are located in the United States and we have been helping people off Zyban and other psychoactive drugs since 1999. As of 2012, over 40,000 people have used this program to become drug free, that we know of. With over 13 million web site visitors and offering all of the information for free, the numbers of people that have used this information are probably quite higher.

If you currently have Zyban side effects or side effects from any antidepressant click How to Start located on the top navigation menu.

Zyban Side Effects Defined

Zyban side effects

General Body

Dry Mouth – Less moisture in the mouth than is usual. Zyban side effects

Sweating Increased - A large quantity of perspiration that is medically caused. Zyban side effects

Allergy - Extreme sensitivity of body tissues triggered by substances in the air, drugs, or foods causing a variety of reactions such as sneezing, itching, asthma, hay fever, skin rashes, nausea and/or vomiting. Zyban side effects

Asthenia - A physically weak condition. Zyban side effects

Chest Pains - Severe discomfort in the chest caused by not enough oxygen going to the heart because of narrowing of the blood vessels or spasms. Zyban side effects

Chills - Appearing pale while cold and shivering; sometimes with a fever. Zyban side effects

Edema of Extremities - Abnormal swelling of the body’s tissue caused by the collection of fluid. Zyban side effects

Fall - To suddenly lose your normal standing upright position. Zyban side effects

Fatigue - Loss of normal strength so as to not be able to do the usual physical and mental activities. Zyban side effects

Fever - Abnormally high body temperature, the normal being 98.6 degrees Fahrenheit or 37 degrees Centigrade in humans. Fever is a symptom of disease or disorder in the body. The body is affected by feeling hot, chilled, sweaty, weak and exhausted. If the fever goes too high, or lasts too long, death can result. Zyban side effects

Hot Flashes - Brief, abnormal enlargement of the blood vessels that causes a sudden heat sensation over the entire body. Women in menopause will sometimes experience this. Zyban side effects

Influenza (Flu)-like Symptoms - Demonstrating irritation of the respiratory tract (organs of breathing) such as a cold, sudden fever, aches and pains, as well as feeling weak and seeking bed rest, which is similar to having the flu. Zyban side effects

Leg Pain - A hurtful sensation in the legs that is caused by excessive stimulation of the nerve endings in the legs and results in extreme discomfort. Zyban side effects

Malaise - The somewhat unclear feeling of discomfort you get when you start to feel sick. Zyban side effects

Pain in Limb - Sudden, sharp, and uncontrolled leg or arm discomfort. Zyban side effects

Syncope - A short period of light-headedness or unconsciousness (black-out) also known as fainting, caused by lack of oxygen to the brain because of an interruption in blood flow to the brain. Zyban side effects

Tightness of Chest - Mild or sharp discomfort, tightness or pressure in the chest area (anywhere between the throat and belly). The causes can be mild or seriously life-threatening because they include the heart, lungs and surrounding muscles. Zyban side effects

CARDIOVASCULAR (INVOLVING THE HEART AND THE BLOOD VESSELS)

Palpitation - Unusual and not normal (abnormal) heartbeat, that is sometimes irregular, but rapid, and forceful thumping or fluttering. It can be brought on by shock, excitement, exertion, or medical stimulants. A person is normally unaware of his/her heartbeat. Zyban side effects

Hypertension - High blood pressure, a symptom of disease in the blood vessels leading away from the heart. Hypertension is known as the “silent killer.” The symptoms are usually not obvious; however, it can lead to damage to the heart, brain, kidneys and eyes, and can even lead to stroke and kidney failure. Zyban side effects

Bradycardia - The heart rate is slowed from 72 beats per minute, which is normal, to below 60 beats per minute in an adult. Zyban side effects

Tachycardia - The heart rate is sped up to above 100 beats per minute in an adult. Normal adult heart rate is 72 beats per minute. Zyban side effects

ECG Abnormal - A test called an electrocardiogram (ECG) records the activity of the heart. It measures heartbeats as well as the position and size of the heart’s four chambers. It also measures if there is damage to the heart and the effects of drugs or mechanical devices like a pacemaker on the heart. When the test is abnormal this means one or more of the following are present: heart disease, defects, beating too fast or too slow, disease of the blood vessels leading from the heart or the heart valves, and/or a past or impending heart attack. Zyban side effects

