Acyclovir

Acyclovir

Dosage
200mg 400mg 800mg
Package
90 pill 60 pill 30 pill
Total price: 0.0
  • You can purchase acyclovir from pharmacies and online medication suppliers in Canada; it is generally a prescription-only medicine, although some pharmacies may offer it without a prescription depending on local rules and the product form. It is available as generic acyclovir and under brand names such as Zovirax.
  • Acyclovir is used to treat herpes simplex infections, genital herpes, cold sores, shingles (herpes zoster), and chickenpox, and it may also be used for prevention in some immunocompromised patients. It works as an antiviral nucleoside analogue that inhibits viral DNA replication.
  • The usual oral dose depends on the condition: 200 mg five times daily for herpes simplex, 400 mg twice daily or 200 mg three to five times daily for suppression, 800 mg five times daily for shingles, and 800 mg four times daily for chickenpox. Dosing in children is typically weight-based.
  • Acyclovir is available as tablets, cream, ointment, oral suspension, intravenous vials, and ophthalmic ointment.
  • It usually starts working within a few hours after the first dose, though symptom improvement may take 1 to 3 days depending on the infection and the route of administration.
  • The duration of action varies by formulation and indication: oral doses are typically taken several times a day, topical cream is used 5 times daily for 4 to 5 days, and treatment courses commonly last 5 to 10 days; suppressive therapy may continue for months.
  • Alcohol is not strictly contraindicated, but it is best to avoid or limit alcohol because it can worsen dehydration and increase the risk of side effects, especially if you are unwell or have kidney problems.
  • The most common side effects are nausea, vomiting, diarrhea, abdominal pain, headache, dizziness, and local skin irritation with the cream.
  • Would you like to try acyclovir without a prescription?
Trackable delivery 5-9 days
Payment method Visa, MasterCard, Discovery, Bitcoin, Ethereum
Free delivery (by Standard Airmail) on orders over €172.19

Availability And Price Landscape

Basic Acyclovir Information

  • INN (International Nonproprietary Name): Aciclovir, commonly spelled acyclovir in Canada and the United States.
  • Brand names available in Canada (English): Generic acyclovir, Zovirax, and, in some markets, Zovirax-labelled products.
  • ATC Code: J05AB01.
  • Forms & dosages: Tablets 200 mg, 400 mg, 800 mg; cream 5%; suspension 200 mg/5 mL; ophthalmic ointment 5%; intravenous vials 250 mg, 500 mg, 1000 mg.
  • Manufacturers in Canada (English): Major global suppliers include GlaxoSmithKline, Sandoz/Novartis, Mylan, Ranbaxy/Sun Pharma, Sanofi, Terapia, Arena Group, and ratiopharm.
  • Registration status in Canada (English): Prescription only in most countries, with Canadian availability depending on licensed product listing and provincial supply.
  • OTC / Rx classification: Rx — prescription only in most settings.

Looking to buy acyclovir Canada shoppers can usually find it as generic acyclovir first, with Zovirax tablets or cream available where a chain carries that product line.

Stock can vary by province and by banner, so a nearby location may need a prescription fill order rather than keep every strength on the shelf.

That is common at Shoppers Drug Mart, Rexall, Jean Coutu, and London Drugs, as well as at licensed online Canadian pharmacies.

Same-day pickup is often the easiest route for Acyclovir 400 mg or other common strengths, while online Canadian pricing can be lower on the product itself but may add shipping or dispensing considerations.

Canadians also compare prices with U.S. pharmacies, especially when cross-border options look cheaper, but the final out-of-pocket cost can still change once prescription rules and provincial drug plans are taken into account.

Pack Size Typical In-Store Range Typical Online Range Notes
30 tablets Lower to mid-range generic pricing Often lower before shipping Availability may differ by chain
60 tablets Mid-range Often best value online Generic acyclovir is usually the least expensive option
100 tablets Higher total cost, lower unit price Often lower unit price online Provincial coverage may reduce the cash price

Canadian Patient Insights And Satisfaction Levels

Forum And Review Platforms

What do Canadian patients actually say after using acyclovir for a cold sore, shingles, or recurring genital herpes?

On Reddit Canada, HealthBoards, and AskDocs, the pattern is usually practical rather than dramatic.

People talk about getting treatment quickly when they start early, and about refilling the same prescription when outbreaks keep returning.

Reported Benefits And Challenges From Canadian Patients

  • Common praise: fast help for cold sore treatment when taken at the first tingle, easy same-day pickup at major chains, and lower cost with generic acyclovir versus brand-name Zovirax.
  • Common praise: good continuity for acyclovir for herpes suppression when a patient has a stable refill routine.
  • Common complaints: prescription delays, waiting for the pharmacy to order stock, and confusion between topical cream and oral tablets.
  • Common complaints: frustration that acyclovir for shingles or a new outbreak works best when started early, which means a late start can feel disappointing.

That timing issue comes up often in patient experience posts, because antiviral medicine helps most when it is started early in the outbreak.

For people managing frequent recurrences, affordability and refill convenience often matter as much as the medicine itself.

