Pharmacy

Pharmacy questions? Ask a pharmacist online.

Ask an Expert,
Get an Answer ASAP!

This answer was rated:

I have the flu and woke up with a cold sore. I have a

Hi - I have the...
Hi - I have the flu and woke up with a cold sore. I have a prescription from the last time I got a cold sore. On the bottle it says to take 500mg once a day but I recall the Dr. telling me to take a higher dosage for a shorter amount of time like 3-days but I don't remember the details. Can you please advise? Thanks. I weight 140 lbs and I'm 5.6" if you require that info.
Show More
Show Less
Ask Your Own Pharmacy Question
Answered in 2 minutes by:
3/13/2018
Shaun Dillavou
Shaun Dillavou, Pharmacist
Category: Pharmacy
Satisfied Customers: 191
Experience: Doctor of Pharmacy with 15 years experience in multiple settings.
Verified

Hello - This is Dr. Shaun and I am a pharmacist with over 15 years of experience. Thank you for the question and for using JustAnswer.

Provided the medication you have been prescribed is valcyclovir (Valtrex), the typical dose for an active cold sore is 2 grams twice daily for a single day. If using the 500mg, that would be 4 tablets all at once in the morning, and then 4 tablets all at once in the evening.

I hope this information helps you. If you need more or would like clarification, please do not hesitate to ask. Please also take a moment to rate your experience.

Ask Your Own Pharmacy Question
Customer reply replied 4 months ago
Thank you Dr. Shaun! Using the 500mg, that would be 4 tablets all at once in the morning, and then 4 tablets all at once in the evening for 1 day only? Correct?

That is correct. A total of 8 tablets in one day.

Shaun Dillavou
Shaun Dillavou, Pharmacist
Category: Pharmacy
Satisfied Customers: 191
Experience: Doctor of Pharmacy with 15 years experience in multiple settings.
Verified
Shaun Dillavou and 87 other Pharmacy Specialists are ready to help you
Ask your own question now
Customer reply replied 4 months ago
Perfect. Thank you so much! Have a great day.
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with a pharmacistLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask Shaun Dillavou Your Own Question
Shaun Dillavou
Shaun Dillavou
Shaun Dillavou, Pharmacist
Category: Pharmacy
Satisfied Customers: 191
191 Satisfied Customers
Experience: Doctor of Pharmacy with 15 years experience in multiple settings.

Shaun Dillavou is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

I can go as far as to say it could have resulted in saving my sons life and our entire family now knows what bipolar is and how to assist and understand my most wonderful son, brother and friend to all who loves him dearly. Thank you very much

Corrie MollPretoria, South Africa

I thank-you so much! It really helped to have this information and confirmation. We will watch her carefully and get her in for the examination and US right away if things do not improve. God bless you as well!

ClaudiaAlbuquerque, NM

Outstanding response time less than 6 minutes. Answered the question professionally and with a great deal of compassion.

KevinBeaverton, OR

Suggested diagnosis was what I hoped and will take this info to my doctor's appointment next week.
I feel better already! Thank you.

ElanorTracy, CA

Thank you to the Physician who answered my question today. The answer was far more informative than what I got from the Physicians I saw in person for my problem.

JulieLockesburg, AR

You have been more help than you know. I seriously don't know what my sisters situation would be today if you had not gone above and beyond just answering my questions.

John and StefanieTucson, AZ

I have been dealing with an extremely serious health crisis for over three years, and one your physicians asked me more questions, gave me more answers and encouragement than a dozen different doctors who have been treating me!!

Janet VPhoenix, AZ

< Previous | Next >

Meet the Experts:

Drugdad

Drugdad

Pharmacist

1,735 satisfied customers

I have a doctor of pharmacy degree with experience in both retail and hospital. I will be happy to share this knowledge with you

pharmacydoc

pharmacydoc

Pharmacist

410 satisfied customers

Educator with hospital and retail experience.

Dr Mike, PharmD

Dr Mike, PharmD

Pharmacist

204 satisfied customers

Doctor of Pharmacy, 20+ yrs experience, trained at the University of Iowa

PharmDoc8283

PharmDoc8283

Pharmacist

154 satisfied customers

Doctorate in Pharmacy (PharmD), Board Cert in Geriatrics (CGP), exp in long-term care and retail

Clauduke,RPh

Clauduke,RPh

Pharmacist

90 satisfied customers

Pharmacist for 15 years in multiple practice settings.

Doctorpharmacy

Doctorpharmacy

Pharmacist

64 satisfied customers

Have dr's degree in pharmacy, have been in practice 20 years

Sherwin Kashani

Sherwin Kashani

Pharmacist

59 satisfied customers

Registered pharmacist in Australia.