Flushing - The skin all over the body turns red. Zyban side effects

Varicose Veins - Unusually swollen veins near the surface of the skin that sometimes appear twisted and knotted, but always enlarged. They are called hemorrhoids when they appear around the rectum. The cause is attributed to hereditary weakness in the veins aggravated by obesity, pregnancy, pressure from standing, aging, etc. Severe cases may develop swelling in the legs, ankles and feet, eczema and/or ulcers in the affected areas. Zyban side effects

GASTROINTESTINAL (INVOLVING THE STOMACH AND THE INTESTINES)

Abdominal Cramp/Pain - Sudden, severe, uncontrollable and painful shortening and thickening of the muscles in the belly. The belly includes the stomach, as well as the intestines, liver, kidneys, pancreas, spleen, gall bladder, and urinary bladder. Zyban side effects

Belching - Noisy release of gas from the stomach through the mouth; a burp. Zyban side effects

Bloating - Swelling of the belly caused by excessive intestinal gas. Zyban side effects

Constipation - Difficulty in having a bowel movement where the material in the bowels is hard due to a lack of exercise, fluid intake, and roughage in the diet, or due to certain drugs. Zyban side effects

Diarrhea - Unusually frequent and excessive runny bowel movements that may result in severe dehydration and shock. Zyban side effects

Dyspepsia/Indigestion. The discomfort one may experience after eating. It can be heartburn, gas, nausea, a bellyache or bloating. Zyban side effects

Flatulence - More gas than normal in the digestive organs. Zyban side effects

Gagging - Involuntary choking and/or involuntary vomiting. Zyban side effects

Gastritis - A severe irritation of the mucus lining of the stomach, either short in duration or lasting for a long period of time. Zyban side effects

Gastroenteritis - A condition in which the membranes of the stomach and intestines are irritated. Zyban side effects

Gastrointestinal Hemorrhage - Excessive internal bleeding in the stomach and intestines. Zyban side effects

Gastro Esophageal Reflux - A continuous state where stomach juices flow back into the throat causing acid indigestion and heartburn and possibly injury to the throat. Zyban side effects

Heartburn - A burning pain in the area of the breastbone caused by stomach juices flowing back up into the throat. Zyban side effects

Hemorrhoids - Small rounded purplish swollen veins that bleed, itch or are painful, and appear around the anus. Zyban side effects

Increased Stool Frequency - see “Diarrhea.” Zyban side effects

Indigestion - Inability to properly consume and absorb food in the digestive tract, causing constipation, nausea, stomachache, gas, swollen belly, pain, and general discomfort or sickness. Zyban side effects

Nausea - Stomach irritation with a queasy sensation similar to motion sickness and a feeling that one is going to vomit. Zyban side effects

Polyposis Gastric - Tumors that grow on stems in the lining of the stomach, which usually become cancerous. Zyban side effects

Swallowing Difficulty - A feeling that food is stuck in the throat or upper chest area and won’t go down, making it difficult to swallow. Zyban side effects

Toothache - Pain in a tooth above and below the gum line. Zyban side effects

Vomiting - Involuntarily throwing up the contents of the stomach, usually accompanied by a nauseated, sick feeling just prior to doing so. Zyban side effects

HEMIC & LYMPHATIC (INVOLVING THE BLOOD AND THE CLEAR FLUIDS IN THE TISSUES THAT CONTAIN WHITE BLOOD CELLS)

Anemia - A condition in which the blood is no longer carrying enough oxygen, so the person looks pale and easily gets dizzy, weak and tired. More severely, a person can end up with an abnormal heart, as well as breathing and digestive difficulties. Zyban side effects

Bruise- Damage to the skin resulting in a purple-green-yellow skin coloration that is caused by breaking the blood vessels in the area without breaking the surface of the skin. Zyban side effects

Nosebleed - Blood loss from the nose. Zyban side effects

Hematoma - Broken blood vessels that cause a swelling in an area on the body. Zyban side effects

