英文药名: Effexor XR(Venlafaxine Extended Release Capsules)
中文药名: 怡诺思XR(文拉法辛缓释胶囊)
生产厂家: Wyeth Ayerst Pharmaceuticals
药品名称和成分
怡诺思XR(文拉法辛缓释胶囊) 药理毒理
本品及其活性代谢物是神经系统5-羟色胺和去甲肾上腺素的再摄取的强抑制剂,使突触间隙中这两种单胺递质浓度增高,发挥抗抑郁作用。 药代动力学
口服吸收迅速而良好,单剂给药时,仅有12.6%进入循环,食物对本品及其代谢物的吸收无影响。t1/2平均为4小时,表观分布容积为6L/kg,主要在肝代谢,原药及其代谢物大部分由肾脏排泄。肾功能受损使万拉法辛与其代谢物大约降低55%,消除半衰期明显延长,因此,在肌酐清除率<30ml/min的肾病病人中,使用本品时应注意调整剂量。对肝功能损害者必须减少剂量。 适应症
抑郁症。 用法用量
口服。开始剂量为一次25mg,一日2~3次,逐渐增至一日75~225mg,分2~3次口服。最高量为一日350mg。 如果您有任何疑问,请遵医嘱。 不良反应
可有胃肠道不适如恶心、厌食、腹泻等。亦可出现头痛、不安、无力、嗜睡、失眠、头晕或震颤等。少见不良反应有过敏性皮疹及性功能减退。可引起血压升高,且与剂量呈正相关。大剂量时可诱发癫痫。突然停药可见撤药综合症如失眠、焦虑、恶心、出汗、震颤、眩晕或感觉异常等。 禁忌
对本品过敏者禁用、正在服用单胺氧化酶抑制剂的患者禁用。 孕妇及哺乳期妇女用药
慎用。 儿童用药
慎用。 老年患者用药
慎用。 注意事项
1.闭角型青光眼、癫痫患者慎用。 2.严重心脏疾患、高血压、甲状腺疾病、血液病患者慎用。 3.肝肾功能不全者慎用或减少用量。 4.用药过程中应监测血压,血压升高应减量或停药。 5.停用时应逐渐减少剂量,已应用本品6周或更长时间者,应在2周内逐渐减量。 6.患者出现有转向躁狂发作倾向时应立即停药。 7.用药期间不宜驾驶车辆、操作机械或高空作业。 药物相互作用
1.与选择性5-羟色胺再摄取抑制剂或与单胺氧化酶抑制剂合用时,可引起高血压、僵硬、肌阵挛、不自主运动、焦虑不安、意识障碍乃至昏迷和死亡。因此,在由一种药物转换为另一种药物治疗时,需7~14日的洗净期。 2.与奎尼丁合用时,可使本品血药浓度升高。 3.与-受体阻滞剂普萘洛尔、美多洛尔、噻吗咯尔或与三环类抗抑郁药阿米替林、氯米帕明、丙咪嗪或与抗心律失常药普鲁帕酮,可待因和美沙芬等合用,可竞争性地抑制本品的代谢。 4.与西米替丁合用时,可使本品清除率降低。 药物过量
药物过量中毒指征为呆滞不动和昏睡。应对症治疗及支持疗法。 贮藏
密封,在干燥处保存。
Brand Name Effexor XR Options - Manufacturer: Wyeth-Ayerst
Effexor XR Description Buy Effexor XR, an effective medicine that is used as a serotonin and norepinephrine reuptake inhibitor (SNRI) and is helpful in taking care of depression, as well as general/social anxiety disorder, or panic disorder. Your doctor can determine what else this medicine can treat.
Effexor XR Directions Always follow the directions for the correct usage of Effexor XR, this is as provided by your doctor. Brand and generic Effexor XR comes included with a medication guide. Read it carefully and consult with your doctor, nurse, or pharmacist concerning any questions that you may have. It must be noted that this medicine has to be taken with food and swallowed whole. Never crush, break, chew or attempt to place the medicine in liquid. For those that have difficulty in swallowing Effexor XR whole, the contents can be broken up and taken with applesauce. Do not chew this; swallow it immediately and with a full glass of water (8oz/240ml). Check with your doctor before stopping treatment. Side effects include: • numbness or tingling of the skin • dizziness • mental or mood changes • drowsiness • confusion • headache • increased sweating • nausea • ringing in the ears • seizures • tremor • trouble sleeping • Unusual tiredness. Keep medicine at room temperature (68 and 77 degrees Fahrenheit/20 and 25 degrees Celsius), away from heat and light – take it in a timely manner each day. Never miss a dose - If you miss a dose of this medicine, take it even if you feel better. If it is almost time for your next dose, then skip the missed dose and go back to your regular dosing schedule. Never double dose.