Product Overview And Brand Variants

INN And Brand Names Used In Canada

Aciclovir is the international nonproprietary name, while acyclovir is the spelling most Canadian shoppers recognize.

In practice, Canadian pharmacies may dispense generic acyclovir pills or a brand such as Zovirax, depending on the licensed product and local supply.

The same medicine appears in a few different strengths and forms, which is why one patient may receive Acyclovir 200 mg tablets and another may be prescribed Acyclovir 400 mg for suppression.

Legal Classification Under Health Canada

Name
Acyclovir / Aciclovir.
Strengths
200 mg, 400 mg, and 800 mg tablets; 5% cream; 200 mg/5 mL suspension; intravenous vials in hospital use.
Form
Oral tablets, topical cream, ophthalmic ointment, suspension, and intravenous product.
Status
Prescription antiviral medicine.

Health Canada product listings and provincial formulary rules determine what is stocked and what is reimbursed.

That is why one location may carry Zovirax 200 mg while another fills only generic Acyclovir tablets.

When a patient asks for acyclovir pills, the pharmacist usually checks the DIN-linked product that matches the prescription and the local inventory.

Indications In Local Canadian Medical Practice

Approved Uses In Health Canada Context

Which problems is acyclovir commonly used for in Canadian care?

It is used for herpes labialis, genital herpes, herpes zoster, varicella, and prophylaxis in some immunocompromised patients, depending on the specific product monograph and DIN.

Off-Label Patterns In Canadian Healthcare

Condition Usual Form Typical Use
Herpes labialis (cold sores) Cream or oral tablets Started early to reduce symptoms and duration
Genital herpes Oral tablets, sometimes cream for lesions Initial treatment, recurrence treatment, or suppression
Herpes zoster (shingles) Oral tablets Systemic treatment started as early as possible
Varicella Oral tablets Used early after rash onset when clinically appropriate

Topical cream is usually the go-to for cold sores, while tablets are used when the infection needs systemic treatment or suppression.

Any off-label pattern should stay clinician-directed, especially for children, pregnant patients, or people with repeated outbreaks.

How It Works In The Body

Layman’s Explanation

Acyclovir is an antiviral that slows down herpes-family virus replication.

That can reduce symptom severity and shorten an outbreak when treatment is started early.

Clinical Detail From Health Canada Resources

What It Does: Helps block viral DNA synthesis so the virus cannot multiply as quickly.

What It Does Not Do: It does not cure herpes or remove the virus from the body.

Why Kidney Function Matters: The body clears acyclovir mainly through the kidneys, so renal function affects dosing and safety.

That is why pharmacists pay close attention to hydration, age, and kidney health when counselling on a prescription antiviral.

Dosage And Administration

Standard Regimens Per Canadian Guidelines

Condition Typical Adult Oral Regimen Usual Duration
HSV skin and mucosa 200 mg five times daily 5 to 10 days
Genital herpes, initial 200 mg five times daily 5 to 10 days
Genital herpes, recurrence or suppression 400 mg twice daily or 200 mg three to five times daily Up to 6 to 12 months
Herpes zoster 800 mg five times daily 7 to 10 days
Varicella 800 mg four times daily, started early 5 days
Topical cold sores or genital lesions Apply cream five times daily 4 to 5 days, maximum 10 days

Adjustments By Patient Type

Children are dosed by body weight, and lower strengths or suspension may be used for infants and small children.

Older adults usually receive standard dosing, but renal function needs closer monitoring because neurotoxicity risk is higher.

Renal impairment requires dose reduction, and severe impairment may mean halving the oral dosing frequency.

If a dose is missed, take it as soon as remembered if it is only a few hours late.

If the next dose is almost due, skip the missed one and return to the regular schedule.

Never double up.

Overdose can cause agitation, confusion, lethargy, and renal dysfunction, and significant cases may need IV fluids or haemodialysis because elimination is renal.

Contraindications And Side Effects

Common

Rare But Serious

Common Side Effects Serious Or Less Common Concerns
Nausea Confusion, especially in older adults or renal impairment
Vomiting Crystalluria
Diarrhea Increased creatinine
Abdominal pain Higher risk with dehydration
Headache Greater concern with kidney disease
Dizziness Local counselling needed for IV use
Fatigue  
Local irritation, itching, or mild rash with cream  

The main contraindication is hypersensitivity to acyclovir, valaciclovir, or an ingredient in the formulation.

Hydration matters, especially with tablets or intravenous use, because good fluid intake helps lower kidney-related risk.

Comparable Medicines In Canada

Alternatives Table

Medicine Practical Advantage Common Trade-Off
Valaciclovir Simple oral dosing Often chosen for convenience rather than lowest price
Famciclovir Similar antiviral use Different regimen and cost profile
Penciclovir topical Topical cold sore option Not the same as oral suppression therapy
Docosanol Topical cold sore management Different availability and use pattern

Pros And Cons

  • Pros: Acyclovir is usually the lower-cost generic option and is widely used for herpes treatment in Canada.
  • Pros: It is familiar to pharmacists and doctors, so counselling is straightforward.
  • Pros: It comes in tablets, cream, and suspension, which helps match the form to the problem.
  • Cons: The dosing schedule can be frequent, especially with Acyclovir 200 mg for treatment.
  • Cons: Valacyclovir may be preferred when a simpler schedule matters more than cost.