Lymphadenopathy Cervical - The lymph nodes in the neck, part of the body’s immune system, become swollen and enlarged by reacting to the presence of a drug. The swelling is the result of the white blood cells multiplying in order to fight the invasion of the drug. Zyban side effects

METABOLIC & NUTRITIONAL (ENERGY AND HEALTH)

Arthralgia - Sudden sharp nerve pain in one or more joints. Zyban side effects

Arthropathy - Joint disease or abnormal joints. Zyban side effects

Arthritis - Painfully inflamed and swollen joints. The reddened and swollen condition is brought on by a serious injury or shock to the body either from physical or emotional causes. Zyban side effects

Back Discomfort - Severe physical distress in the area from the neck to the pelvis along the backbone. Zyban side effects

Bilirubin Increased - Bilirubin is a waste product of the breakdown of old blood cells. Bilirubin is sent to the liver to be made water-soluble so it can be eliminated from the body through emptying the bladder. A drug can interfere with or damage this normal liver function, creating liver disease. Zyban side effects

Decreased Weight - Uncontrolled and measured loss of heaviness or weight. Zyban side effects

Gout - A severe arthritis condition that is caused by the dumping of a waste product called uric acid into the tissues and joints. It can become worse and cause the body to develop a deformity after going through stages of pain, inflammation, severe tenderness and stiffness. Zyban side effects

Hepatic Enzymes Increased - An increase in the amount of paired liver proteins that regulate liver processes causing a condition in which the liver functions abnormally. Zyban side effects

Hypercholesterolemia - Too much cholesterol in the blood cells. Zyban side effects

Hyperglycemia - An unhealthy amount of sugar in the blood. Zyban side effects

Increased Weight - A concentration and storage of fat in the body accumulating over a period of time caused by unhealthy eating patterns, a lack of physical activity, or an inability to process food correctly, that can predispose the body to many disorders and diseases. Zyban side effects

Jaw Pain - The pain due to irritation and swelling of the nerves associated with the mouth area where it opens and closes just in front of the ear. Some of the symptoms are: pain when chewing, headaches, losing your balance, stuffy ears or ringing in the ears, and teeth grinding. Zyban side effects

Jaw Stiffness - The result of squeezing and grinding the teeth while asleep that can cause your teeth to deteriorate, as well as the muscles and joints of the jaw. Zyban side effects

Joint Stiffness - A loss of free motion and easy flexibility where any two bones come together. Zyban side effects

Muscle Cramp - When muscles contract uncontrollably without warning and do not relax. The muscles of any body organs can cramp. Zyban side effects

Muscle Stiffness - The tightening of muscles making it difficult to bend. Zyban side effects

Muscle Weakness - Loss of physical strength. Zyban side effects

Myalgia - A general widespread pain and tenderness of the muscles. Zyban side effects

Thirst - A strong, unnatural craving for moisture/water in the mouth and throat. Zyban side effects

NERVOUS SYSTEM (SENSORY CHANNELS)

Carpal Tunnel Syndrome - A pinched nerve in the wrist that causes pain, tingling, and numbing. Zyban side effects

Coordination Abnormal - A lack of normal, harmonious interaction of the parts of the body when it is in motion. Zyban side effects

Dizziness - Losing one’s balance while feeling unsteady and lightheaded which may lead to fainting. Zyban side effects

Disequilibrium - Lack of mental and emotional balance. Zyban side effects

Faintness - A temporary condition in which one is likely to become unconscious and fall. Zyban side effects

Headache - A sharp or dull persistent pain in the head. Zyban side effects

Hyperreflexia - A not normal (abnormal) and involuntary increased response in the tissues connecting the bones to the muscles. Zyban side effects

Light-Headed Feeling – An uncontrolled and usually brief loss of consciousness usually caused by a lack of oxygen to the brain. Zyban side effects

Migraine - Recurring severe head pain sometimes accompanied by nausea, vomiting, dizziness, flashes or spots before the eyes, and ringing in the ears. Zyban side effects

