呋塞米也称速尿，临床上用于治疗心脏性水肿、肾性水肿、肝硬化腹水、机能障碍或血管障碍所引起的周围性水肿，并可促使上部尿道结石的排出。其利尿作用迅速、强大，多用于其它利尿药无效的严重病例。由于水、电解质丢失明显等原因，故不宜常规使用。静脉给药（20～80mg）可治疗肺水肿和脑水肿。药物中毒时可用以加速毒物的排泄。
英文药名: Lasix (Furosemide Tablets)
中文药名: 速尿（呋塞米片）
生产厂家: Aventis
药品名称
【别名】呋喃苯胺酸; 呋塞米; 腹安酸; 利尿磺胺; 利尿灵; 速尿; 速尿灵
【外文名】Furosemide, Frusemide, LASIX, Diural, Furanlral, Seguril, Urex
药理作用
1、利尿：作用强大、迅速而短暂。
(1)个体差异明显，应注意剂量个体化。
(2)利尿作用不受酸碱平衡失调及电解质紊乱的影响。
(3)易引起低血钾、低盐综合征及低氯性碱中毒。低血钾最常见
(4)还促进Ca2＋、Mg2＋排出，而抑制尿酸排出。
2、扩张血管：
(1)能扩张肾血管，增加肾血流量，改变肾皮质内血流分布；
(2)还能扩张小静脉，减少回心血量，减轻心脏负荷，降低左室充盈压，减轻肺水肿。
扩血管机制可能与本药促进前列腺素酶合成，抑制其分解有关。
适应症
临床上用于治疗心脏性水肿、肾性水肿、肝硬变腹水、功能障碍或血管障碍所引起的周围性水肿，并可促使上部尿道结石的排出。其利尿作用迅速、强大，多用于其他利尿药无效的严重病人。由于水、电解质丢失明显等原因，故不宜常规使用。静脉给药（２０～８０ｍｇ）可治疗肺水肿和脑水肿。药物中毒时可用以加速毒物的排泄。
用法用量
1.肌注或静注：每次２０ｍｇ，隔日１次，必要时亦可１日１～２次。１日量视需要可增至１２０ｍｇ。静注必须缓慢，不宜与其他药物混合注射。儿童用量酌减。
2.口服：开始时每日４０ｍｇ，以后根据需要可增至每日８０～１２０ｍｇ。当每日剂量超过４０ｍｇ时，可以每４小时１次分服。儿童口服量开始按每千克体重１～２ｍｇ，再视情况酌增。
长期（７～１０日）用药后利尿作用消失，故需长期应用者，宜采取间竭疗法：给药１～３日，停药２～４日。任何疑问，请遵医嘱！

不良反应
1、水与电解质紊乱，常为过度利尿所引起，表现为低血容量、低血钾、低血钠、低氯性碱血症，长期应用还可引起低血镁。
2、耳毒性，表现为耳鸣、听力减退或暂时性耳聋，呈剂量依赖性。耳毒性的发生机制可能与药物引起内耳淋巴液电解质成分改变有关。肾功能不全或同时使用其他耳毒性药物，如并用氨基糖苷类抗生素时较易发生耳毒性。
3、高尿酸血症，袢利尿药可能造成高尿酸血症，并引发痛风。
4、其他，可有恶心、呕吐、大剂量时尚可出现胃肠出血。
注意事项
1.可能出现轻微恶心、腹泻、药疹、瘙痒、视力模糊等不良反应，有时可发生起立性眩晕、乏力、疲倦、肌肉痉挛、口渴，少数病人有白细胞减少，个别病人出现血小板减少，多形性红斑、直立性低血压。长期应用可致胃及十二指肠溃疡。
2.由于能减少尿酸排出，故多次应用后能产生尿酸过多症，个别病人长期应用可产生急性痛风。
3.糖尿病病人应用后可使血糖增高；尽管其升血糖远较噻嗪类利尿药弱，但与降血糖药合并应用时，仍有使血糖增高的可能。
4.由于利尿作用迅速、强大，因而要注意掌握开始剂量，防止过度利尿，引起脱水和电解质失衡。
5.肝炎病人服用后，因电解质（特别是钾离子）过度丢失，易产生肝昏迷。
6.长期大量用药时，应注意检查血中电解质浓度。顽固性水肿病人特别容易出现低钾症状，在同时使用洋地黄或排钾的甾体激素时，更应注意补充钾盐。
7.在脱水的同时，可出现可逆性血尿素氮水平升高。如果肌酐水平升高不显著和肾功能无损害时，可继续使用本品。
8.使用第１个月，要定期检查血清电解质、二氧化碳和血中尿素氮水平。与其他利尿药一样，当治疗进展中的肾脏疾患而有血清尿素氮值增加和少尿现象发生时，应立即停止用药。
9.能增强降压药的作用，故合并用药时，降压药的用量应适当减少。
10.因结构上本品是与氯噻嗪结构相似的一类磺胺型化合物，能降低动脉对升压胺（如去甲肾上腺素）的反应，并能增加筒箭毒碱的肌松驰及麻痹作用，故手术前１周应停用。
11.低钾血症、超量服用洋地黄、肝昏迷病人禁用。晚期肝硬变病人慎用。
12.大剂量静注过快时，可出现听力减退或暂时性耳聋。与氨基糖甙类抗生素配伍应用，更易引起听力减退。
规格
呋塞米口服液: 10mg/mlX 120ml。
注射液：每支２０ｍｇ（２ｍｌ）。
片剂：每片20mg,40mg,80mg,500mg。
LASIX®
(furosemide)
Tablets 20, 40, and 80 mg
WARNING
LASIX® (furosemide) is a potent diuretic which, if given in excessive amounts, can lead to a profound diuresis with water and electrolyte depletion. Therefore, careful medical supervision is required and dose and dose schedule must be adjusted to the individual patient's needs. (See DOSAGE AND ADMINISTRATION.)
DESCRIPTION
