Aciclovir for viral infections
Zovirax
مراجعة من قبل Sid Dajaniآخر تحديث بواسطة Michael Stewart, MRPharmSLast updated 9 Jan 2023
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You can take aciclovir either with or without food.
قم بتوزيع جرعاتك بالتساوي على مدار اليوم، وأكمل الدورة الكاملة للعلاج.
Drink plenty of water. It is important that you don't become lacking in fluid in the body (dehydrated).
At a glance
Aciclovir is an antiviral medicine used to treat and prevent viral infections.
It treats infections caused by varicella-zoster and herpes simplex viruses.
Your doctor will tell you the correct dose; take it exactly as prescribed.
Drink plenty of fluids while taking aciclovir to keep your kidneys working well.
Avoid strong sunlight and sunbeds as aciclovir can make your skin sensitive.
Common side-effects include feeling sick, headache, and diarrhoea.
Always check with your doctor or pharmacist if you are taking other medicines.
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تابع القراءة أدناه
About aciclovir
نوع الدواء | دواء مضاد للفيروسات |
يستخدم لـ | Viral infections in adults and children |
يُعرف أيضًا باسم | Acyclovir (in US); Zovirax® |
متوفر كـ | Tablets, dispersible tablets and oral liquid medicine |
Aciclovir is used to treat two common viral infections - varicella-zoster and herpes simplex. The varicella-zoster virus is the cause of جدري الماء و القوباء المنطقية. Herpes simplex viruses cause cold sores و الهربس التناسلي. Aciclovir works by preventing viruses from multiplying, and this reduces the severity of the infection and stops it from spreading. As well as treating infections, aciclovir can also be prescribed to prevent some viral infections from occurring. This is particularly the case in people who have a lowered immune system.
Although some herpes infections (for example, cold sores) can be treated with creams or ointments, more severe infections need to be treated with tablets or medicine taken by mouth. This leaflet provides information on how to take aciclovir tablets and medicine. Information about the topical forms of aciclovir (creams and ointments) is not included in this leaflet. See the separate medicine leaflets called Aciclovir cream و Aciclovir eye ointment for more information about how to use these preparations.
Before taking aciclovir
العودة إلى المحتوياتSome medicines are not suitable for people with certain conditions, and sometimes a medicine can only be used if extra care is taken. For these reasons, before you start taking aciclovir it is important that the person prescribing it for you knows:
If you are pregnant or breastfeeding (although aciclovir is not known to be harmful to a baby).
إذا كان لديك أي مشاكل في طريقة عمل الكلى لديك.
إذا كنت تتناول أو تستخدم أي أدوية أخرى. يشمل ذلك أي أدوية تتناولها والتي يمكن شراؤها بدون وصفة طبية، بالإضافة إلى الأدوية العشبية والمكملات الغذائية.
إذا كنت قد تعرضت في أي وقت مضى لرد فعل تحسسي تجاه دواء.
تابع القراءة أدناه
How to take aciclovir
العودة إلى المحتوياتBefore you start the treatment, read the manufacturer's printed information leaflet from inside the pack. It will give you more information about aciclovir, and it will also provide you with a full list of the side-effects which you could experience from taking it.
Your dose will depend upon the type of infection you have, so take aciclovir exactly as your doctor tells you to. Typically, doses range from 200 mg to 800 mg, and these doses are taken either three, four or five times daily. Your doctor or pharmacist will tell you what dose is right for you, and this information will also be printed on the label of the pack to remind you about what was said to you.
Space out your doses evenly during the day. You can take aciclovir either with or without food.
Even if you feel your infection has cleared up, keep taking aciclovir until the course is finished (unless your doctor tells you to stop sooner). This is to prevent the infection from coming back. The course of treatment prescribed could last between 2-10 days. If you still feel unwell after finishing the course, go back to see your doctor.
If you have been prescribed a dispersible tablet - these can be stirred into a small glassful (50 ml) of water to make them easier to swallow. You can, however, swallow them as normal if you prefer.
إذا نسيت تناول جرعة، فتناولها بمجرد أن تتذكر ثم استمر كما كنت من قبل. حاول تناول العدد الصحيح من الجرعات كل يوم، ولكن لا تتناول جرعتين في نفس الوقت لتعويض الجرعة الفائتة.
تحقيق أقصى استفادة من علاجك
العودة إلى المحتوياتYou should drink plenty while you are on aciclovir to keep your kidneys working well. Drinking water is best, but hot drinks and non-alcoholic cold drinks are also suitable.
Aciclovir could cause your skin to become more sensitive to sunlight than it is usually. Avoid strong sunlight and sunbeds, and use a sun cream with a high sun protection factor until you know how your skin reacts.
If you have been prescribed aciclovir for genital herpes, do not have sex while you have sores or blisters. Even after these have healed, there is still a small chance that you may pass on the virus when you have sex - using a condom reduces this risk.
If you are having an operation or any other medical treatment, tell the person carrying out the treatment that you are taking aciclovir.
تابع القراءة أدناه
Can aciclovir cause problems?
العودة إلى المحتوياتAlong with their useful effects, most medicines can cause unwanted side-effects although not everyone experiences them. The table below contains some of the more common ones associated with aciclovir. The best place to find a full list of the side-effects which can be associated with your medicine, is from the manufacturer's printed information leaflet supplied with the medicine. Alternatively, you can find an example of a manufacturer's information leaflet in the reference section below. Speak with your doctor or pharmacist if any of the following continue or become troublesome.
