TOLL-FREE PHONE: 1-866-539-5330
TOLL-FREE FAX: 1-866-539-5331

Buy Prezista or Generic Darunavir Online

A prescription is required for this item.
Dosage Pack Size & Price Qty
BRAND LISTING - Prezista (Darunavir)
Dosage Pack Size & Price Qty
Product description written by Dr. Ami Patel, PharmD (Mar 12, 2020)

What is Prezista?

Prezista (generic name darunavir) is a prescription medicine that is only used in combination with another medicine, such as Norvir (generic name ritonavir) to treat the HIV-1 (human immunodeficiency virus- type 1) virus in adults and children over age 3.

HIV-1 is the virus that causes AIDS (acquired immune deficiency syndrome). By taking Prezista regularly, you can reduce the amount of HIV-1 in your blood to slow down the process leading to AIDS. Prezista can reduce the amount of HIV-1 and also increase the number of 'helper' white blood cells which fight infections. By lowering the amount of HIV and increasing the number of white blood cells, Prezista can help you live a longer and healthier life.

What is Prezista used for?

Prezista is used to treat HIV-1 in adults and children over 3 years old (who weigh more than 22 pounds).

Prezista is not for anyone who is allergic to darunavir, or any medicine that contains darunavir. To avoid serious Prezista side effects, do not use Prezista with any of the following medicines:

  • Alfuzosin for prostate problems
  • Cisapride for constipation
  • Colchicine (if you have liver or kidney trouble) for gout
  • Dronedarone for an irregular heartbeat
  • Elbasvir and grazoprevir for Hepatitis C
  • Ergot medicines for migraine headaches, such as dihydroergotamine, ergotamine, methylergonovine, among others
  • Ivarbradine for chest pain
  • Lomitapide for high cholesterol
  • Lovastatin or Simvastatin for high cholesterol
  • Lurasidone for schizophrenia
  • Triazolam or Midazolam tablets for sleep or anxiety
  • Naloxegol for constipation
  • Pimozide for Tourette's syndrome
  • Ranolazine for chest pain
  • Rifampin for tuberculosis (TB)
  • Sildenafil for high blood pressure due to pulmonary arterial hypertension (PAH)
  • St John's wort (over-the-counter supplement) for mood, anxiety or depression

If you take any other prescriptions, vitamins, over-the counter medicines, or herbal supplements let your doctor know before starting Prezista.

Prezista is not for people who are pregnant or planning to become pregnant. Do not use Prezista if you are breastfeeding or planning to breastfeed. Do not use Prezista if you currently have or have had liver problems. Prezista is not for people who are pregnant or planning to become pregnant. Do not use Prezista if you are breastfeeding or planning to breastfeed. Do not use Prezista if you currently have or have had liver problems.

Tell your doctor if you have any of the following before starting Prezista:

  • Allergy to sulfa medicine
  • Are diabetic or have high blood sugar
  • Have blood problems, like hemophilia
  • Currently have any other medical conditions

What are possible Prezista side effects?

The most common Prezista side effects include: diarrhea (loose stools), nausea (feeling sick to your stomach), stomach pain, vomiting (throwing up), and headache.

Another possible Prezista medication side effect is increased bleeding in people who have hemophilia. Call your doctor if you experience any new bleeding or bruising after starting Prezista.

A serious side effect of Prezista is increased blood sugar. Some people that take Prezista may develop diabetes. People who already have diabetes may find it harder to keep their blood sugar under control while taking Prezista. Call your doctor if you begin to get thirsty more often, or pee more frequently, as these can be the first signs of high blood sugar.

A possible Prezista side effect is a change in body fat. You may lose fat in your arms, legs, or face, whereas you may gain fat in your upper back and neck, breasts, or around the middle of your body. Some people notice a 'buffalo hump' deposit of fat in the upper back and neck.

Prezista is able to weaken the HIV virus well enough that your immune system may suddenly begin to fight other infections that were waiting in your body before the HIV infection. This is known as immune reconstitution syndrome. Contact your doctor if you suddenly start having new health problems after taking Prezista.