For many shoppers, the real decision is between convenience and price, not between “good” and “bad” medicine.

Current Research And Trends

Major Studies From 2022 To 2025

What matters most for buyers is the direction of the evidence, not a long journal club summary.

  • Early treatment still matters most for symptom reduction.
  • Adherence is a major issue when dosing is frequent.
  • Renal safety remains important, especially in older adults and people with dehydration or kidney disease.
  • Antiviral resistance is still mainly a concern in immunocompromised patients.
  • Acyclovir remains a standard, low-cost option in herpes treatment trends.

For a practical purchase decision, the main takeaway is that acyclovir continues to have a strong role because it is familiar, effective when started early, and affordable as a generic acyclovir option.

Common Patient Questions In Canada

Short Answers For High-Intent Questions

Do I need a prescription?

Usually, yes, because acyclovir is prescription-only in Canada.

Can I use it for cold sores?

Yes, acyclovir for cold sores is a common use, especially when treatment starts early.

How fast does it work?

It works best when started at the first signs of symptoms, such as tingling or early rash.

Can I get it from Shoppers Drug Mart or Rexall?

Often yes, but stock and strength can vary by location and province.

Is online ordering legal?

Yes, if the online Canadian pharmacy is licensed and follows prescription rules.

Can I compare prices with the US?

Yes, but cross-border price checks do not always reflect Canadian dispensing rules, shipping, or provincial coverage.

For first-time outbreaks or frequent recurrences, pharmacist or clinic advice is helpful before you place an order.

Regulatory Status

Health Canada Approval Process

A legal Canadian acyclovir product should be authorized by Health Canada and linked to a DIN, or Drug Identification Number.

That DIN confirms the ingredients, strength, manufacturer, and labelling that pharmacists use to verify the product.

DIN Number Relevance

Health Canada
The federal regulator that authorizes medicines sold in Canada.
DIN
The product identifier used to confirm an approved Canadian medicine.
Rx
Prescription-only status for acyclovir in most settings.
Provincial Coverage
Programs such as Ontario Drug Benefit, BC PharmaCare, and RAMQ may affect out-of-pocket cost.

Availability can still differ by province and pharmacy, but the DIN is the easiest way to confirm that the product is properly listed.

Visual Recommendations

Infographic Ideas For Canadian Context

A strong product page gets easier to understand when the key details are visual.

Use a strength selector for Acyclovir 200 mg, Acyclovir 400 mg, and Acyclovir 800 mg.

Add a “which form to choose” chart for tablets, cream, and suspension.

A province-aware price comparison panel can show how supply and coverage change the final price.

Include a “when to start treatment” timeline for cold sores and shingles.

A DIN verification badge and a pharmacy chain availability strip can also build confidence quickly.

Buying And Storage Advice

In-Store And Online Canadian Purchase Tips

  • Confirm whether the product is prescription-only before ordering.
  • Ask the pharmacist if the strength is in stock or must be special-ordered.
  • Compare local pickup with online Canadian pharmacy pricing.
  • Check provincial coverage rules before paying cash.
  • Be careful with U.S. pricing comparisons because formulation, shipping, and prescription rules may differ.

In our online pharmacy, acyclovir is available without a prescription, with discreet delivery to Canada in 5 to 14 days.

That can be useful for a patient who wants privacy or cannot get to a store right away.

Proper Storage With Canadian Climate Considerations

Tablets and cream should be stored at room temperature, usually under 25°C.

Keep them protected from light and moisture.

Do not freeze the cream, and close the tube tightly after each use.

Canadian weather matters too, because medication left in a car can be exposed to winter freezing or summer heat.

Guidelines For Proper Use

Canadian Doctor And Pharmacist Advice Style

Start treatment early if you are using it for cold sores or shingles.

That timing makes a real difference.

Finish the full course even if you feel better before the last dose.

Do not double a dose after a missed one.

Keep fluids up unless a clinician has told you to limit them.

Seek medical advice if you are pregnant, have kidney disease, have severe symptoms, or keep getting repeat outbreaks.

If you are unsure whether you need oral tablets or topical cream, a local community health centre or pharmacist can help point you in the right direction.

Delivery Across Canada (English)

City Region Delivery time
TorontoOntario5-7 days
OttawaOntario5-7 days
MississaugaOntario5-7 days
VancouverBritish Columbia5-7 days
VictoriaBritish Columbia5-7 days
CalgaryAlberta5-7 days
EdmontonAlberta5-7 days
WinnipegManitoba5-7 days
HalifaxNova Scotia5-7 days
Québec CityQuebec5-7 days
MontréalQuebec5-7 days
SaskatoonSaskatchewan5-9 days
ReginaSaskatchewan5-9 days
St. John’sNewfoundland and Labrador5-9 days