LASIX® is a diuretic which is an anthranilic acid derivative. LASIX tablets for oral administration contain furosemide as the active ingredient and the following inactive ingredients: lactose monohydrate NF, magnesium stearate NF, starch NF, talc USP, and colloidal silicon dioxide NF. Chemically, it is 4-chloro-N-furfuryl-5-sulfamoylanthranilic acid. LASIX is available as white tablets for oral administration in dosage strengths of 20, 40 and 80 mg. Furosemide is a white to off-white odorless crystalline powder. It is practically insoluble in water, sparingly soluble in alcohol, freely soluble in dilute alkali solutions and insoluble in dilute acids.
The CAS Registry Number is 54-31-9.
The structural formula is as follows:
CLINICAL PHARMACOLOGY
Investigations into the mode of action of LASIX have utilized micropuncture studies in rats, stop flow experiments in dogs and various clearance studies in both humans and experimental animals. It has been demonstrated that LASIX inhibits primarily the absorption of sodium and chloride not only in the proximal and distal tubules but also in the loop of Henle. The high degree of efficacy is largely due to the unique site of action. The action on the distal tubule is independent of any inhibitory effect on carbonic anhydrase and aldosterone.
Recent evidence suggests that furosemide glucuronide is the only or at least the major biotransformation product of furosemide in man. Furosemide is extensively bound to plasma proteins, mainly to albumin. Plasma concentrations ranging from 1 to 400 μg/mL are 91 to 99% bound in healthy individuals. The unbound fraction averages 2.3 to 4.1% at therapeutic concentrations.
The onset of diuresis following oral administration is within 1 hour. The peak effect occurs within the first or second hour. The duration of diuretic effect is 6 to 8 hours.
In fasted normal men, the mean bioavailability of furosemide from LASIX Tablets and LASIX Oral Solution is 64% and 60%, respectively, of that from an intravenous injection of the drug. Although furosemide is more rapidly absorbed from the oral solution (50 minutes) than from the tablet (87 minutes), peak plasma levels and area under the plasma concentration-time curves do not differ significantly. Peak plasma concentrations increase with increasing dose but times-to-peak do not differ among doses. The terminal half-life of furosemide is approximately 2 hours.
Significantly more furosemide is excreted in urine following the IV injection than after the tablet or oral solution. There are no significant differences between the two oral formulations in the amount of unchanged drug excreted in urine.
