Can valacyclovir DESTROY your kidneys?

Hey there,

So I came across this question today about the prescription anti-viral valacyclovir:

“I know the dosage for Valacyclovir is 2g twice in a day. Does anyone else get a sore back? I feel like it’s hurting my kidneys and avoid taking it for this reason”


I don’t know about you, but if I got pain in my kidneys from taking any type of medication, I’d probably never take it again.

But just for fun, I looked up the side effects of valacyclovir. Here’s what I found:

  • Headache
  • Nausea and dizziness
  • Vomiting
  • Stomach pain

But wait! Those are only the ‘mild’ side effects. It gets worse:

  • Kidney failure
  • Unusual behavior (including aggressiveness, shaking, confusion, hallucinations, seizures and even coma)

So not only can valacyclovir destroy your kidneys, it can also make you go crazy.

Fun times.

Look, as unpleasant as cold sores are, I’m pretty sure your kidneys are more important.

I mean, I hate cold sores. But I’d probably hate dialysis even more.

Now obviously, it’s pretty darn rare to get kidney failure from a couple of doses of valacyclovir. Especially since this dosage is only meant to be taken twice over the course one day (for acute treatment of an existing cold sore only).

But what about DAILY prescription anti-virals designed to prevent cold sores?

Here’s the list of side effects for acyclovir (taken from WebMD), which is the most popular daily cold sore pill:

  • Pins And Needles On Skin
  • Agitation
  • Diarrhea
  • Dizziness
  • Drowsiness
  • Hair Loss
  • Headache
  • Irritation Of The Stomach Or Intestines
  • Muscle Pain
  • Nausea
  • Stomach Cramps
  • Vomiting

Again, those are the mild ones. Here are the more severe side effects:

  • Change in vision
  • Anaphylaxis
  • Toxic epidermal necrolysis
  • Angioedema
  • Encephalopathy
  • Speech disorder
  • Jaundice
  • Abnormal liver function
  • Aggressive behavior
  • Anemia
  • Bloody urine
  • Coma
  • Confusion
  • Decreased blood platelets
  • Delirium
  • Erythema multiforme (an allergic skin reaction)
  • Fever
  • Fluid retention in the legs, feet, arms or hands
  • Hallucinations
  • Hives
  • Hepatitis
  • Itching
  • Kidney failure
  • Low levels of white blood cells
  • Mental problems
  • Seizures
  • Swollen lymph nodes

Jesus H. Christopher Walken. Talk about a laundry list!

It’s even worse than the valacyclovir. It can affect your entire body! Brain to liver to skin to toes.

So, what do you think are your odds of facing some kind of nasty side effect at some point in time if you’re taking acyclovir every single day?

I don’t have statistics, but I can only assume your risk skyrockets.

Now look, I’m not writing this to try and scare you or convince you to never take a prescription pill again.

I truly believe that anti-virals can be an extremely useful tool in the fight against cold sores, especially DURING an outbreak.

But I also think you should know what you’re getting into, risks and all.

And I also think you should know that you don’t need these pills to prevent cold sores from coming back.

Because the truth is, prescription anti-virals don’t actually stop the herpes virus from reactivating in the first place (which is the first step of a cold sore).

Instead, daily anti-virals are all about blocking the virus from replicating IF and WHEN it does reactivate.

That’s not true prevention. That’s carrying around an extinguisher just in case a fire breaks out.

On the other hand, if you stop cold sores from breaking out in the first place, all you need to do is make a few tweaks to your diet and lifestyle.

When you join my newsletter, I show you what these tweaks are.

And unlike prescription antivirals, they’re 100% safe and natural. That way, you don’t risk losing your kidneys or your mind.

The fact is, if you really want full control over your cold sores, you need to find out WHY they keep coming back, and WHAT you need to do to prevent them from popping out in the first place.

Take the Cold Sore Quiz at the link below:

Take the 60-Second Cold Sore Quiz Right Now

It’s designed to narrow down why YOUR cold sores keep coming back over and over again, and show you how to finally put a stop to it.

Discover how to *block cold sores at the very source, without antivirals or strict diet rules. Sign up to read daily email tips and download the first chapter of the “Cold Sore Control” outbreak prevention system for free right now…
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Chris "the Cold Sore Killer" Mueller