Common aciclovir side-effects (these affect fewer than 1 in 10 people) | ماذا يمكنني أن أفعل إذا واجهت هذا؟ |
Feeling sick (nausea) or being sick (vomiting), stomach ache | التزم بالأطعمة البسيطة - تجنب الوجبات الدهنية أو الحارة |
Itchy rash, feeling hot | If either is troublesome, speak with your doctor |
صداع | اشرب الكثير من الماء واطلب من الصيدلي أن يوصي بمسكن مناسب للألم. إذا استمرت الصداع، تحدث مع طبيبك |
إسهال | اشرب الكثير من الماء لتعويض السوائل المفقودة |
الشعور بالدوار أو التعب | لا تقم بالقيادة ولا تستخدم الأدوات أو الآلات أثناء التأثر |
إذا شعرت بأي أعراض أخرى تعتقد أنها قد تكون بسبب الدواء، تحدث مع طبيبك أو الصيدلي للحصول على مزيد من النصائح.
How to store aciclovir
العودة إلى المحتوياتاحفظ جميع الأدوية بعيدًا عن متناول ورؤية الأطفال.
احفظه في مكان بارد وجاف، بعيدًا عن الحرارة المباشرة والضوء.
معلومات هامة عن جميع الأدوية
العودة إلى المحتوياتمعلومات هامة عن جميع الأدوية
لا تأخذ أبدًا أكثر من الجرعة الموصوفة. إذا كنت تشك في أنك أو شخص آخر قد تناول جرعة زائدة من هذا الدواء، اذهب إلى قسم الحوادث والطوارئ في مستشفى منطقتك. خذ العبوة معك، حتى لو كانت فارغة.
هذا الدواء لك. لا تعطه لأشخاص آخرين حتى لو بدت حالتهم مشابهة لحالتك.
إذا اشتريت أي أدوية، تحقق مع الصيدلي من أنها مناسبة لتناولها مع الأدوية الأخرى التي تتناولها.
لا تحتفظ بالأدوية منتهية الصلاحية أو غير المرغوب فيها. خذها إلى صيدليتك المحلية التي ستتولى التخلص منها نيابة عنك.
إذا كان لديك أي أسئلة حول هذا الدواء، اسأل الصيدلي الخاص بك.
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غير متأكد من خلط الأدوية؟
تحقق من التفاعلات المحتملة بين الأدوية والمكملات الغذائية والأطعمة قبل تناولها معًا.
الأسئلة الشائعة
What types of infections does aciclovir treat?
Aciclovir is used to treat infections caused by the varicella-zoster virus, which causes chickenpox and shingles. It also treats infections from herpes simplex viruses, responsible for cold sores and genital herpes.
Can aciclovir prevent me from getting an infection?
Yes, alongside treating existing infections, aciclovir can also be prescribed to prevent certain viral infections from occurring. This is particularly common for individuals who have a weakened immune system.
Is it safe to take aciclovir if I am pregnant or breastfeeding?
If you are pregnant or breastfeeding, you should inform your doctor. While aciclovir is not known to be harmful to a baby, it's important for your prescriber to have this information.
What should I do if I forget to take a dose?
If you forget a dose, take it as soon as you remember. Then, continue with your treatment as normal. You should try to take the correct number of doses each day, but avoid taking two doses at the same time to compensate for a missed one.
How long will I need to take aciclovir for?
The duration of your treatment will depend on the type of infection you have, but a course typically lasts between 2 to 10 days. It's important to continue taking aciclovir until the full course is finished, even if you feel better, unless your doctor advises you to stop sooner. This helps prevent the infection from returning.
Why is it important to drink plenty of fluids while taking aciclovir?
Drinking plenty of fluids, such as water, hot drinks, or non-alcoholic cold drinks, is important when taking aciclovir. This helps to keep your kidneys functioning well.
Can aciclovir affect my skin's sensitivity to the sun?
Yes, aciclovir could make your skin more sensitive to sunlight than usual. You should avoid strong sunlight and sunbeds, and use a high sun protection factor (SPF) sun cream until you understand how your skin reacts to the medicine.
What should I do if I experience side-effects from aciclovir?
Most medicines can cause side-effects, but not everyone experiences them. If you experience any side-effects that continue or become troublesome, you should speak with your doctor or pharmacist. For example, if you have headaches, drink plenty of water and ask your pharmacist for a suitable painkiller. If you feel dizzy or tired, do not drive or use tools/machines.
قراءة إضافية ومراجع
- Manufacturer's PIL, Zovirax® Tablets 800 mg; GlaxoSmithKline UK, The electronic Medicines Compendium. Dated May 2020.
- Manufacturer's PIL, Zovirax® Tablets 200 mg; GlaxoSmithKline UK, The electronic Medicines Compendium. Dated May 2020.
- الأدوية كاملة BNF الطبعة 89; الجمعية الطبية البريطانية والجمعية الملكية الصيدلانية لبريطانيا العظمى، لندن.
تابع القراءة أدناه
About the authorView full bio

مايكل ستيوارت، MRPharmS
Medicine Leaflet Review Manager – Contractor, Pharmacist
BPharm (Hons), MRPharmS
Michael is a community pharmacist practicing in the Midlands and South Yorkshire with more than 20 years’ experience advising on medicines and medical conditions. He has a strong background in healthcare training, having produced and delivered training courses for pharmacy teams and staff of residential care settings, including nurses. He has also contributed to pharmacy advisory boards for the management of low acuity conditions in the community.
About the reviewer

سيد داجاني
Sultan Dajani qualified at the London School of Pharmacy in 1994 and became the youngest elected member of the Royal Pharmaceutical Society council since its founding in 1842.
تاريخ المقال
تمت كتابة المعلومات على هذه الصفحة ومراجعتها من قبل أطباء مؤهلين.
المراجعة التالية مستحقة: 8 يوليو 2027
9 Jan 2023 | أحدث إصدار

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