Geriatric Population
Furosemide binding to albumin may be reduced in elderly patients. Furosemide is predominantly excreted unchanged in the urine. The renal clearance of furosemide after intravenous administration in older healthy male subjects (60–70 years of age) is statistically significantly smaller than in younger healthy male subjects (20–35 years of age). The initial diuretic effect of furosemide in older subjects is decreased relative to younger subjects. (See PRECAUTIONS: Geriatric Use.)
INDICATIONS AND USAGE
Edema
LASIX is indicated in adults and pediatric patients for the treatment of edema associated with congestive heart failure, cirrhosis of the liver, and renal disease, including the nephrotic syndrome. LASIX is particularly useful when an agent with greater diuretic potential is desired.
Hypertension
Oral LASIX may be used in adults for the treatment of hypertension alone or in combination with other antihypertensive agents. Hypertensive patients who cannot be adequately controlled with thiazides will probably also not be adequately controlled with LASIX alone.
CONTRAINDICATIONS
LASIX is contraindicated in patients with anuria and in patients with a history of hypersensitivity to furosemide.
WARNINGS
In patients with hepatic cirrhosis and ascites, LASIX therapy is best initiated in the hospital. In hepatic coma and in states of electrolyte depletion, therapy should not be instituted until the basic condition is improved. Sudden alterations of fluid and electrolyte balance in patients with cirrhosis may precipitate hepatic coma; therefore, strict observation is necessary during the period of diuresis. Supplemental potassium chloride and, if required, an aldosterone antagonist are helpful in preventing hypokalemia and metabolic alkalosis.
If increasing azotemia and oliguria occur during treatment of severe progressive renal disease, LASIX should be discontinued.
Cases of tinnitus and reversible or irreversible hearing impairment and deafness have been reported. Reports usually indicate that LASIX ototoxicity is associated with rapid injection, severe renal impairment, the use of higher than recommended doses, hypoproteinemia or concomitant therapy with aminoglycoside antibiotics, ethacrynic acid, or other ototoxic drugs. If the physician elects to use high dose parenteral therapy, controlled intravenous infusion is advisable (for adults, an infusion rate not exceeding 4 mg LASIX per minute has been used). (See PRECAUTIONS: Drug Interactions)
PRECAUTIONS
General
Excessive diuresis may cause dehydration and blood volume reduction with circulatory collapse and possibly vascular thrombosis and embolism, particularly in elderly patients. As with any effective diuretic, electrolyte depletion may occur during LASIX therapy, especially in patients receiving higher doses and a restricted salt intake. Hypokalemia may develop with LASIX, especially with brisk diuresis, inadequate oral electrolyte intake, when cirrhosis is present, or during concomitant use of corticosteroids, ACTH, licorice in large amounts, or prolonged use of laxatives. Digitalis therapy may exaggerate metabolic effects of hypokalemia, especially myocardial effects.
All patients receiving LASIX therapy should be observed for these signs or symptoms of fluid or electrolyte imbalance (hyponatremia, hypochloremic alkalosis, hypokalemia, hypomagnesemia or hypocalcemia): dryness of mouth, thirst, weakness, lethargy, drowsiness, restlessness, muscle pains or cramps, muscular fatigue, hypotension, oliguria, tachycardia, arrhythmia, or gastrointestinal disturbances such as nausea and vomiting. Increases in blood glucose and alterations in glucose tolerance tests (with abnormalities of the fasting and 2-hour postprandial sugar) have been observed, and rarely, precipitation of diabetes mellitus has been reported.
In patients with severe symptoms of urinary retention (because of bladder emptying disorders, prostatic hyperplasia, urethral narrowing), the administration of furosemide can cause acute urinary retention related to increased production and retention of urine. Thus, these patients require careful monitoring, especially during the initial stages of treatment.
In patients at high risk for radiocontrast nephropathy LASIX can lead to a higher incidence of deterioration in renal function after receiving radiocontrast compared to high-risk patients who received only intravenous hydration prior to receiving radiocontrast.
In patients with hypoproteinemia (e.g., associated with nephrotic syndrome) the effect of LASIX may be weakened and its ototoxicity potentiated.
Asymptomatic hyperuricemia can occur and gout may rarely be precipitated.
Patients allergic to sulfonamides may also be allergic to LASIX. The possibility exists of exacerbation or activation of systemic lupus erythematosus.
As with many other drugs, patients should be observed regularly for the possible occurrence of blood dyscrasias, liver or kidney damage, or other idiosyncratic reactions.