Muscle Contractions Involuntary – A spontaneous and uncontrollable tightening reaction of the muscles caused by electrical impulses from the nervous system. Zyban side effects

Muscular Tone Increased - Uncontrolled and exaggerated muscle tension. Muscles are normally partially tensed and this is what gives us muscle tone. Zyban side effects

Paresthesia - Burning, prickly, itchy, or tingling skin with no obvious or understood physical cause. Zyban side effects

Restless Legs - A need to move the legs without any apparent reason. Sometimes there is pain, twitching, jerking, cramping, burning, or a creepy-crawly sensation associated with the movements. It worsens when a person is inactive, and can interrupt sleep so one feels the need to move to gain some relief. Zyban side effects

Shaking - Uncontrolled quivering and trembling as if one is cold and chilled. Zyban side effects

Sluggishness - Lack of alertness and energy, as well as being slow to respond or perform in life. Zyban side effects

Tics - A contraction of a muscle causing a repeated movement not under the control of the person, usually on the face or limbs. Zyban side effects

Tremor - A nervous and involuntary vibrating or quivering of the body. Zyban side effects

Twitching - Sharp, jerky and spastic motion, sometimes with a sharp sudden pain. Zyban side effects

Vertigo - A sensation of dizziness with disorientation and confusion. Zyban side effects

MENTAL AND EMOTIONAL

Aggravated Nervousness - A progressively worsening, irritated, and troubled state of mind. Zyban side effects

Agitation – A suddenly violent and forceful emotionally disturbed state of mind. Zyban side effects

Amnesia - Long term or short term, partial or full memory loss created by emotional or physical shock, severe illness, or a blow to the head where the person was caused pain and became unconscious. Zyban side effects

Anxiety Attack- Sudden and intense feelings of fear, terror, and dread, physically creating shortness of breath, sweating, trembling and heart palpitations. Zyban side effects

Apathy - Complete lack of concern or interest for things that ordinarily would be regarded as important or would normally cause concern. Zyban side effects

Appetite Decreased - Having a lack of appetite despite the ordinary caloric demands of living, with a resulting unintentional loss of weight. Zyban side effects

Appetite Increased - An unusual hunger causing one to overeat. Zyban side effects

Auditory Hallucination - Hearing things without the voices or noises being present. Zyban side effects

Bruxism - Grinding and clenching of teeth while sleeping. Zyban side effects

Carbohydrate Craving - A drive or craving to eat foods rich in sugar and starches (sweets, snacks and junk foods) that intensifies as the diet becomes more and more unbalanced due to the unbalancing of the proper nutritional requirements of the body. Zyban side effects

Concentration Impaired - Unable to easily focus your attention for long periods of time. Zyban side effects

Confusion – An inability to think clearly or understand, preventing logical decision-making. Zyban side effects

Crying (Abnormal) - Unusual and not normal (abnormal) fits of weeping for short or long periods of time for no apparent reason. Zyban side effects

Depersonalization - A condition in which one has lost a normal sense of personal identity. Zyban side effects

Depression - A hopeless feeling of failure, loss and sadness that can deteriorate into thoughts of death. A very common reaction to or side effect of, psychiatric drugs. Zyban side effects

Disorientation - A loss of sense of direction, place, time or surroundings, as well as mental confusion regarding one’s personal identity. Zyban side effects

Dreaming (Abnormal) - Dreaming that leaves a very clear, detailed picture and impression when awake that can last for a long period of time and sometimes be unpleasant. Zyban side effects

Emotional Lability - Suddenly breaking out in laughter or crying or doing both without being able to control the outburst of emotion. These episodes are unstable as they are caused by experiences or events that normally would not have this effect on an individual. Zyban side effects

Excitability - Uncontrollably responding to stimuli (one’s environment). Zyban side effects

Feeling Unreal - The awareness that one has an undesirable emotion like fear, but can’t seem to shake off the irrational feeling. For example, feeling like one is going crazy, but rationally knowing that it is not true. The quality of this side effect resembles being in a bad dream and not being able to wake up. Zyban side effects

