Telzir
fosamprenavir
Fosamprenavir
Keep this leaflet. You may need to read it again.
If you have any further questions, ask your doctor or pharmacist.
This medicine has been prescribed for you only. Do not pass it on to others. It may harm them, even if their signs of illness are the same as yours.
Telzir is a type of medicine known as an anti-retroviral. It is taken with low doses of another medicine, ritonavir, which boosts the level of Telzir in the blood. Telzir belongs to a group of
anti-retroviral medicines called protease inhibitors. Protease is an enzyme produced by HIV which
enables the virus to multiply in white blood cells (CD4 cells) in your blood. By stopping protease from working, Telzir stops HIV multiplying and infecting more CD4 cells.
Telzir with low doses of ritonavir is used in combination with other anti-retroviral medicines (‘combination therapy’) to treat adults, adolescents and children aged over 6 years infected with HIV.
HIV can become resistant to anti-HIV medicines. To avoid this happening, and to stop your illness getting worse, it is very important that you keep taking all your medicines exactly as prescribed.
Telzir will not stop you passing on HIV. HIV infection is spread by sexual contact with someone who’s got the infection, or by transfer of infected blood (for example by sharing needles).
alfuzosin (used to treat a prostate problem)
astemizole or terfenadine (commonly used to treat allergy symptoms – these medicines may be
available without prescription)
pimozide (used to treat schizophrenia)
quetiapine (used to treat schizophrenia, bipolar disorder and major depressive disorder)
lurasidone (used to treat schizophrenia and bipolar disorder)
cisapride (used to relieve indigestion)
ergot derivatives (used to treat headaches)
rifampicin (used to treat tuberculosis)
amiodarone, quinidine, flecainide and propafenone (heart medicines)
bepridil (used to treat high blood pressure)
oral midazolam or oral triazolam (used to treat anxiety)
products containing St John’s wort (Hypericum perforatum)
lovastatin, simvastatin (used to lower cholesterol)
sildenafil if used to treat pulmonary arterial hypertension, (a condition affecting the blood
vessels to your lungs)
paritaprevir (used to treat hepatitis C virus infection)
→Tell your doctor if any of these applies to you. Take special care with Telzir
the amount of liver damage. You will be monitored while you are taking Telzir. If your liver disease gets worse, you may need to stop taking Telzir for a while, or permanently. People with hepatitis B or C taking combination therapy are at increased risk of getting severe liver problems.
If you are taking any other medicines. See section ‘Other medicines and Telzir’.
→Tell your doctor if any of these apply to you. You will need extra check-ups, including blood tests, while you’re taking your medication.
Your doctor will monitor your blood glucose levels before and during treatment with Telzir.
Some people taking medicines for HIV infection develop other conditions, which can be serious. These include:
• Flare up of old infections
• Change in your body shape
• Problems with your bones.
You need to know about important signs and symptoms to look out for while you’re taking Telzir. Please read the information on ‘Other side effects of combination therapy for HIV’ in section 4 of this leaflet. If you have any questions about this information or the advice given:
→Talk to your doctor.
You may get a skin rash. However you can still continue to take Telzir. It can be treated with antihistamines. Rarely, the skin rash can be severe and serious (Stevens Johnson syndrome). If this happens, Telzir must be stopped immediately and you must never take it again.
doses of ketoconazole and itraconazole greater than 200 mg per day (used to treat fungal infections)
doses of rifabutin greater than 150 mg every other day (an antibiotic)
lidocaine given by injection
halofantrine (used to treat malaria)
sildenafil, vardenafil or tadalafil (used to treat erectile dysfunction)
doses of atorvastatin greater than 20 mg per day (used to lower cholesterol)
fluticasone propionate and similar medicines used to treat asthma, unless considered essential. In this case close monitoring is required.
lopinavir/ritonavir combination (used to treat HIV infection)
raltegravir (used to treat HIV infection)
, , simeprevir, daclatasvir (used to treat hepatitis C virus infection)
maraviroc (used to treat HIV infection)
atorvastatin up to 20 mg per day (used to lower cholesterol)
carbamazepine, phenobarbital, phenytoin (used to treat epilepsy)
cyclosporin, rapamycin, tacrolimus (used to suppress the immune system)
dolutegravir (used to treat HIV infection)
desipramine, nortriptyline, paroxetine and similar medicines (used to treat depression)
warfarin and other medicines that stop blood clotting
injectable midazolam (used to treat anxiety)
clarithromycin, erythromycin (an antibiotic)
methadone (a heroin substitute)
dasatinib, nilotinib, ibrutinib, vinblastine and everolimus (used to treat several types of cancer)
etravirine (used to treat HIV infection)
Taking Telzir and ritonavir while taking the contraceptive pill may harm your liver and may stop the contraceptive from working properly.
→ Use an alternative non-hormonal type of contraception such as a condom.
No studies have been done on the use of Telzir/ritonavir with other hormonal therapies, such as hormone replacement therapy (HRT).
If you are pregnant, think you may be pregnant, or are planning to have a baby:
→Ask your doctor or pharmacist for advice before taking this medicine.
→Talk to your doctor immediately.
Telzir can make you feel dizzy and have other side effects that make you less alert.
→ Don’t drive or operate machinery unless you’re feeling well.
Telzir helps to control your condition, but it is not a cure for HIV infection. You need to keep taking it every day to stop your illness getting worse. You may still develop other infections and illnesses linked to HIV infection.
