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Acyclovir (Generic Zovirax)
Acyclovir is an antiviral drug used primarily in the treatment of herpes (including herpes simplex (HSV) and genital herpes). It has also been known to effectively treat shingles and chickenpox. While it won’t and can’t cure herpes, it has the potential to reduce the frequency and severity of herpes outbreaks.
This is an antiviral medication that falls into the class of synthetic nucleoside analogs. It’s used to treat infections that are caused by specific types of viruses.
If you are someone who experiences frequent episodes then Acyclovir can also be used to help reduce the number of episodes in the future. While it can significantly reduce the length and severity of outbreaks, it is not a cure for herpes. It effectively decreases pain and itching and helps sores heal faster and reduces the likelihood of an outbreak.
It can also help prevent and decrease the chances of the virus spreading to other parts of the body and having more serious infections.
What is Acyclovir Prescribed For?
Acyclovir is prescribed to treat the symptoms of chickenpox, shingles, and herpes. It not only treats the symptoms but is prescribed to also prevent ongoing genital herpes infections.
In addition, it treats cold sores that form around the mouth (caused by herpes simplex). It is used to decrease pain and increase the healing speed of sores.
If you’re infected with the herpes virus then this medication can work to prevent outbreaks of genital herpes in some cases. This medication might also be prescribed for other reasons and uses including to treat eczema herpeticum.
Depending on your outbreaks and how often they occur, adults and children 12 years of age and older may be directed to take 200 to 400 mg two to five times a day for five days or up to twelve months.
How Does Acyclovir Work?
What Acyclovir does is it lowers the ability of the herpes virus to multiply in your body. Its antiviral drug will treat the symptoms of your infection but keep in mind that it’s not a cure.
It’s classified as a chain terminator and functions to inhibit DNA polymerase. The intended purpose of it is to stop the spread of the herpes virus.
You may not notice a reduction in your symptoms for up to three days. The herpes virus can still live in your body even while taking Acyclovir so it’s always possible you may see symptoms pop up later after taking it.
What Are The Side Effects of Acyclovir?
While the Acyclovir tablet won’t cause you to feel drowsy, it does have some other side effects to be aware of. These side effects may or may not include:
- Weakness
- Headache
- Vomiting
- Abdominal pain
- Diarrhea
- Nausea.
Other more serious side effects can include:
- Difficulty breathing
- Fever and chills
- Dark urine
- Yellowing of the skin and eyes
- Skin rash
- Skin pain
- Itching of the genital area
- Mood changes
- Trouble speaking
- Swelling of the face, lips, tongue, or throat
If you experience any of these symptoms, contact your doctor right away.
Certain medications can interact with Acyclovir, potentially increasing the risk of side effects. It’s important to inform your doctor of all medications and supplements you’re taking.
Frequently Asked Questions About Acyclovir
Can You Get Acyclovir Over-The-Counter (OTC)?
No. You can’t get Acyclovir or buy Acyclovir over the counter. Instead, you’ll need to make an appointment with a licensed medical professional or doctor who can prescribe the medication.
Can You Get an Acyclovir Prescription Online?
Yes, you can get a prescription for Acyclovir online.
With DrHouse, you can connect with a board-certified doctor to get a personalized diagnosis and treatment plan that may include a prescription for Acyclovir.
Your doctor will review your medical history and symptoms in order to determine if an online prescription is appropriate.
How to Take Acyclovir?
Always take this antiviral drug as directed by your doctor.
Acyclovir is available in several forms:
- Tablets or capsules: These are taken orally, with or without food. If stomach upset occurs, it might be helpful to take them with food.
- Suspension (liquid): If prescribed this form, shake the bottle well before each dose. Ensure you measure the dose accurately using a measuring spoon or cup.
- Topical: Acyclovir also comes as a cream or ointment for application on the skin.
You’ll likely be asked to drink plenty of fluids while taking this prescription which can prevent dry mouth.
What to Avoid While Taking Acyclovir?
When taking Acyclovir, you should avoid the following:
- Avoid dehydration as drinking plenty of fluids is important while taking Acyclovir. Dehydration can increase the risk of kidney side effects.
- If you are prescribed a specific formulation of Acyclovir that is meant to dissolve in your mouth, you should avoid brushing your teeth, chewing gum, or wearing an upper denture.
- Avoid excessive alcohol consumption while taking Acyclovir as it will put extra strain on your kidneys and it may exacerbate the side effects of acyclovir.
- If you are pregnant or breastfeeding, you should inform your doctor before taking Acyclovir.
- Acyclovir can also interact with certain medications, so make sure to inform your doctor of all medications and supplements you’re taking.
These are just some of the things to keep in mind when taking Acyclovir. To find out more, you should consult your doctor or pharmacist for further instructions and advice.
For more detailed information about Acyclovir, you can refer to the following sources:
- Zovirax prescription label, Food and Drug Administration (FDA).
- Acyclovir, Drugs.com.
- Acyclovir, MedlinePlus.
- Acyclovir, U.S. National Library of Medicine.
The content on this page has been medically reviewed for accuracy and comprehensiveness by Amy Dougherty, FNP-BC, AGAC
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