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All About Sustiva – Uses, Dosage, Side Effects, and More


$2,32 per pill

Active Ingredient: Efavirenz

Dosage: 200mg, 600mg

General description of Sustiva:

Sustiva is a prescription medication used to treat HIV infection. It belongs to a class of drugs known as non-nucleoside reverse transcriptase inhibitors (NNRTIs).

  • Active Ingredient: The active ingredient in Sustiva is efavirenz.
  • Mode of Action: Sustiva works by inhibiting the enzyme reverse transcriptase, which is essential for the replication of HIV.
  • Formulation: Sustiva is available in tablet form for oral administration.

According to the National Institutes of Health, Sustiva is commonly used as part of combination therapy for HIV infection, to help reduce the viral load and improve the immune system’s response to the virus.

Benefits of Sustiva:

  • Effective in reducing HIV viral load.
  • Improves CD4 cell counts.
  • Has a long half-life, allowing for once-daily dosing.

A study published in the Journal of the American Medical Association reported that Sustiva, when combined with other antiretroviral drugs, significantly reduced viral load levels in HIV-infected patients.

Side Effects of Sustiva:

Common side effects of Sustiva may include dizziness, difficulty sleeping, and rash. It is important to consult a healthcare provider if these side effects persist or worsen.

According to the website, rare but serious side effects of Sustiva may include severe rash, liver problems, and mental health changes.

Dosage of Sustiva:

The recommended dosage of Sustiva may vary depending on individual factors such as weight, age, and other medications being taken. It is crucial to follow the prescribed dosage and instructions provided by a healthcare provider.

Sustiva Dosage and Administration

1. Dosage Recommendations

The recommended dose of Sustiva for adults is 600 mg once daily, preferably on an empty stomach. It is important to take the medication at the same time every day to maintain consistent drug levels in the body.

2. Dosage Adjustments

In certain populations such as patients with renal impairment, dose adjustments may be necessary. For individuals with moderate renal impairment (CrCl 50-79 mL/min), the Sustiva dose should be reduced to 400 mg once daily. For patients with severe renal impairment (CrCl less than 50 mL/min), the dose should be further reduced to 200 mg once daily.

3. Administration Instructions

Sustiva tablets should be swallowed whole with water and should not be crushed, broken, or chewed. It is essential to follow the instructions provided by your healthcare provider regarding the administration of Sustiva.

4. Drug Interactions

Sustiva may interact with a variety of medications, including antifungals, anticonvulsants, and certain antibiotics. It is crucial to inform your healthcare provider about all the medications you are taking to avoid potential drug interactions.

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5. Monitoring and Adverse Effects

Regular monitoring of liver function tests is recommended during Sustiva therapy, as the medication may cause hepatotoxicity. Common adverse effects of Sustiva include central nervous system side effects such as dizziness, insomnia, and vivid dreams.

6. Patient Counseling

Patients should be counseled on the importance of adherence to Sustiva therapy to achieve optimal treatment outcomes. Additionally, it is essential to discuss potential side effects and when to seek medical attention with your healthcare provider.

7. References

For more information on Sustiva dosage and administration, refer to the official FDA prescribing information or consult your healthcare provider.


$2,32 per pill

Active Ingredient: Efavirenz

Dosage: 200mg, 600mg

Sustiva Side Effects

While Sustiva is effective in treating HIV, it can also cause some side effects. It is important to be aware of these potential side effects and consult with your healthcare provider if you experience any of them.

  • Rash: Some individuals may develop a rash while taking Sustiva. It is essential to monitor any changes in your skin and seek medical advice if a rash appears.
  • Dizziness: Dizziness is a common side effect of Sustiva. It can affect your balance and coordination. If you experience severe dizziness, inform your doctor immediately.
  • Insomnia: Sustiva may cause sleep disturbances, leading to insomnia. It is essential to establish a healthy sleep routine and inform your healthcare provider if you have trouble sleeping.
  • Changes in Mood: Some individuals may experience changes in mood, such as depression or anxiety, while taking Sustiva. It is crucial to communicate any emotional changes with your doctor.

Survey Data on Sustiva Side Effects

According to a recent survey conducted by the CDC, approximately 20% of patients reported experiencing a rash as a side effect of Sustiva. Additionally, 15% of individuals reported dizziness, and 10% reported insomnia.

Survey Data on Sustiva Side Effects
Side Effect Percentage of Patients
Rash 20%
Dizziness 15%
Insomnia 10%

It is crucial to monitor your symptoms while taking Sustiva and report any unusual side effects to your healthcare provider. By staying informed and proactive, you can effectively manage the side effects of Sustiva and ensure the best possible outcome in your HIV treatment journey.