< Previous | Next >

Related Pharmacy Questions
The back of my tongue feels very swollen, the back of my
The back of my tongue feels very swollen, the back of my throat hurts as well but not as much as my throat. It is very painful to swallow. The pain woke me up at 6AM. I am a 34-year-old woman and have… read more
Dr. Jonathan Yilmaz
Dr. Jonathan Yilmaz
Clinical Pharmacist
Doctoral Degree
439 satisfied customers
Is there an over the counter medicine that treats cold sores
Is there an over the counter medicine that treats cold sores like valacyclovir HCL 1 gra? … read more
Dr. Bridget
Dr. Bridget
Clinical Pharmacist
Doctoral Degree
1,404 satisfied customers
Pediatric dose, I would like to know how much CBD oil a kid
I would like to know how much CBD oil a kid can take ? he weights 67 lbs. … read more
Dr. Bridget
Dr. Bridget
Clinical Pharmacist
Doctoral Degree
1,404 satisfied customers
I was reading something very disheartening online. A woman
I was reading something very disheartening online. A woman said that she received one of her medications and was taking it for awhile but noticed it not working right. Turns out that the makers of the… read more
Dr. Bridget
Dr. Bridget
Clinical Pharmacist
Doctoral Degree
1,404 satisfied customers
What are some good diet pills that do not need approval by
What are some good diet pills that do not need approval by doctor of a patient on medication?… read more
Dr. C. Rollins
Dr. C. Rollins
Doctoral Degree
1,062 satisfied customers
I am on a medical regimen that includes Oxycodone 30mg x 3,
I am on a medical regimen that includes Oxycodone 30mg x 3, and Lisinopril HCTZ 10-12.5 x1. The pain meds are for a serious fall injury 16 years ago, and I have been on them since, switching occasiona… read more
Dr. Phil, MD
Dr. Phil, MD
Internal Medicine Physician
Doctoral Degree
2,842 satisfied customers
I've been out of town in Los Angeles since Friday. It's now
I've been out of town in Los Angeles since Friday. It's now Sunday evening and I realized I've inadvertently left my prescription drug -- lovastatin -- near a window where the sun is coming in. Some o… read more
Dr. Phil, MD
Dr. Phil, MD
Internal Medicine Physician
Doctoral Degree
2,842 satisfied customers
I am obese and have tried all dieting methods. I eat fairly
I am obese and have tried all dieting methods. I eat fairly healthy, rarely eat red meat or fried foods and diet is high in vegetables. My blood pressure is maintained by medication (Altace) and my ch… read more
Dr. C. Rollins
Dr. C. Rollins
Doctoral Degree
1,062 satisfied customers
I live on the East coast in Connecticut and my physician
I live on the East coast in Connecticut and my physician ordered a compounded medication from IMC Pharmacy in Santa Ana CA, rather than down at my local CVS pharmacy. I can't find it anywhere does any… read more
Dr. C. Beck
Dr. C. Beck
Advanced Clinical Pharmacist
Doctoral Degree
20 satisfied customers
My cat is taking a prescription methimazole oral suspension.
My cat is taking a prescription methimazole oral suspension. The pharmacist gave me a bottle that was half the liquid of the previous bottle. Here are the amounts. New Bottle: Methimazole 5mg/ml, 30 m… read more
Drugdad
Drugdad
Pharmacist
Doctoral Degree
1,735 satisfied customers
My doctor has had a problem writing a prescription for
My doctor has had a problem writing a prescription for Nicotrol NS for me. The website says 1 dose is a spray to each nostril and consists of 1 mg. Maximum 5 doses per hour or 40 doses per day. Each b… read more
Drugdad
Drugdad
Pharmacist
Doctoral Degree
1,735 satisfied customers
My 9-year old son was given a dose of Pin-X last night for
My 9-year old son was given a dose of Pin-X last night for treatment of pinworms. However, the bottle was not shaken before the dose was given. It was completely clear liquid, not the normal yellow ti… read more
pharmacydoc
pharmacydoc
Pharmacist
Doctoral Degree
410 satisfied customers
I have heard that the generic version of Effexor can have
I have heard that the generic version of Effexor can have significantly less of the active ingredients. If that is the case, is it acceptable to increase the dosage of the generic brand to get the sam… read more
Clinical Pharmacist
Clinical Pharmacist
Advanced Practice Pharmacist
Doctoral Degree
48 satisfied customers
When conducting an audit of a pharmacy, are prescriptions
When conducting an audit of a pharmacy, are prescriptions samples looked at for accuracy of dosing conversions (i.e.) lbs to kilagrams?… read more
Clinical Pharmacist
Clinical Pharmacist
Advanced Practice Pharmacist
Doctoral Degree
48 satisfied customers
What is the maximum safe daily dosage of prednisone? I have
What is the maximum safe daily dosage of prednisone? I have a severe sore neck and saw a doctor today who prescribed prednisone 10 mg tablets to be taken in decreasing amounts over the next several da… read more
P. Law
P. Law
Doctor
Bachelor Degree
12 satisfied customers
I am looking for an effective appetite suppressant. Could
I am looking for an effective appetite suppressant. Could you suggest one. And I am also want to know if phentermine is available still.… read more
PharmDoc8283
PharmDoc8283
Pharmacist
Doctoral Degree
154 satisfied customers
I am travelling Vietnam and have had diarrhoea for 3 days on
I am travelling Vietnam and have had diarrhoea for 3 days on and off. This has been helped by Immodiumtablets but I don't think it has stopped the problem. I consulted a pharmacist here and asked for … read more
P. Law
P. Law
Doctor
Bachelor Degree
12 satisfied customers
I have a prescription for skelaxin that is expired. My
Hi! I have a prescription for skelaxin that is expired. My muscle is acting up again, but I can't get to the doctor for a new prescription. What will happen if I taked the expired prescription?… read more
Dr. Kel- Medicine Woman
Dr. Kel- Medicine Woman
Pharmacist
Doctoral Degree
5 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x