Q and A

Question

What are the pills marked with M171 and D100?

Answer

If your doctor prescribed HIV medication that looks like the pill in the picture and has M171 embossed, this is likely to be Tribuss.

tribuss

Picture: Tribuss, manufactured by Aspen.

The picture is not very clear, but M171 is one one side and D100 is on the other.

This is based on the information at this website.

http://www.events.za.bz/news-archive.aspx?ID=697

Tribuss is a generic version of Atripla and it is manufactured by Aspen. It is widely used in South Africa.

Just like Atripla, Tribuss contains three active HIV drugs – efavirenz, tenofovir-DF and emtricitabine.

Sometimes Tribuss is mainly used as an HIV treatment by people who are HIV positive. However, this is an older treatment that is steadily being switched to newer drugs in many countries.

Some countries use Tribuss as a way to prevent HIV after recent risk for people who are HIV negative. This way of using HIV meds is called PEP. Tribuss is not recommended as PEP in most countries though because of the risk of side effects that are higher in people who are HIV negative.

This answer was updated in December 2019 from an orginal question posted in September 2016.

213 comments

  1. Annonymous

    Is M171 and M117 the same,because i started taking M171 and now was given M117,wont it affect me negatively?

  2. Lisa Thorley

    Hi Dzunisani,

    One tablet a day. At if possible in the evening. Please see here: http://i-base.info/guides/1561

  3. Dzunisani

    How many m117 pill do you need to take per day?

  4. Roy Trevelion

    Hi Bongani,

    If you’re taking Tribuss as PEP it’s a good idea to have an HIV test. Ususally PEP is started at least 48 hours after risk. But some guidelines say they can work if started before 72 hours. They are given as a 28 day course. And then you need to wait another 28 days for a test to confirm your HIV negative result.

    It’s a good idea to go to the doctor and ask for an HIV test. HIV is not always transmitted when you have sex without a condom with a person who is HIV positive. And if that person is on HIV treatment with undetectable HIV, they cannot transmit HIV.

    So you can ask the doctor about your risk. You can also ask if there are better meds for PEP.

  5. Bongani

    Hi
    For how many days shud i take the 171 pill if i slept with an HIV positve patner while i’m HIV nagative ?

  6. Roy Trevelion

    Hi Nozipho,
    Please see the answer on the Q&A above.

  7. Nozipho

    Is the D100 pill for HIV?

  8. Roy Trevelion

    Hi Anonymous,

    It sounds good that you’re back taking meds. It’s up to you to decide what time of the day to take them. You can work it around your schedule. You might want to take them at bedtime so you don’t get any side effects during the daytime. And it doesn’t matter what time you go to the toilet. The meds go into your body soon after they get to your stomach.

  9. Anonymous

    I take my med on the year of 2016 and i drop it on the year 2017 may and i now i taking back med…. But now im taking it in the morning my q is its ok or not….it stay how long before i go to the toilete

  10. Roy Trevelion

    Hi Dikeledi,
    If you have just been diagnosed this can be a difficult time. You can read much more here. But it’s important to go to the clinic for your treatment.
    The clinic can test to see what will be the best treatment for you as an individual. That’s why it’s not a good idea to buy pills from other people.
    Modern HIV treatment (called ART) is safe and effective. So please don’t worry about going to the clinic. You can read more in this Introduction to ART.

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