Forgetfulness - Unable to remember what one ordinarily would remember. Zyban side effects

Insomnia - Sleeplessness caused by physical stress, mental stress or stimulants, such as coffee or medications; a condition of being abnormally awake when one would ordinarily be able to fall and remain asleep. Zyban side effects

Irritability – An abnormal reaction of being annoyed or disturbed in response to a stimulus (the environment: that which is happening around one). Zyban side effects

Jitteriness - Nervous fidgeting without apparent cause. Zyban side effects

Lethargy - Mental and physical sluggishness and apathy (a feeling of hopelessness that “nothing can be done”) which can deteriorate into an unconscious state resembling deep sleep. A numbed state of mind. Zyban side effects

Libido Decreased - An abnormal loss of sexual energy or desire. Zyban side effects

Panic Reaction - A sudden, overpowering, chaotic and confused mental state of terror resulting in being doubt-ridden, often accompanied with hyperventilation and extreme anxiety. Zyban side effects

Restlessness Aggravated - A constantly worsening troubled state of mind characterized by the person being increasingly nervous, unable to relax, and easily angered. Zyban side effects

Somnolence - Feeling sleepy all the time or having a condition of semi-consciousness. Zyban side effects

Suicide Attempt - An unsuccessful deliberate attack on one’s own life with the intention of ending it. Zyban side effects

Suicidal Tendency - Most likely will attempt to kill oneself. Zyban side effects

Tremulousness Nervous - Very jumpy, shaky, and uneasy, while feeling fearful and timid. The condition is characterized by thoughts dreading the future, involuntary quivering, trembling, and feeling distressed and suddenly upset. Zyban side effects

Yawning - Involuntary opening of the mouth with deep inhalation of air. Zyban side effects

REPRODUCTIVE FEMALE

Breast Neoplasm - A tumor or cancer, of either of the two milk-secreting organs on the chest of a woman. Zyban side effects

Menorrhagia - Abnormally heavy menstrual period or a menstrual flow that has continued for an unusually long period of time. Zyban side effects

Menstrual Cramps - Painful, involuntary uterus contractions that women experience around the time of their menstrual period, sometimes causing pain in the lower back and thighs. Zyban side effects

Menstrual Disorder - A disturbance or derangement in the normal function of a woman’s menstrual period. Zyban side effects

Pelvic Inflammation - The reaction of the body to infectious, allergic, or chemical irritation, which, in turn, causes tissue irritation, injury, or bacterial infection characterized by pain, redness, swelling, and sometimes loss of function. The reaction usually begins in the uterus and spreads to the fallopian tubes, ovaries, and other areas in the hipbone region of the body. Zyban side effects

Premenstrual Syndrome - Various physical and mental symptoms commonly experienced by women of childbearing age usually 2 to 7 days before the start of their monthly period. There are over 150 symptoms including eating binges, behavioral changes, moodiness, irritability, fatigue, fluid retention, breast tenderness, headaches, bloating, anxiety, and depression. The symptoms cease shortly after the period begins, and disappear with menopause. Zyban side effects

Spotting Between Menses - Abnormal bleeding between periods. Unusual spotting between menstrual cycles. Zyban side effects

RESPIRATORY SYSTEM (ORGANS INVOLVED IN BREATHING)

Asthma - A disease of the breathing system initiated by an allergic reaction or a chemical, with repeated attacks of coughing, sticky mucus, wheezing, shortness of breath, and a tight feeling in the chest. The disease can reach a state where it stops a person from exhaling, leading to unconsciousness and death. Zyban side effects

Breath Shortness - Unnatural breathing, using a lot of effort resulting in not enough air taken in by the body. Zyban side effects

Bronchitis - Inflammation of the two main breathing tubes leading from the windpipe to the lungs. The disease is marked by coughing, a low-grade fever, chest pain, and hoarseness, caused by an allergic reaction. Zyban side effects

Coughing - A cough is the response to an irritation, such as mucus, that causes the muscles controlling the breathing process to expel air from the lungs suddenly and noisily to keep the air passages free from the irritating material. Zyban side effects