Information for Patients
Patients receiving LASIX should be advised that they may experience symptoms from excessive fluid and/or electrolyte losses. The postural hypotension that sometimes occurs can usually be managed by getting up slowly. Potassium supplements and/or dietary measures may be needed to control or avoid hypokalemia.
Patients with diabetes mellitus should be told that furosemide may increase blood glucose levels and thereby affect urine glucose tests. The skin of some patients may be more sensitive to the effects of sunlight while taking furosemide.
Hypertensive patients should avoid medications that may increase blood pressure, including over-the-counter products for appetite suppression and cold symptoms.
Laboratory Tests
Serum electrolytes (particularly potassium), CO2, creatinine and BUN should be determined frequently during the first few months of LASIX therapy and periodically thereafter. Serum and urine electrolyte determinations are particularly important when the patient is vomiting profusely or receiving parenteral fluids. Abnormalities should be corrected or the drug temporarily withdrawn. Other medications may also influence serum electrolytes.
Reversible elevations of BUN may occur and are associated with dehydration, which should be avoided, particularly in patients with renal insufficiency.
Urine and blood glucose should be checked periodically in diabetics receiving LASIX, even in those suspected of latent diabetes.
LASIX may lower serum levels of calcium (rarely cases of tetany have been reported) and magnesium. Accordingly, serum levels of these electrolytes should be determined periodically.
In premature infants LASIX may precipitate nephrocalcinosis/nephrolithiasis, therefore renal function must be monitored and renal ultrasonography performed. (See PRECAUTIONS: Pediatric Use)
Drug Interactions
LASIX may increase the ototoxic potential of aminoglycoside antibiotics, especially in the presence of impaired renal function. Except in life-threatening situations, avoid this combination.
LASIX should not be used concomitantly with ethacrynic acid because of the possibility of ototoxicity. Patients receiving high doses of salicylates concomitantly with LASIX, as in rheumatic disease, may experience salicylate toxicity at lower doses because of competitive renal excretory sites.
There is a risk of ototoxic effects if cisplatin and LASIX are given concomitantly. In addition, nephrotoxicity of nephrotoxic drugs such as cisplatin may be enhanced if LASIX is not given in lower doses and with positive fluid balance when used to achieve forced diuresis during cisplatin treatment.
LASIX has a tendency to antagonize the skeletal muscle relaxing effect of tubocurarine and may potentiate the action of succinylcholine.
Lithium generally should not be given with diuretics because they reduce lithium's renal clearance and add a high risk of lithium toxicity.
LASIX combined with angiotensin converting enzyme inhibitors or angiotensin II receptor blockers may lead to severe hypotension and deterioration in renal function, including renal failure. An interruption or reduction in the dosage of LASIX, angiotensin converting enzyme inhibitors, or angiotensin receptor blockers may be necessary.
Potentiation occurs with ganglionic or peripheral adrenergic blocking drugs.
LASIX may decrease arterial responsiveness to norepinephrine. However, norepinephrine may still be used effectively.
Simultaneous administration of sucralfate and LASIX tablets may reduce the natriuretic and antihypertensive effects of LASIX. Patients receiving both drugs should be observed closely to determine if the desired diuretic and/or antihypertensive effect of LASIX is achieved. The intake of LASIX and sucralfate should be separated by at least two hours.
In isolated cases, intravenous administration of LASIX within 24 hours of taking chloral hydrate may lead to flushing, sweating attacks, restlessness, nausea, increase in blood pressure and tachycardia. Use of LASIX concomitantly with chloral hydrate is, therefore, not recommended.
Phenytoin interferes directly with renal action of LASIX. There is evidence that treatment with phenytoin leads to decrease intestinal absorption of LASIX, and consequently to lower peak serum furosemide concentrations.
Methotrexate and other drugs that, like LASIX, undergo significant renal tubular secretion may reduce the effect of LASIX. Conversely, LASIX may decrease renal elimination of other drugs that undergo tubular secretion. High-dose treatment of both LASIX and these other drugs may result in elevated serum levels of these drugs and may potentiate their toxicity as well as the toxicity of LASIX.
LASIX can increase the risk of cephalosporin-induced nephrotoxicity even in the setting of minor or transient renal impairment.