Effexor XR Cautions Do not take Effexor XR especially if you are allergic to it, or any part of it. It may take a few weeks before you begin to improve in regards to your symptoms. Don’t exceed the suggested dose or buy Effexor XR medication packages for longer than prescribed - this is without first checking with your doctor. Laboratory/medical tests (this includes blood pressure and blood cholesterol levels) can be performed to check for side effects. Keep all doctor and laboratory appointments when you decide to buy brand or generic Effexor XR for medicinal use. Extra monitoring is advised for the initial phases, or if a dosage changes. Children and teenagers (and sometimes adults) may be at increased risk for suicidal thoughts or actions. Patients who take this should be watched closely. Call the doctor at immediately new, worsening, or abrupt symptoms such as miserable mood; nervous, agitated, or short-tempered behavior; panic attacks; or for any other unusual change in either mood or behavior occur. This medicine could induce lethargy, light-headedness and fuzzy vision. Do not drive or operate machinery, or perform anything else that may be dangerous; this is until you know how the medicine reacts with you. Using this medicine alone, or with any other medicines, or even with alcohol will hinder your ability to work on potentially dangerous tasks. Do not drink while on Effexor XR. Brand and generic Effexor XR will add to the effects of alcohol and other depressants. Your pharmacist can assist you and tell you which medicines are depressants. A possible fatal syndrome that can be caused by this medicine is Serotonin syndrome. Your doctor should be contacted immediately if you experience symptoms of: • Agitation • Confusion • Hallucinations • Coma • Fever • Fast or irregular heartbeat • Tremor • Excessive sweating • Nausea • Vomiting • Diarrhea If your doctor instructs you to stop taking this medicine, then you must wait for a certain period of time prior to taking certain other medicines (such as Maoi's, Nefazodone). Check with your doctor or pharmacist before you take any new medicine (either over the counter or prescribed). Low blood sodium levels may occur in the elderly, so caution is advised before they take it. Suicidal thoughts and actions may occur with teenagers and children; therefore caution is advised before they start a regime. You can buy Effexor XR, but it may cause weight and growth changes. Children and teenagers may need regular weight and growth checks while they take this medicine. For women: this medicine may cause harm to the fetus if it is used during the last three months of pregnancy. If you plan on becoming pregnant, discuss with your doctor the benefits and risks of using this medicine during pregnancy. This medicine is excreted in breast milk. Do not nurse while taking this medicine.
Effexor XR Side Effects Some of the side effects that may occur while on Effexor XR include: • Abnormal dreams • Blurred vision • Changes in taste • constipation • Decreased sexual desire or ability • Dizziness, drowsiness • dry mouth • Flushing • headache • increased sweating • loss of appetite • nausea • nervousness • stomach upset • trouble sleeping • vomiting • weakness • weight loss • Excessive yawning
Consult your doctor if they continue to be bothersome. Your doctor should be immediately informed if you experience vision problems, ringing in the ears, or major weight loss. Also, contact your doctor straight away if you experience any: • Bizarre behavior • Chest pain or discomfort • Shortness of breath • Severe or persistent cough • Confusion • Fast or irregular heartbeat • Fever • Chills • A persistent sore throat • New or worsening agitation • Anxiety • Panic attacks • aggressiveness • Impulsiveness • Irritability • Hostility • Restlessness, or inability to sit still • Seizures • Severe or persistent nervousness or trouble sleeping • Severe or persistent headache • Dizziness, or stomach pain • Suicidal thoughts or attempts • Tremors • Unusual bruising or bleeding • Unusual or severe mental or mood changes • A worsening of your depression
Seek immediate medical assistance if an allergic reaction occurs. Symptoms of an allergic reaction include rash, itching, swelling, severe dizziness, or trouble breathing. If you notice any unusual effects, contact your doctor, nurse or pharmacist.
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Effexor XR Active Ingredients Venlafaxine XR ---------------------------------------------------------------- 包装规格: ·150mg *28胶囊 ·37.5mg *28胶囊 ·75mg *28胶囊 ·150mg *30胶囊 ·225mg *30胶囊 ·37.5mg *30胶囊 ·75mg *30胶囊
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