藥碼
RIT02
藥名
Methylphenidate 錠劑 管三 10 mg
英文商品名
Ritalin 錠劑 管三 10 mg
中文商品名
利他能錠
螢幕名
【Q4】Ritalin 錠劑 管三 10 mg
劑型
Tab
規格
Tab 10mg
成分
藥理分類
Misc. Anorexigenic Drugs, Resp./Cerebral Stimulants
健保碼
BC27080100
ATC碼
藥品圖片
外觀圖片
適應症
Attention deficit disorders, narcolepsy, mild depression apathetic or withdrawn senile behavior.
藥理
Methylphenidate is a piperidine-derivative CNS stimulant that has pharmacologic actions that are qualitatively similar to those of amphetamines.
藥動學
Methylphenidate hydrochloride appears to be well absorbed from the GI tract; however, oral bioavailability of the drug is low (about 30%; range: 10–52%), which suggests substantial first-pass metabolism. It is about 10–33% bound to plasma proteins. Methylphenidate is metabolized primarily by de-esterification by carboxylesterase 1A1 to form α-phenylpiperidine acetic acid (ritalinic acid), which has little or no pharmacologic activity. Approximately 50, 80, and 95% of the dose was recovered as metabolites in urine within 6, 24, and 90 hours, respectively. The mean terminal elimination half-life was reported to be 3.5 or 2.5 hours, respectively.
禁忌症
Marked anxiety, tension, agitation and glucoma.
懷孕分類
C
Although a causal relationship has not been established, obtaining a fetal echocardiogram between 18- and 22-weeks' gestation to evaluate cardiac malformations has been suggested.
Available data have not demonstrated a consistent association between methylphenidate use during pregnancy and an increased risk of neurodevelopmental disorders. Placental perfusion may be decreased due to vasoconstriction caused by CNS stimulants. Use of amphetamines during pregnancy may lead to an increased risk of premature birth and low birth weight.
哺乳分類
Adverse effects on the breast-fed infant or on milk production have not been reported to date; however, any long-term neurodevelopmental effects are unknown.
副作用
Common: nervousness, insomnia; prolonged therapy: anorexia, weight loss, cardiac arrhythmia.
劑量和給藥方法
Adults : The average daily dose is 20-30 mg, divided into 2-3 doses. Some patients may need 40-60 mg daily, while others only need 10-15 mg daily. If taking the medication late causes insomnia, the last dose should be taken before 6 PM.
小兒調整劑量
Children (6 years and older ) :
The starting dose is 5 mg once or twice a day ( e.g., with breakfast or lunch ) , increasing by 5-10 mg each week . The daily dose should be divided into several administrations.
腎功能調整劑量
No dosage adjustment necessary for any degree of kidney impairment.
肝功能調整劑量
No dosage adjustment necessary.
安定性
Avoid moisture and store below 30°C .
藥袋資訊
臨床用途
過動兒症候群、發作性嗜睡症
主要副作用
食慾差、神經質、失眠等
泡製方法
儲存方式
請置於 15-30℃ 乾燥處儲存
注意事項
其他說明
藥局 門診Q4、急首g2 | 藥庫 管B
藥品外觀
顏色
13
形狀
01
剝痕
Y
標記1
AB
標記2
CG
其他
健保藥價
2.66
自費價
3.54
仿單
資料庫
健保給付規定