Laryngitis - Inflammation of the voice box characterized by hoarseness, sore throat, and coughing. It can be caused by straining the voice or exposure to infectious, allergic or chemical irritation. Zyban side effects

Nasal Congestion - The presence of an abnormal amount of fluid in the nose. Zyban side effects

Pneumonia Tracheitis - Bacterial infection of the air passageways and lungs that causes redness, swelling and pain in the windpipe. Other symptoms are high fever, chills, pain in the chest, difficulty breathing, and coughing with mucus discharge. Zyban side effects

Rhinitis - Chemical irritation causing pain, redness and swelling in the mucus membranes of the nose. Zyban side effects

Sinus Congestion - The mucus-lined areas of the bones in the face that are thought to help warm and moisten air to the nose. These areas become clogged with excess fluid or become infected. Zyban side effects

Sinus Headache - An abnormal amount of fluid in the hollows of the facial bone structure, especially around the nose. This excess fluid creates pressure, causing pain in the head. Zyban side effects

Sinusitis - The body reacting to chemical irritation causing redness, swelling and pain in the area of the hollows in the facial bones especially around the nose. Zyban side effects

SKELETAL

Neck/Shoulder Pain - Hurtful sensations of the nerve endings caused by damage to the tissues in the neck and shoulder, signaling danger of disease. Zyban side effects

SKIN AND APPENDAGES (SKIN, LEGS AND ARMS)

Acne - Eruptions of the oil glands of the skin, especially on the face, marked by pimples, blackheads, whiteheads, bumps, and more severely, by cysts and scarring. Zyban side effects

Alopecia - The loss of hair, baldness. Zyban side effects

Angioedema - Intense itching and swelling welts on the skin called hives caused by an allergic reaction to internal or external agents. The reaction is common to a food or a drug. Chronic cases can last for a long period of time. Zyban side effects

Dermatitis - Generally irritated skin that can be caused by any of a number of irritating conditions, such as parasites, fungus, bacteria, or foreign substances causing an allergic reaction. It is a general inflammation of the skin. Zyban side effects

Dry Lips - The lack of normal moisture in the fleshy folds that surround the mouth. Zyban side effects

Dry Skin - The lack of normal moisture/oils in the surface layer of the body. The skin is the body’s largest organ. Zyban side effects

Epidermal Necrolysis - An abnormal condition in which a large portion of the skin becomes intensely red and peels off like a second-degree burn. Often the symptoms include blistering. Zyban side effects

Eczema - A severe or continuing skin disease marked by redness, crusting and scaling, with watery blisters and itching. It is often difficult to treat and will sometimes go away only to reappear again. Zyban side effects

Folliculitis - Inflammation of a follicle (small body sac), especially a hair follicle. A hair follicle contains the root of a hair. Zyban side effects

Furunculosis - Skin boils that show up repeatedly. Zyban side effects

Lipoma - A tumor of mostly fat cells that is not health endangering. Zyban side effects

Pruritus - Extreme itching of often-undamaged skin. Zyban side effects

Rash - A skin eruption or discoloration that may or may not be itching, tingling, burning, or painful. It may be caused by an allergy, a skin irritation or a skin disease. Zyban side effects

Skin Nodule - A bulge, knob, swelling or outgrowth in the skin that is a mass of tissue or cells. Zyban side effects

RELATED TO THE SENSES

Conjunctivitis - Infection of the membrane that covers the eyeball and lines the eyelid, caused by a virus, allergic reaction, or an irritating chemical. It is characterized by redness, a discharge of fluid and itching. Zyban side effects

Dry Eyes - Not enough moisture in the eyes. Zyban side effects

Earache - Pain in the ear. Zyban side effects

Eye Infection - The invasion of the eye tissue by a bacteria, virus, fungus, etc, causing damage to the tissue, with toxicity. Infection spreading in the body progresses into disease. Zyban side effects

Eye Irritation - An inflammation of the eye. Zyban side effects

Metallic Taste - A range of taste impairment from distorted taste to a complete loss of taste. Zyban side effects

Pupils Dilated - Abnormal expansion of the black circular opening in the center of the eye. Zyban side effects

