
Acyclovir is an antiviral medicine used to treat viral infections caused by herpes viruses, including herpes zoster (shingles), genital herpes, and varicella (chickenpox). It is available in multiple dosage forms, such as tablets, capsules, liquids, buccal tablets, topical creams, and intravenous drugs. While acyclovir is a commonly prescribed medication, it is important to be aware of potential side effects and interactions with other substances. This includes possible interactions with sleep aid medications, such as Compoz Nighttime Sleep Aid, which may increase the risk of drowsiness and dizziness. Therefore, it is crucial to consult a healthcare professional before taking acyclovir in conjunction with any sleep aid medicine to ensure safe and effective use.
| Characteristics | Values |
|---|---|
| Forms | tablet, capsule, liquid, buccal tablet, topical cream, topical ointment, intravenous drug |
| Dosage | 200 mg, 800 mg, 10 mg/kg |
| Frequency | two to five times a day, four times a day, five times a day, ten times a day |
| Duration | 5 days, 10 days, 12 months |
| Side effects | nausea, vomiting, diarrhoea, headache, kidney damage, dizziness, drowsiness, confusion, agitation, anaphylaxis |
| Interactions | probenecid, vaccines, alcohol, supplements, other medicines |
| Precautions | drink plenty of fluids, avoid dehydration, do not take other medicines without consulting a doctor, do not drive or operate machinery if dizzy |
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What You'll Learn
- Acyclovir's side effects include nausea, vomiting, diarrhoea, and headache
- Acyclovir may interact with other medicines, supplements, and vaccines
- Acyclovir is used to treat viral infections such as herpes zoster (shingles) and genital herpes
- Acyclovir is available in multiple dosage forms, including capsules, liquids, tablets, and intravenous drugs
- Acyclovir may cause drowsiness and dizziness, especially in elderly patients

Acyclovir's side effects include nausea, vomiting, diarrhoea, and headache
Acyclovir is an antiviral medicine used to treat conditions caused by herpes viruses. It is also used to treat eczema herpeticum, a skin infection caused by the herpes virus. Acyclovir is available in multiple dosage forms, including a capsule, liquid, or tablet. It is typically taken orally, but can also be applied topically in the form of a cream, ointment, or buccal tablet.
While acyclovir is generally well-tolerated, it can cause side effects in some individuals. The most commonly reported side effects of acyclovir include nausea, vomiting, diarrhoea, and headache. These side effects are usually mild and occur in less than 10% of people. Other common side effects include dizziness, malaise, and allergic reactions such as swelling under the skin or around the face, eyes, or throat.
It is important to note that alcohol does not interfere with the effectiveness of acyclovir. However, heavy drinking can slow down the immune response and increase the risk of side effects. Therefore, it is recommended to avoid alcohol when taking acyclovir, especially if you have an infection.
In rare cases, acyclovir can cause serious side effects, including anaphylaxis, Stevens-Johnson syndrome, kidney damage, and neurological issues. Patients with kidney issues or those taking certain medications should use acyclovir cautiously to avoid exacerbating side effects. To minimise side effects, it is important to follow the prescription instructions closely, stay hydrated, and discuss any pre-existing health conditions with a healthcare provider.
If you experience any side effects while taking acyclovir, consult your doctor or pharmacist for advice. They can provide guidance on managing side effects and determining if acyclovir is suitable for your individual circumstances.
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Acyclovir may interact with other medicines, supplements, and vaccines
Acyclovir is an antiviral medicine used to treat conditions caused by herpes viruses. It is available in multiple dosage forms, including a capsule, liquid, or tablet. It is also available in injectable forms and for use on the skin. Acyclovir is not a cure for herpes viruses, as they remain in the body even without symptoms.
Additionally, certain vaccines, such as the chickenpox (varicella) vaccine, may not be advisable right before or during treatment with acyclovir. It is crucial to inform your healthcare provider about any recent or scheduled vaccines.
Pregnant or breastfeeding individuals should consult their healthcare provider before taking acyclovir. While there is no known interaction between acyclovir and food or drink, the effects of alcohol consumption while taking acyclovir are unclear. Heavy drinking can impair your immune response and make it more difficult for your body to fight infections.
Furthermore, individuals with a weak immune system taking acyclovir may be at risk of developing thrombotic thrombocytopenic purpura (TTP) and hemolytic uremic syndrome. It is important to discuss any current or past health conditions, including immune system issues, with your healthcare provider before taking acyclovir.
