Danatrol 100 mg capsules

Package leaflet: Information for the user

Introduction

Package leaflet: information for the user

Danatrol 100 mg capsules

danazol

Read the entire leaflet carefully before you start taking this medicine, as it contains important information for you.

• Keep this leaflet as you may need to read it again.
• If you have any questions, ask your doctor or pharmacist.
• This medicine has been prescribed for you personally. Do not give it to others, even if they have the same symptoms as you, as it may harm them.
• If you experience any adverse effects, consult your doctor or pharmacist, even if they are effects not listed in this leaflet. See section 4.

Contents of the leaflet:

1. What Danatrol is and what it is used for
2. What you need to know before taking Danatrol
3. How to take Danatrol
4. Possible adverse effects
5. How to store Danatrol
6. Contents of the pack and other information

1. What Danatrol is and what it is used for

Danatrol is a hormonal medicine effective in the treatment of endometriosis (growth of the mucous membrane lining the inside of the uterus occurring outside the uterus).

It is also effective in preventing attacks in patients with hereditary angioedema (fluid accumulation under the skin).

2. What you need to know before taking Danatrol

Do not take Danatrol

• if you are allergic to danazol or to any of the other ingredients of this medicine (listed in section 6),
• if you are pregnant or breastfeeding,
• if you have porphyria (a disorder related to red blood cells),
• if you have severe disorders affecting the kidneys (renal), liver (hepatic), or heart (cardiac),
• if you have or have had thrombosis (formation of a blood clot within the circulatory system) or a thromboembolic disease,
• if you have any type of tumor whose growth is influenced by hormonal agents,
• if you have abnormal vaginal bleeding that has not been diagnosed,
• you must not take Danatrol at the same time as simvastatin.

Warnings and precautions

Talk to your doctor or pharmacist before starting to take Danatrol.

Warnings

Inform your doctor if you have or have had previous reactions to medicines, especially steroid medications.

Your doctor may recommend periodic blood tests to monitor liver function and blood cell levels.

Treatment should be discontinued if clinically significant adverse effects occur, particularly if there is any evidence of:

• masculinization (virilization),
• optic nerve inflammation (papilledema), headache, visual disturbances, or other signs or symptoms of increased intracranial pressure,
• yellowing of the skin or any other indication of liver dysfunction,
• vascular problems such as thrombosis or thromboembolism.

It should be noted that:

• due to danazol's relationship with steroids, liver disorders may occur with prolonged or repeated treatment,
• the use of danazol increases the risk of ovarian cancer in patients treated for endometriosis,
• if a treatment cycle with Danatrol needs to be repeated, your doctor must carry out strict monitoring.

Precautions

Due to its adverse effects and interactions with other medicines, inform your doctor if you have any of the following conditions:

• liver or kidney disease,
• cardiovascular problems,
• high blood pressure,
• any condition that could be worsened by fluid retention,
• diabetes,
• lipoprotein disorders (abnormal levels of lipoproteins in the blood),
• epilepsy,
• a blood disorder known as polycythemia (increased proportion of red blood cells per blood volume),
• history of marked or persistent androgenic reaction to previous treatment with gonadal steroids,
• migraine.

Before starting treatment, the presence of a hormone-dependent carcinoma should be ruled out, as well as the persistence or increase of breast nodules during treatment.

Treatment should be started during menstruation. Women of childbearing age must use an effective non-hormonal contraceptive method during treatment with Danatrol.

This medicine may increase skin sensitivity to sunlight. Avoid exposure to sunlight (even on cloudy days) and to ultraviolet (UVA) lamps while using this medicine.

Use in athletes

This medicine contains danazol, which may result in a positive test in doping controls.

Taking Danatrol with other medicines

Tell your doctor or pharmacist if you are taking, have recently taken, or might need to take any other medicines. Your doctor will decide which medication should be discontinued or whether the dose needs to be adjusted.

In particular, inform your doctor if you are currently taking:

• anticonvulsants (for the treatment of seizures),
• antidiabetics (for the treatment of diabetes),
• oral anticoagulants such as warfarin (medicines that help prevent blood clots),
• antihypertensives (medicines that lower blood pressure),
• cyclosporine or tacrolimus (used in transplant patients),
• steroids (medicines related to male sex hormones),
• alfacalcidol (a medicine used to treat hypocalcemia),
• statins (medicines to reduce cholesterol). You must not take Danatrol at the same time as simvastatin (see section “Do not take Danatrol”).

Due to possible interactions with laboratory tests for the measurement of testosterone or plasma proteins, inform your doctor that you are taking Danatrol.

Pregnancy and breastfeeding

If you are pregnant or breastfeeding, think you may be pregnant, or plan to become pregnant, consult your doctor or pharmacist before taking this medicine.

Pregnancy:

Since the use of danazol is contraindicated during pregnancy due to the risk of fetal virilization (masculinization) of a female fetus, appropriate measures must be taken in women of childbearing age to exclude the possibility of pregnancy during treatment.

Danatrol must not be taken during pregnancy. Inform your doctor if you are pregnant or planning to become pregnant before starting treatment with this medicine. If you suspect you have become pregnant while taking Danatrol, you must stop treatment immediately and consult your doctor.