Concomitant use of cyclosporine and LASIX is associated with increased risk of gouty arthritis secondary to LASIX-induced hyperurecemia and cyclosporine impairment of renal urate excretion.
One study in six subjects demonstrated that the combination of furosemide and acetylsalicylic acid temporarily reduced creatinine clearance in patients with chronic renal insufficiency. There are case reports of patients who developed increased BUN, serum creatinine and serum potassium levels, and weight gain when furosemide was used in conjunction with NSAIDs.
Literature reports indicate that coadministration of indomethacin may reduce the natriuretic and antihypertensive effects of LASIX (furosemide) in some patients by inhibiting prostaglandin synthesis. Indomethacin may also affect plasma renin levels, aldosterone excretion, and renin profile evaluation. Patients receiving both indomethacin and LASIX should be observed closely to determine if the desired diuretic and/or antihypertensive effect of LASIX is achieved.
Carcinogenesis, Mutagenesis, Impairment of Fertility
Furosemide was tested for carcinogenicity by oral administration in one strain of mice and one strain of rats. A small but significantly increased incidence of mammary gland carcinomas occurred in female mice at a dose 17.5 times the maximum human dose of 600 mg. There were marginal increases in uncommon tumors in male rats at a dose of 15 mg/kg (slightly greater than the maximum human dose) but not at 30 mg/kg.
Furosemide was devoid of mutagenic activity in various strains of Salmonella typhimurium when tested in the presence or absence of an in vitro metabolic activation system, and questionably positive for gene mutation in mouse lymphoma cells in the presence of rat liver S9 at the highest dose tested. Furosemide did not induce sister chromatid exchange in human cells in vitro, but other studies on chromosomal aberrations in human cells in vitro gave conflicting results. In Chinese hamster cells it induced chromosomal damage but was questionably positive for sister chromatid exchange. Studies on the induction by furosemide of chromosomal aberrations in mice were inconclusive. The urine of rats treated with this drug did not induce gene conversion in Saccharomyces cerevisiae.
LASIX (furosemide) produced no impairment of fertility in male or female rats, at 100 mg/kg/day (the maximum effective diuretic dose in the rat and 8 times the maximal human dose of 600 mg/day).
Pregnancy
PREGNANCY CATEGORY C - Furosemide has been shown to cause unexplained maternal deaths and abortions in rabbits at 2, 4 and 8 times the maximal recommended human dose. There are no adequate and well-controlled studies in pregnant women. LASIX should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus.
Treatment during pregnancy requires monitoring of fetal growth because of the potential for higher birth weights.
The effects of furosemide on embryonic and fetal development and on pregnant dams were studied in mice, rats and rabbits.
Furosemide caused unexplained maternal deaths and abortions in the rabbit at the lowest dose of 25 mg/kg (2 times the maximal recommended human dose of 600 mg/day). In another study, a dose of 50 mg/kg (4 times the maximal recommended human dose of 600 mg/day) also caused maternal deaths and abortions when administered to rabbits between Days 12 and 17 of gestation. In a third study, none of the pregnant rabbits survived a dose of 100 mg/kg. Data from the above studies indicate fetal lethality that can precede maternal deaths.
The results of the mouse study and one of the three rabbit studies also showed an increased incidence and severity of hydronephrosis (distention of the renal pelvis and, in some cases, of the ureters) in fetuses derived from the treated dams as compared with the incidence in fetuses from the control group.
Nursing Mothers
Because it appears in breast milk, caution should be exercised when LASIX is administered to a nursing mother.
LASIX may inhibit lactation.
Pediatric Use
In premature infants LASIX may precipitate nephrocalcinosis/nephrolithiasis.
Nephrocalcinosis/nephrolithiasis has also been observed in children under 4 years of age with no history of prematurity who have been treated chronically with LASIX. Monitor renal function, and renal ultrasonography should be considered, in pediatric patients receiving LASIX.
If LASIX is administered to premature infants during the first weeks of life, it may increase the risk of persistence of patent ductus arteriosus
Geriatric Use
Controlled clinical studies of LASIX did not include sufficient numbers of subjects aged 65 and over to determine whether they respond differently from younger subjects. Other reported clinical experience has not identified differences in responses between the elderly and younger patients. In general, dose selection for the elderly patient should be cautious, usually starting at the low end of the dosing range, reflecting the greater frequency of decreased hepatic, renal or cardiac function, and of concomitant disease or other drug therapy.
