Canada Med Stop Prescription Required
IMPORTANT NOTE: A valid Prescription is required to be mailed or faxed to complete this order. I acknowledge that I will need to be contacted to complete a health profile before my order is shipped.
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Efavirenz is an antiviral used to prevent multiplication of HIV virus. It is not a cure for HIV/AIDS. It is intended for use by patients who are at least 3 months old and weigh 8 lbs.

Take on empty stomach at bedtime. Must be taken in combination with other antivirals. If you consumed this drug through opening it and sprinkling the contents into something else, do not eat for 2 hours.


Do not use if you also use elbasvir and grazopevir for hepatitis C. Do not take Atripla. Do not use if pregnant. Hormonal contraception may be less effective during efavirenz treatment. Inform doctor of all known conditions and medications. Avoid driving until you know how this drug affects you reactions. Alcohol may increase side effects.

Side Effects

Get medical attention immediately if you experience serious symptoms like: allergic reaction symptoms, severe skin reaction, seizure, liver problems. Psychiatric side effects include: confusion, hopelessness, suicidal thoughts, paranoia, anxiety, speech problems. Inform doctor if you notice: signs of new infection, speech and swallowing problems, eye and balance problems, enlarged thyroid, impotence, menstrual changes. Other side effects include: nausea and vomiting, rash, dizziness, drowsiness, headache, fatigue, insomnia, strange dreams, body fat distribution.

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Sally D

March 14, 2023

Meds arrived quickly, probably because they came from Canada. In good shape.

Dwayne M

March 14, 2023


Pamela V

March 14, 2023

I am always very pleased with being able to order from Medicare will only cover half the year and then I am in the donut hole....Xarelto works very well for my A-Fib and because of you I can use all year long

Nancy M

March 14, 2023

The representatives are excellent in customer service. I have used this drug company for many years. The price of my prescription is the reason I use Canada Meds.

Carolyn W

March 14, 2023

good interaction and very helpful

Carol K

March 14, 2023

I have used Canada Med Stop for about 10 years. My orders have always been efficiently handled and approved by my doctors. Plus the cost of my prescription has been a 3rd of the cost in the US.

A valid Prescription is required to be mailed or faxed to complete this order. I acknowledge that I will need to be contacted to complete a health profile before my order is shipped.

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Our goal is to bring you the most affordable medication. If you find a lower price advertised by another website or your local pharmacy, we’ll match that price or beat it by 10% of the difference.* Call us at 1-877-202-1513 and a member of our CareTeam will be happy to assist you.

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* Some exceptions may apply
Some exceptions may apply. To qualify for price matching, competitors must meet our standards for patient safety. Advertised prices must be for medication of the same type, strength, quantity, and form.