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Invirase, |Invirase

Invirase

Generic Name: saquinavir (sa KWIN a veer)
Brand Names: Invirase

What is saquinavir?

Saquinavir is an antiviral medication. It is in a group of drugs called protease (PRO-tee-ayz) inhibitors. Saquinavir prevents human immunodeficiency virus (HIV) cells from multiplying in your body.

Saquinavir is used to treat HIV, which causes acquired immunodeficiency syndrome (AIDS). Saquinavir is not a cure for HIV or AIDS.

Saquinavir may also be used for purposes other than those listed in this medication guide.

What is the most important information I should know about saquinavir?

There are many other medicines that can interact with saquinavir. Tell your doctor about all the prescription and over-the-counter medications you use. This includes vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start using a new medication without telling your doctor. Keep a list with you of all the medicines you use and show this list to any doctor or other healthcare provider who treats you.

HIV/AIDS is usually treated with a combination of different drugs. To best treat your condition, use all of your medications as directed by your doctor. Do not change your doses or medication schedule without advice from your doctor. Every person with HIV or AIDS should remain under the care of a doctor.

Taking saquinavir will not prevent you from passing HIV to other people through unprotected sex or sharing of needles. Talk with your doctor about safe methods of preventing HIV transmission during sex, such as using a condom and spermicide. Sharing drug or medicine needles is never safe, even for a healthy person.

What should I discuss with my healthcare provider before taking saquinavir?

Do not take this medication if you are allergic to saquinavir.

• amiodarone (Cordarone, Pacerone);

• astemizole (Hismanal);

• bepridil (Vascor);

• cisapride (Propulsid);

• flecainide (Tambocor);

• midazolam (Versed) or triazolam (Halcion);

• pimozide (Orap);

• propafenone (Rythmol);

• quinidine (Cardioquin, Quinidex, Quinaglute);

• terfenadine (Seldane); or

• or ergot medicines such as ergotamine (Ergomar, Cafergot), dihydroergotamine (D.H.E. 45, Migranal Nasal Spray), ergonovine (Ergotrate), or methylergonovine (Methergine).

Before taking saquinavir, tell your doctor if you are allergic to any drugs, or if you have:

• liver disease;

• diabetes;

• a bleeding disorder (hemophilia); or

• high cholesterol or triglycerides.

If you have any of these conditions, you may not be able to use saquinavir, or you may need a dosage adjustment or special tests during treatment.

Your name may need to be listed on an antiviral pregnancy registry when you start using this medication.

How should I take saquinavir?

Take saquinavir exactly as it was prescribed for you. Do not take the medication in larger amounts, or take it for longer than recommended by your doctor. Follow the directions on your prescription label.

This medication comes with patient instructions for safe and effective use. Follow these directions carefully. Ask your doctor or pharmacist if you have any questions.

Saquinavir should be taken together with another medication called ritonavir (Norvir).

It is important to use saquinavir regularly to get the most benefit. Get your prescription refilled before you run out of medicine completely.

HIV/AIDS is usually treated with a combination of different drugs. To best treat your condition, use all of your medications as directed by your doctor. Be sure to read the medication guide or patient instructions provided with each of your medications. Do not change your doses or medication schedule without advice from your doctor. Every person with HIV or AIDS should remain under the care of a doctor.

To be sure saquinavir is helping your condition, your blood will need to be tested on a regular basis. Your liver function may also need to be tested. Do not miss any scheduled visits to your doctor.

What happens if I miss a dose?

Take the missed dose as soon as you remember. If it is almost time for your next dose, skip the missed dose and take the medicine at the next regularly scheduled time. Do not take extra medicine to make up the missed dose.

What happens if I overdose?

What should I avoid while taking saquinavir?

If you also take didanosine, take it 2 hour before or after you take saquinavir.

Taking saquinavir will not prevent you from passing HIV to other people through unprotected sex or sharing of needles. Talk with your doctor about safe methods of preventing HIV transmission during sex, such as using a condom and spermicide. Sharing drug or medicine needles is never safe, even for a healthy person.