This drug is known to be substantially excreted by the kidney, and the risk of toxic reactions to this drug may be greater in patients with impaired renal function. Because elderly patients are more likely to have decreased renal function, care should be taken in dose selection and it may be useful to monitor renal function. (See PRECAUTIONS: General and DOSAGE AND ADMINISTRATION.)
ADVERSE REACTIONS
Adverse reactions are categorized below by organ system and listed by decreasing severity.
Gastrointestinal System Reactions
1.hepatic encephalopathy in patients with hepatocellular insufficiency
2.pancreatitis
3.jaundice (intrahepatic cholestatic jaundice)
4.increased liver enzymes
5.anorexia
6.oral and gastric irritation
7.cramping
8.diarrhea
9.constipation
10.nausea
11.vomiting
Systemic Hypersensitivity Reactions
1.Severe anaphylactic or anaphylactoid reactions (e.g. with shock)
2.systemic vasculitis
3.interstitial nephritis
4.necrotizing angiitis
Central Nervous System Reactions
1.tinnitus and hearing loss
2.paresthesias
3.vertigo
4.dizziness
5.headache
6.blurred vision
7.xanthopsia
Hematologic Reactions
1.aplastic anemia
2.thrombocytopenia
3.agranulocytosis
4.hemolytic anemia
5.leukopenia
6.anemia
7.eosinophilia
Dermatologic-Hypersensitivity Reactions
1.toxic epidermal necrolysis
2.Stevens-Johnson Syndrome
3.erythema multiforme
4.drug rash with eosinophilia and systemic symptoms
5.acute generalized exanthematous pustulosis
6.exfoliative dermatitis
7.bullous pemphigoid
8.purpura
9.photosensitivity
10.rash
11.pruritis
12.urticaria
Cardiovascular Reaction
1.Orthostatic hypotension may occur and be aggravated by alcohol, barbiturates or narcotics.
2.Increase in cholesterol and triglyceride serum levels
Other Reactions
1.hyperglycemia
2.glycosuria
3.hyperuricemia
4.muscle spasm
5.weakness
6.restlessness
7.urinary bladder spasm
8.thrombophlebitis
9.fever
Whenever adverse reactions are moderate or severe, LASIX dosage should be reduced or therapy withdrawn.
OVERDOSAGE
The principal signs and symptoms of overdose with LASIX are dehydration, blood volume reduction, hypotension, electrolyte imbalance, hypokalemia and hypochloremic alkalosis, and are extensions of its diuretic action.
The acute toxicity of LASIX has been determined in mice, rats and dogs. In all three, the oral LD50 exceeded 1000 mg/kg body weight, while the intravenous LD50 ranged from 300 to 680 mg/kg. The acute intragastric toxicity in neonatal rats is 7 to 10 times that of adult rats.
The concentration of LASIX in biological fluids associated with toxicity or death is not known.
Treatment of overdosage is supportive and consists of replacement of excessive fluid and electrolyte losses. Serum electrolytes, carbon dioxide level and blood pressure should be determined frequently. Adequate drainage must be assured in patients with urinary bladder outlet obstruction (such as prostatic hypertrophy).
Hemodialysis does not accelerate furosemide elimination.
DOSAGE AND ADMINISTRATION
Edema
Therapy should be individualized according to patient response to gain maximal therapeutic response and to determine the minimal dose needed to maintain that response.
Adults
The usual initial dose of LASIX is 20 to 80 mg given as a single dose. Ordinarily a prompt diuresis ensues. If needed, the same dose can be administered 6 to 8 hours later or the dose may be increased. The dose may be raised by 20 or 40 mg and given not sooner than 6 to 8 hours after the previous dose until the desired diuretic effect has been obtained. The individually determined single dose should then be given once or twice daily (eg, at 8 am and 2 pm). The dose of LASIX may be carefully titrated up to 600 mg/day in patients with clinically severe edematous states.
Edema may be most efficiently and safely mobilized by giving LASIX on 2 to 4 consecutive days each week.
When doses exceeding 80 mg/day are given for prolonged periods, careful clinical observation and laboratory monitoring are particularly advisable. (See PRECAUTIONS: Laboratory Tests.)