Taste Alteration - Abnormal flavor detection in food. Zyban side effects

Tinnitus - A buzzing, ringing, or whistling sound in one or both ears occurring from the use of certain drugs. Zyban side effects

Vision Abnormal - Normal images are seen differently by the viewer than by others. Zyban side effects

Vision Blurred - Eyesight is dim or indistinct and hazy in outline or appearance. Zyban side effects

Visual Disturbance - Eyesight is interfered with or interrupted. Some disturbances are light sensitivity and the inability to easily distinguish colors. Zyban side effects

URINARY SYSTEM

Blood in Urine - Blood is present when one empties the liquid waste product of the kidneys through the bladder by urinating in the toilet, turning the water pink to bright red. Or you can see spots of blood in the water after urinating. Zyban side effects

Dysuria - Difficult or painful urination. Zyban side effects

Kidney Stone - Small hard masses of salt deposits that the kidney forms. Zyban side effects

Urinary Frequency - Having to urinate more often than usual or between unusually short time periods. Zyban side effects

Urinary Tract Infection - An invasion of bacteria, viruses, fungi, etc., of the system in the body. This starts with the kidneys, which eliminate urine from the body. If the invasion goes unchecked, it can injure tissue and progress into disease. Zyban side effects

Urinary Urgency - A sudden compelling urge to urinate, accompanied by discomfort in the bladder. Zyban side effects

UROGENITAL (URINARY TRACT AND/OR GENITAL STRUCTURES OR FUNCTIONS)

Anorgasmia - Failure to experience an orgasm. Zyban side effects

Ejaculation Disorder - Dysfunction of the discharge of semen during orgasm. Zyban side effects

Menstrual Disorder - Dysfunction of the discharge during the monthly menstrual cycle. Zyban side effects

VIOLENT OR PHYSICALLY DANGEROUS SIDE EFFECTS

Acute Renal Failure - The kidneys stop excreting waste products properly, leading to rapid poisoning (toxicity) in the body. Zyban side effects

Anaphylaxis - A violent, sudden, and severe drop in blood pressure caused by a re-exposure to a foreign protein or a second dosage of a drug that may be fatal unless emergency treatment is given right away. Zyban side effects

Grand Mal Seizures (or Convulsions) - A recurring sudden, violent and involuntary attack of muscle spasms with a loss of consciousness. Zyban side effects

Neuroleptic Malignant Syndrome - A life threatening, rare reaction to an anti-psychotic drug marked by fever, muscular rigidity, changed mental status, and dysfunction of the autonomic nervous system. Zyban side effects

Pancreatitis - Chemical irritation with redness, swelling, and pain in the pancreas where digestive enzymes and hormones are secreted. Zyban side effects

QT Prolongation - A very fast heart rhythm disturbance that is too fast for the heart to beat effectively so the blood to the brain falls, causing a sudden loss of consciousness and may cause sudden cardiac death. Zyban side effects

Rhabdomyolysis - The breakdown and release of muscle fibers into the circulatory system. Some of the fibers are poisonous to the kidney and frequently result in kidney damage. Zyban side effects

Serotonin Syndrome - A disorder brought on by excessive levels of serotonin. It is caused by drugs and can be fatal. Symptoms include euphoria, drowsiness, sustained and rapid eye movement, agitation, reflexes overreacting, rapid muscle contractions, abnormal movements of the foot, clumsiness, feeling drunk and dizzy without any intake of alcohol, jaw muscles contracting and relaxing excessively, muscle twitching, high body temperature, rigid body, rotating mental status - including confusion and excessive happiness - diarrhea and loss of consciousness. Zyban side effects

Thrombocytopenia - An abnormal decrease in the number of blood platelets in the circulatory system. A decrease in platelets would cause a decrease in the ability of the blood to clot when necessary. Zyban side effects

Torsades de Pointes – An unusually rapid heart rhythm starting in the lower heart chambers. If the short bursts of rapid heart rhythm continue for a prolonged period, it can degenerate into a more rapid rhythm and can be fatal. Zyban side effects