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Acyclovir is used to treat viral infections such as herpes zoster (shingles) and genital herpes
Acyclovir, also known as aciclovir, is an antiviral medication used to treat viral infections caused by the herpes simplex virus (HSV). It is commonly used to treat genital herpes and herpes zoster (shingles). It is available in multiple dosage forms, including tablets, capsules, liquids, and creams, as well as intravenous administration for severe cases.
Acyclovir works by inhibiting DNA synthesis and viral replication, slowing the growth of the herpes virus and improving symptoms. It is important to note that acyclovir is not a cure for herpes infections, and the virus can remain in the body even without symptoms. When used to treat genital herpes, acyclovir is typically taken two to five times a day for up to 12 months to prevent outbreaks. For shingles, acyclovir is taken for 5 to 10 days, starting as soon as symptoms appear.
Acyclovir is generally safe, but it can cause side effects such as nausea, vomiting, diarrhoea, and headaches. More serious side effects may include kidney damage and low platelets, so it is important to monitor kidney function and seek medical advice if any unusual problems occur. Drinking plenty of fluids while taking acyclovir is recommended to avoid dehydration.
It is important to follow the directions provided by a doctor or pharmacist when taking acyclovir. It should not be taken in larger or smaller amounts or for longer than prescribed. Additionally, acyclovir may interact with other medications, supplements, or vaccines, so it is crucial to inform your healthcare provider about any other substances you are taking before starting acyclovir treatment.
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Acyclovir is available in multiple dosage forms, including capsules, liquids, tablets, and intravenous drugs
Acyclovir is an antiviral medication used to treat conditions caused by herpes viruses. It is available only with a doctor's prescription and comes in multiple dosage forms, including capsules, liquids, tablets, and intravenous drugs. It is also available as a buccal tablet that is applied to the upper gum of the mouth.
The capsules, tablets, and oral suspension (liquid) can be taken with meals or on an empty stomach. It is recommended to take acyclovir with a full glass (8 ounces) of water to avoid dehydration, which can be a side effect of the medication. The liquid form should be measured accurately using a specially marked measuring spoon or device, as a household spoon may not hold the correct amount.
The intravenous (IV) form of acyclovir is administered slowly into a vein over at least an hour and is typically repeated every eight hours for five to ten days. The dose is based on body weight and must be determined by a doctor.
Acyclovir buccal tablets are applied to the upper gum, above the incisor teeth, and held in place for 30 seconds. They should not be chewed, crushed, sucked, or swallowed, and they should not be given to young children as choking may occur.
It is important to take acyclovir exactly as directed by a doctor and to complete the full course of treatment, even if symptoms improve. Skipping doses or stopping too soon can reduce the medication's effectiveness and increase the risk of viral resistance. Acyclovir may interact with other medications and supplements, so it is essential to inform your healthcare provider about any other substances you are taking.
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Acyclovir may cause drowsiness and dizziness, especially in elderly patients
Acyclovir is an antiviral medicine used to treat viral infections caused by herpes viruses. It is available in multiple dosage forms, including a capsule, liquid, tablet, buccal tablet, topical cream, and ointment. It is also available as an intravenous drug, which is only administered by a healthcare professional.
It is important to take acyclovir exactly as directed by your doctor or pharmacist. Do not take more or less of it or change your dosage without consulting a healthcare professional. Acyclovir may interact with other medications, supplements, and vitamins. Therefore, you should inform your doctor or pharmacist about all prescription, over-the-counter, and other drugs you are taking before starting acyclovir.
Although there is no known interaction between acyclovir and foods or drinks, it is unclear whether alcohol consumption can affect the drug. However, heavy drinking can slow your immune response and make it harder for your body to fight infection. Therefore, it is recommended to exercise caution and inform your healthcare provider if you consume alcohol while taking acyclovir.
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Frequently asked questions
It is not recommended to take sleep aid medicine with acyclovir. Acyclovir may interact with other medications and supplements, so it is important to consult a doctor or pharmacist before mixing medications.
Acyclovir is an antiviral medication used to treat conditions caused by herpes viruses, including genital herpes, shingles, and chickenpox. It is available in multiple dosage forms, including capsules, liquids, tablets, and intravenous drugs.
Common side effects of acyclovir include nausea, vomiting, diarrhoea, and headache. Serious side effects may include kidney damage and a serious allergic reaction (anaphylaxis). It is important to drink plenty of fluids while taking acyclovir to avoid dehydration.














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