Saquinavir side effects

• fever, sore throat, and headache with a severe blistering, peeling, and red skin rash;

• increased urination or extreme thirst;

• easy bruising or bleeding;

• signs of a new infection, such as fever or chills, cough, or flu symptoms; or

• nausea, stomach pain, low fever, loss of appetite, dark urine, clay-colored stools, jaundice (yellowing of the skin or eyes).

Keep taking the medication and talk with your doctor if you have any of these less serious side effects:

• mild nausea, vomiting, diarrhea, stomach pain;

• numbness or tingling, especially around your mouth;

• muscle pain;

• headache, mood changes; or

• changes in the shape or location of body fat (especially in your arms, legs, face, neck, breasts, and waist).

Side effects other than those listed here may also occur. Talk to your doctor about any side effect that seems unusual or that is especially bothersome.

What other drugs will affect saquinavir?

• fluticasone (Advair, Flonase, Flovent);

• garlic or St. John"s wort;

• antibiotics such as clarithromycin (Biaxin), itraconazole (Sporanox), ketoconazole (Nizoral), or rifampin (Rifadin, Rimactane, Rifater);

• antidepressants such as amitriptyline (Elavil, Etrafon), imipramine (Janimine, Tofranil), trazodone (Desyrel), and others;

• a blood thinner such as warfarin (Coumadin);

• a calcium channel blocker such as amlodipine (Caduet, Lotrel, Norvasc), diltiazem (Tiazac, Cartia, Dilacor), felodipine (Plendil), nifedipine (Procardia, Adalat), or verapamil (Calan, Covera, Isoptin, Verelan);

• cholesterol-lowering medicine such as atorvastatin (Lipitor), lovastatin (Mevacor, Altocor), or simvastatin (Zocor);

• drugs that weaken the immune system, such as cyclosporine (Gengraf, Neoral, Sandimmune), sirolimus (Rapamune), or tacrolimus (Prograf);

• other HIV /AIDS medicine such as darunavir (Prezista), lopinavir/ritonavir (Kaletra), or tipranavir (Aptivus);

• insulin or diabetes medication you take by mouth;

• medicines to treat erectile dysfunction, such as sildenafil (Viagra), tadalafil (Cialis), or vardenafil (Levitra); or

• seizure medications such as carbamazepine (Carbatrol, Tegretol), phenobarbital (Luminal, Solfoton), or phenytoin (Dilantin).

If you are using any of these drugs, you may not be able to take saquinavir, or you may need dosage adjustments or special tests during treatment.

There are many other medicines that can interact with saquinavir. Tell your doctor about all the prescription and over-the-counter medications you use. This includes vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start using a new medication without telling your doctor. Keep a list with you of all the medicines you use and show this list to any doctor or other healthcare provider who treats you.

Where can I get more information?

• Your pharmacist has information about saquinavir written for health professionals that you may read.

What does my medication look like?

Saquinavir is available with a prescription under the brand names Invirase. Other brand or generic formulations may also be available. Ask your pharmacist any questions you have about this medication, especially if it is new to you.

• Invirase 200 mg--light-brown and green capsules

• Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.
• Every effort has been made to ensure that the information provided by Cerner Multum, Inc. ("Multum") is accurate, up-to-date, and complete, but no guarantee is made to that effect. Drug information contained herein may be time sensitive. Multum information has been compiled for use by healthcare practitioners and consumers in the United States and therefore Multum does not warrant that uses outside of the United States are appropriate, unless specifically indicated otherwise. Multum"s drug information does not endorse drugs, diagnose patients or recommend therapy. Multum"s drug information is an informational resource designed to assist licensed healthcare practitioners in caring for their patients and/or to serve consumers viewing this service as a supplement to, and not a substitute for, the expertise, skill, knowledge and judgment of healthcare practitioners. The absence of a warning for a given drug or drug combination in no way should be construed to indicate that the drug or drug combination is safe, effective or appropriate for any given patient. Multum does not assume any responsibility for any aspect of healthcare administered with the aid of information Multum provides. The information contained herein is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. If you have questions about the drugs you are taking, check with your doctor, nurse or pharmacist.