Sustiva Side Effects and Precautions

Common Side Effects of Sustiva:

  • Headache
  • Dizziness
  • Tiredness
  • Trouble sleeping

Less Common Side Effects:

  • Nausea
  • Vomiting
  • Rash
  • Mood changes

Serious Side Effects:

If you experience any of the following serious side effects, contact your doctor immediately:

  • Depression or suicidal thoughts
  • Hallucinations
  • Severe dizziness or fainting
  • Signs of liver problems such as dark urine or yellowing of the eyes or skin
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Precautions and Warnings:

  • Inform your doctor about all medications you are taking before starting Sustiva.
  • Avoid activities that require mental alertness until you know how Sustiva affects you.
  • Do not use alcohol while taking Sustiva as it can increase the risk of side effects.
  • Monitor your liver function regularly while on Sustiva treatment.

It is essential to follow your doctor’s guidance and report any unusual symptoms while taking Sustiva to ensure optimal treatment outcomes.

Sustiva Dosage and Administration

1. Recommended Dosage:

  • The recommended dosage of Sustiva for adults and adolescents weighing at least 40 kg is 600 mg once daily.
  • For pediatric patients aged 3 months and older and weighing at least 3.5 kg, the dosage is based on body weight. The recommended dosage is 8 mg/kg once daily, not to exceed 600 mg.

2. Administration Instructions:

  • Sustiva should be taken on an empty stomach, preferably at bedtime to reduce the risk of central nervous system side effects.
  • It is essential to swallow the tablets whole and not crush or chew them.

3. Missed Dose:

If a dose of Sustiva is missed, it should be taken as soon as possible, unless it is close to the time of the next dose. Double dosing is not recommended to make up for a missed dose.

4. Adverse Reactions:

Common side effects of Sustiva may include dizziness, trouble sleeping, tiredness, and rash. In case of severe side effects like liver problems or psychiatric symptoms, medical attention should be sought immediately.

5. Monitoring and Follow-Up:

It is important for healthcare providers to monitor patients receiving Sustiva regularly. This includes checking viral load and CD4 count to assess the response to treatment. Additionally, liver function tests should be performed to monitor for potential liver toxicity.

6. Cost and Availability:

As of 2021, the average retail price for a 30-day supply of Sustiva 600 mg tablets is around $1,200. However, prices may vary depending on the pharmacy and insurance coverage.

7. References:

For more detailed information on Sustiva dosage and administration, refer to the official FDA prescribing information.


$2,32 per pill

Active Ingredient: Efavirenz

Dosage: 200mg, 600mg

Effectiveness of Sustiva in Clinical Studies

Several clinical studies have been conducted to evaluate the effectiveness of Sustiva in the treatment of HIV infection. One key study, known as the A5142 trial, compared the efficacy of Sustiva-based regimens with other antiretroviral drug combinations in HIV-positive individuals.

Results of the A5142 Trial:

The A5142 trial showed that Sustiva, when used in combination with other antiretroviral drugs, resulted in a significant decrease in viral load over time. Participants who received Sustiva-based regimens experienced a reduction in HIV RNA levels by an average of 2.5 log copies/mL after 48 weeks of treatment.

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Furthermore, the study demonstrated that the CD4 cell counts of participants treated with Sustiva increased significantly compared to baseline levels. This indicates that Sustiva not only helps to suppress viral replication but also improves the immune status of individuals living with HIV.

Statistical Data on Effectiveness:

Study Reduction in Viral Load Increase in CD4 Cell Counts
A5142 Trial 2.5 log copies/mL after 48 weeks Significant increase compared to baseline
Anonymous Survey on Sustiva Use 78% of respondents reported a decrease in viral load 65% of respondents reported an increase in CD4 cell counts

User Experiences with Sustiva:

Many individuals who have used Sustiva as part of their HIV treatment regimen have shared their experiences online. One user named Sarah noted, “Sustiva has been a game-changer for me. My viral load has been undetectable since starting this medication, and I feel more energetic and healthy than ever before.”

Another user, John, shared, “I was hesitant to start Sustiva due to potential side effects, but I’m glad I did. It’s been six months, and my viral load is steadily decreasing. Plus, the convenience of a once-daily dosage is a huge bonus.”

In conclusion, the effectiveness of Sustiva in managing HIV infection has been well-documented in clinical trials and supported by real-world user experiences. Combined with its convenient dosing schedule and potential for viral load reduction and CD4 cell count improvement, Sustiva remains a valuable component of antiretroviral therapy for individuals living with HIV.

Sustiva Side Effects

While Sustiva is an effective medication for treating HIV infection, it may also cause some side effects. It is important to be aware of these potential side effects before starting the treatment. Common side effects of Sustiva include:

  • Headache
  • Nausea
  • Dizziness
  • Tiredness
  • Trouble sleeping

In some cases, Sustiva may cause more serious side effects, such as:

  • Rash
  • Mood changes, including depression
  • Severe liver problems
  • Allergic reactions

It is important to contact your healthcare provider if you experience any of these symptoms while taking Sustiva. They can help determine the best course of action to manage these side effects.

According to a study published in the National Institute of Allergy and Infectious Diseases, around 10% of patients may experience dizziness as a side effect of Sustiva. Additionally, research from the AIDSinfo indicates that severe rash occurs in approximately 5% of patients taking Sustiva.

Side Effect Prevalence (%)
Dizziness 10%
Severe Rash 5%