This medicine contains less than 1 mmol sodium (23 mg) per dosage unit, that is to say essentially ‘sodium-free’.
Always take this medicine exactly as your doctor or pharmacist has told you. It is very important that you take the full daily dose of Telzir and ritonavir as prescribed by your doctor. Do not take more than the recommended dose. Check with your doctor or pharmacist if you are not sure.
The recommended dose is one 700 mg Telzir tablet twice daily with 100 mg ritonavir twice daily.
Children can take the adult tablet dose of one 700 mg Telzir tablet twice daily with ritonavir 100 mg twice daily if they can swallow the tablets whole.
Use Telzir oral suspension.
If you have mild liver disease, the dose is one Telzir tablet (700 mg) twice daily with 100 mg ritonavir only once daily. If you have moderate or severe liver disease the dose of Telzir has to be lowered. This dose adjustment cannot be made with Telzir tablets. You must take Telzir oral suspension.
If you have taken more than the prescribed dose of Telzir:
→Contact your doctor or pharmacist immediately for advice.
If you forget to take a dose of Telzir, take it as soon as you remember and then continue your treatment as before. Don’t take a double dose to make up for a missed dose.
Take Telzir for as long as your doctor recommends. Don’t stop unless your doctor advises you to.
During HIV therapy there may be an increase in weight and in levels of blood lipids and glucose. This is partly linked to restored health and life style, and in the case of blood lipids sometimes to the HIV medicines themselves. Your doctor will test for these changes.
Like all medicines, this medicine can cause side effects, but not everyone gets them. When treating HIV, it can be hard to tell whether side effects are caused by Telzir, by other medicines taken at the same time or by the HIV disease itself. For this reason, it is very important to talk to your doctor about any changes in your health.
These may affect more than 1 in 10 people:
Diarrhoea
Increase in cholesterol (a type of blood fat).
These may affect up to 1 in 10 people:
Increases in triglycerides (a type of blood fat).
Feeling sick or being sick (nausea or vomiting), pain in the stomach, loose stools
Skin rashes (red, raised or itchy) – if the skin rash is severe, you may have to stop taking this medicine
Headache, feeling dizzy
Feeling tired
Increases in enzymes produced by the liver called transaminases, increases of an enzyme produced by the pancreas called lipase.
Tingling or numbness around the lips and mouth.
These may affect up to 1 in 100 people:
Swelling of the face, lips and tongue (angioedema).
These may affect up to 1 in 1000 people:
A severe or life-threatening skin reaction (Stevens Johnson syndrome).
There have been reports of muscle pain, tenderness or weakness, particularly with antiretroviral therapy including protease inhibitors and nucleoside analogues. On rare occasions, these muscle disorders have been serious (rhabdomyolysis). If you notice any muscle problems:
→Tell your doctor.
In patients with haemophilia type A and B, there have been reports of increased bleeding while taking protease inhibitors.
If this happens to you:
→Talk to your doctor immediately.
→Talk to your doctor or pharmacist. This includes any possible side effects not listed in this leaflet.
People with advanced HIV infection (AIDS) have weak immune systems and are more likely to
develop serious infections (opportunistic infections). When these people start treatment, they may find that old, hidden infections flare up, causing signs and symptoms of inflammation. These symptoms are probably caused by the body’s immune system becoming stronger, so that the body starts to fight these infections.
In addition to the opportunistic infections, autoimmune disorders (a condition that occurs when the immune system attacks healthy body tissue) may also occur after you start taking medicines for the treatment of your HIV infection. Autoimmune disorders may occur many months after the start of treatment. If you notice any symptoms of infection or other symptoms such as muscle weakness, weakness beginning in the hands and feet and moving up towards the trunk of the body, palpitations, tremor or hyperactivity, please inform your doctor immediately to seek necessary treatment.
→Tell your doctor immediately. Don’t take other medicines for the infection without your doctor’s advice.
Some people taking combination therapy for HIV develop a condition called osteonecrosis. With this condition, parts of the bone tissue die because of reduced blood supply to the bone.
People may be more likely to get this condition:
if they have been taking combination therapy for a long time
if they are also taking anti-inflammatory medicines called corticosteroids
if they drink alcohol
if their immune systems are very weak
if they are overweight.
If you notice any of these symptoms:
→Tell your doctor.
If you get any side effects, talk to your doctor or pharmacist. This includes any possible side effects not listed in this leaflet. You can also report side effects directly via the national reporting system listed in Appendix V. By reporting side effects you can help provide more information on the safety of this medicine.
Keep this medicine out of the sight and reach of children.
Do not use this medicine after the expiry date which is stated on the carton and the bottle. Telzir does not require any special storage conditions.
Do not throw away any medicines via wastewater or household waste. Ask your pharmacist how to throw away medicines you no longer use. These measures will help to protect the environment.
The other ingredients are: microcrystalline cellulose, croscarmellose sodium, povidone K30, magnesium stearate, colloidal anhydrous silica, hypromellose, titanium dioxide (E171), glycerol triacetate, iron oxide red (E172).
Telzir is supplied in plastic bottles containing 60 film-coated tablets. The tablets are capsule shaped, biconvex, pink coloured and marked with ‘GXLL7’ on one side.
Telzir is also available as an oral suspension for those patients unable to swallow the tablets.
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