Geriatric patients
In general, dose selection for the elderly patient should be cautious, usually starting at the low end of the dosing range (see PRECAUTIONS: Geriatric Use).
Pediatric patients
The usual initial dose of oral LASIX in pediatric patients is 2 mg/kg body weight, given as a single dose. If the diuretic response is not satisfactory after the initial dose, dosage may be increased by 1 or 2 mg/kg no sooner than 6 to 8 hours after the previous dose. Doses greater than 6 mg/kg body weight are not recommended. For maintenance therapy in pediatric patients, the dose should be adjusted to the minimum effective level.
Hypertension
Therapy should be individualized according to the patient's response to gain maximal therapeutic response and to determine the minimal dose needed to maintain the therapeutic response.
Adults
The usual initial dose of LASIX for hypertension is 80 mg, usually divided into 40 mg twice a day. Dosage should then be adjusted according to response. If response is not satisfactory, add other antihypertensive agents.
Changes in blood pressure must be carefully monitored when LASIX is used with other antihypertensive drugs, especially during initial therapy. To prevent excessive drop in blood pressure, the dosage of other agents should be reduced by at least 50 percent when LASIX is added to the regimen. As the blood pressure falls under the potentiating effect of LASIX, a further reduction in dosage or even discontinuation of other antihypertensive drugs may be necessary.
Geriatric patients
In general, dose selection and dose adjustment for the elderly patient should be cautious, usually starting at the low end of the dosing range (see PRECAUTIONS: Geriatric Use).
HOW SUPPLIED
LASIX (furosemide) Tablets 20 mg are supplied as white, oval, monogrammed tablets in Bottles of 100 (NDC 0039-0067-10), and 1000 (NDC 0039-0067-70). The 20 mg tablets are imprinted with "Lasix®" on one side.
LASIX Tablets 40 mg are supplied as white, round, monogrammed, scored tablets in Bottles of 100 (NDC 0039-0060-13), 500 (NDC 0039-0060-50), and 1000 (NDC 0039-0060-70). The 40 mg tablets are imprinted with "Lasix® 40" on one side.
LASIX Tablets 80 mg are supplied as white, round, monogrammed, facetted edge tablets in Bottles of 50 (NDC 0039-0066-05) and 500 (NDC 0039-0066-50). The 80 mg tablets are imprinted with "Lasix® 80" on one side.
Note: Dispense in well-closed, light-resistant containers. Exposure to light might cause a slight discoloration. Discolored tablets should not be dispensed.
Tested by USP Dissolution Test 2
Store at 25° C (77° F); excursions permitted to 15 – 30° C (59 – 86° F). [See USP Controlled Room Temperature.]
附件:

201361823161614.pdf 

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注：以下产品不同规格和不同价格，购买时以咨询为准！
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产地国家: 德国
原产地英文商品名:
LASIX 40MG TABLE
原产地英文药品名:
FUROSEMIDE
中文参考商品译名:
呋塞米片 40毫克 100片
中文参考药品译名:
呋塞米
生产厂家中文参考译名:
赛诺菲
生产厂家英文名:
SANOFI AVENTIS US
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产地国家: 加拿大
原产地英文商品名:
LASIX 40MG TABLE
原产地英文药品名:
FUROSEMIDE
中文参考商品译名:
呋塞米片 40毫克 90片
中文参考药品译名:
呋塞米
生产厂家中文参考译名:
赛诺菲
生产厂家英文名:
SANOFI AVENTIS US
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产地国家:美国
原产地英文商品名:
LASIX 80MG TABLE
原产地英文药品名:
FUROSEMIDE
中文参考商品译名:
呋塞米片 80毫克 100片
中文参考药品译名:
呋塞米
生产厂家中文参考译名:
赛诺菲
生产厂家英文名:
SANOFI AVENTIS US
--------------------------------------------------------------
产地国家:美国
原产地英文商品名:
LASIX 40MG TABLE
原产地英文药品名:
FUROSEMIDE
中文参考商品译名:
呋塞米片 40毫克 100片
中文参考药品译名:
呋塞米
生产厂家中文参考译名:
赛诺菲
生产厂家英文名:
SANOFI AVENTIS US