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 部分中文GUANABENZ ACETATE处方资料（仅供参考）
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【中文品名】醋酸胍那苄

【药效类别】抗高血压药

【通用药名】GUANABENZ ACETATE

【别　　名】FLA-137, Guaxan, Hipten, Prestel, Rexiten, Rexitene, Tenelid, Wy-8678, Wytens, Wytensin

【化学名称】(E)-(2,6-Dichlorobenzylideneamino)guanidine monoacetate

【CA登记号】[23256-50-0]

【分 子 式】C8H8Cl2N4﹒C2H4O2

【分 子 量】291.13

【收录药典】JP14

【用　　途】醋酸胍那苄是一种中枢作用的α2-激动剂类的抗高血压药物。

Guanabenz acetate
What is Guanabenz acetate?
Guanabenz is used alone or with thiazide type diuretics to treat high blood pressure.

What is the most important information I should know about Guanabenz acetate?
You must take guanabenz regularly for it to be effective. Since blood pressure declines gradually, it may be several weeks before you get the full benefit of the drug. You must continue taking it even if you are feeling well. Guanabenz does not cure high blood pressure; it only keeps it under control.

Do not discontinue therapy with guanabenz abruptly. It may cause rebound hypertension (a sudden sharp increase in blood pressure). This is very dangerous and is a medical emergency.

Who should not take Guanabenz acetate?
Do not take guanabenz if you are sensitive to it or have ever had an allergic reaction to it.

What should I tell my doctor before I take the first dose of Guanabenz acetate?
Tell your doctor about all prescription, over-the-counter, and herbal medications you are taking before beginning treatment with guanabenz. Also, talk to your doctor about your complete medical history, especially if you have severe heart disease, have had a stroke, severe kidney or liver failure, or if you have recently had a heart attack.

What is the usual dosage?
The information below is based on the dosage guidelines your doctor uses. Depending on your condition and medical history, your doctor may prescribe a different regimen. Do not change the dosage or stop taking your medication without your doctor's approval.

Adults: The usual starting dose is 4 milligrams (mg) taken 2 times per day. Your doctor may increase the dosage by 4 to 8 mg per day every 1 to 2 weeks, depending on your blood pressure response.

The maximum dose studied to date has been 32 mg twice daily, but high doses like this are rarely needed.

The safety and effectiveness of guanabenz has not been established in children less than 12 years of age.

How should I take Guanabenz acetate?
Take guanabenz exactly as prescribed. Do not stop taking it abruptly. You can take it with or without food.

What should I avoid while taking Guanabenz acetate?
Guanabenz may cause dizziness or drowsiness. Use caution when driving, operating machinery, or performing other hazardous activities.

Avoid quickly rising from sitting or lying down positions, especially first thing in the morning because of possible dizziness.

Avoid alcohol, which may increase the dizziness or drowsiness caused by guanabenz. Avoid using other drugs that can cause drowsiness, including antidepressants, antihistamines, anxiety medicines, muscle relaxants, pain relievers, and seizure medicines.

What are possible food and drug interactions associated with Guanabenz acetate?
If guanabenz is taken with certain other drugs, the effects of either could be increased, decreased, or altered. It is especially important to check with your doctor before combining guanabenz with the following: Alcohol, antidepressants (including MAO inhibitors such as phenelzine and tranylcypromine; serotonin reuptake inhibitors such as fluoxetine, paroxetine; and tricyclics such as amitriptyline, imipramine), anti-infective agents, antihistamines (such as clemastine, chlorpheniramine, and diphenhydramine), antiseizure drugs (such as phenobarbital, phenytoin, primidone), digitalis, diuretics, muscle relaxants, pain relievers such as hydrocodone/acetaminophen, sedatives and tranquilizers (such as alprazolam, diazepam, triazolam), phenothiazines

What are the possible side effects of Guanabenz acetate?
Side effects cannot be anticipated. If any develop or change in intensity, tell your doctor as soon as possible. Only your doctor can determine if it is safe for you to continue taking this drug.

Side effects may include: dizziness, drowsiness, dry mouth, headache, weakness

Can I receive Guanabenz acetate if I am pregnant or breastfeeding?
The effects of guanabenz during pregnancy and breastfeeding are unknown. Tell your doctor immediately if you are pregnant, plan to become pregnant, or are breastfeeding.

What should I do if I miss a dose of Guanabenz acetate?
Take it as soon you remember. If it is almost time for your next dose, skip the missed dose and go back to your regular schedule. Do not take 2 doses at the same time. If you forget to take your medication 2 or more times in a row, contact your doctor.

How should I store Guanabenz acetate?
Store at room temperature, in a tightly closed container, and away from light.

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2010-10-18更新