Call your doctor immediately if you experience a rash after taking Prezista. This could be a sign of a serious allergic reaction. Call your doctor if you get a rash, along with any of the following symptoms:

  • Feeling tired or achy

  • A high body temperature (fever)

  • Muscle or joint pain

  • Blisters, pimples or sores inside your mouth

  • Peeling or blistered skin

  • Red or swollen eyes

  • Liver problems (hepatitis)

  • Eosinophilia (too many white blood cells)

Another possible Prezista medication side effect includes serious liver problems where your liver stops working. This is called drug-induced hepatitis. If you have liver problems, you may feel sick to your stomach, or vomit. You may lose your appetite, or have stomach pain. Your stools can become light colored, and your urine can become dark, or brownish like tea. Your skin or eyes may appear yellowish (jaundice). Call your doctor immediately if you notice any of these problems.

What is the proper dosage of Prezista?

The dose of Prezista varies depending on which other medication is being used along with it. The dose also varies depending on if this is your first time taking HIV medications or if you have been treated with other medicine in the past. Adult patients, pregnant patients, and children all have varying doses based on weight, and past medical history. Generally speaking, Prezista may be taken once or twice daily with food exactly as directed by your doctor. Since the dose of Prezista varies, the Prezista cost will also change based on how it is prescribed. Patients can save money by buying Prezista online from a reputable mail order pharmacy such as

Drugs Similar to Prezista

  • Atazanavir/Ritonavir (Atazanavir/Ritonavir)
  • Atripla (Efavirenz/Emtricitabine/Tenofovir)
  • Combivir (Lamivudine/Zidovudine)
  • Complera (Emtricitabine/Rilpivirine/Tenofovir Disoproxil)
  • Descovy (Emtricitabine/Tenofovir Alafenamide)
  • Duovir-N (Lamivudine/Zidovudine/Nevirapine)
  • Emtri (Lamivudine/Stavudine/Nevirapine)
  • Emtriva (Emtricitabine)
  • Epzicom (Abacavir/Lamivudine)
  • Genvoya (Cobicistat/Elvitegravir/Emtricitabine/Tenofovir alafenamide)
  • Heptovir (called Epivir in USA) (Lamivudine)
  • Heptovir Oral Solution (called Epivir in USA) (Lamivudine)
  • Invirase (Saquinavir Mesylate)
  • Isentress (Raltegravir)
  • Kaletra (Ritonavir/Lopinavir)
  • Kaletra Oral Solution (Ritonavir/Lopinavir)
  • Lamivir-S (Lamivudine/Stavudine)
  • Lamivudine/Tenofovir (Lamivudine/Tenofovir)
  • Lexiva (called Telzir in Canada) (Fosamprenavir Calcium)
  • Norvir (Ritonavir)
  • Odefsey (Emtricitabine/Rilpivirine/Tenofovir Alafenamide)
  • Prezcobix (Darunavir/Cobicistat)
  • Retrovir (AZT (Zidovudine)
  • Reyataz (Atazanavir)
  • Selzentry (Maraviroc)
  • Stribild (Elvitegravir/Cobicistat/Emtricitabine/Tenofovir Disoproxil Fumarate)
  • Sustiva (Efavirenz)
  • Tenofovir/Lamivudine/Efavirenz (Tenofovir/Lamivudine/Efavirenz)
  • Tivicay (Dolutegravir)
  • Trizivir (Abacavir/Lamivudine/Zidovudine)
  • Truvada (Emtricitabine/Tenofovir Disoproxil Fumarate)
  • Videx EC (Didanosine)
  • Viracept (Nelfinavir Mesylate)
  • Viramune (Nevirapine)
  • Viread (Tenofovir)
  • Zerit (Stavudine - D4T)
  • Ziagen (Abacavir Sulfate)
The information provided on the website is intended to facilitate awareness about healthcare products and medical conditions generally but it is not a substitute for professional medical attention or advice. You should always speak with a qualified healthcare practitioner before taking any prescription or non-prescription drug.