Because it is important to ensure you are not pregnant, treatment with Danatrol should be started during menstruation, and an effective non-hormonal contraceptive method must be used during treatment with this medicine.

Breastfeeding:

Danazol may theoretically produce androgenic (masculinizing) effects in infants; therefore, either treatment with danazol or breastfeeding should be discontinued. If you are breastfeeding, you must not take this medicine.

Driving and using machines

The effect of Danatrol on the ability to drive and use machines is unlikely.

Danatrol contains lactose

This medicine contains lactose. If your doctor has informed you that you have an intolerance to certain sugars, consult with him before taking this medicine.

3. How to take Danatrol

Follow exactly the instructions for administration of this medicine provided by your doctor. If in doubt, consult your doctor or pharmacist again.

Danatrol must be administered orally.

If you are a woman of childbearing age, you should start treatment during menstruation to rule out the possibility of being pregnant at the start of treatment. You must use a non-hormonal contraceptive method during treatment with Danatrol.

The usual dose is 200 to 800 mg of danazol per day (without exceeding 800 mg per day), divided into 2 to 4 doses taken orally.

The dose may be higher or lower than indicated, depending on the response achieved.

The lowest effective dose should always be used.

This medicine should not be taken by children or elderly patients.

If you take more Danatrol than you should

As with other medicines, an overdose may be dangerous.

In case of overdose or accidental ingestion, contact your doctor or pharmacist immediately or call the Toxicology Information Service at telephone number 91 562 04 20, indicating the medicine and the amount ingested. It is recommended to bring the medicine packaging and leaflet to the healthcare professional.

You should remain under observation in case delayed reactions occur.

If you forget to take Danatrol

It is advisable to take the missed dose as soon as possible. Do not take the next dose until at least 4 hours have passed, then continue with the dosing schedule prescribed by your doctor.

Do not take a double dose to make up for forgotten doses.

4. Possible adverse effects

Like all medicines, Danatrol may cause adverse effects, although not everyone experiences them.

Adverse reactions are grouped according to organ systems and by frequency:

Very common: may affect more than 1 in 10 people
Common: may affect up to 1 in 10 people
Uncommon: may affect up to 1 in 100 people
Rare: may affect up to 1 in 1,000 people
Very rare: may affect up to 1 in 10,000 people
Frequency not known: cannot be estimated from available data.

Blood and lymphatic system disorders

• Rare: increased proportion of red blood cells per blood volume (polycythaemia), decreased number of white blood cells (leucopenia), and decreased number of platelets (thrombocytopenia).
• Very rare: increased number of eosinophils in blood (eosinophilia), spleen disease (splenic peliosis).

Metabolism and nutrition disorders

• Insulin resistance, abnormal glucose tolerance.
• Common: increased appetite.
• Rare: fluid retention.

Psychiatric disorders

• Common: mood disturbances, anxiety, depressive state, nervousness, changes in sexual desire.

Nervous system disorders

• Common: headache, muscle tremors, muscle contractions.
• Rare: dizziness, benign intracranial hypertension.
• Very rare: worsening of epilepsy, onset of migraine, pain in wrists and fingers (carpal tunnel syndrome).

Eye disorders

• Rare: visual disturbances such as blurred vision, difficulty focusing, discomfort when wearing contact lenses, and refractive changes requiring correction.

Ear and labyrinth disorders

• Rare: vertigo.

Cardiac disorders

• Rare: palpitations and tachycardia. Cases of myocardial infarction have also been reported.

Vascular disorders

• Common: hot flushes.
• Rare: hypertension. Effects caused by the presence of a blood clot in a blood vessel have also been observed (including sagittal sinus thrombosis, cerebrovascular thrombosis, and arterial thrombosis).

Respiratory, thoracic and mediastinal disorders

• Common: voice changes.
• Very rare: lung thickening and scarring (interstitial pneumonitis), chest pain.

Gastrointestinal disorders

• Common: nausea.
• Rare: inflammation of the pancreas (pancreatitis).
• Very rare: upper abdominal pain.

Hepatobiliary disorders

• Rare: yellowing of the skin (cholestatic jaundice), benign liver tumour (benign hepatic adenoma).
• Very rare: in cases of long-term use, disorders of the liver have been observed (malignant liver tumour and hepatic peliosis).
• Frequency not known: liver cell damage, deterioration of liver function, yellowing of the skin and/or mucous membranes due to liver cell injury (hepatocellular jaundice), benign liver tumour (focal nodular hyperplasia of the liver).

Skin and subcutaneous tissue disorders

• Common: skin rashes, which may be accompanied by fever. Facial swelling (facial oedema) and increased skin sensitivity to sunlight (photosensitivity) have also been reported. Acne, oily skin (seborrhoea), significant increase in facial or body hair (hirsutism), hair loss.
• Uncommon: red, raised welts appearing on the skin surface (urticaria).
• Very rare: inflammatory skin disease (inflammatory erythema nodosum), skin pigmentation disorders, exfoliative dermatitis, and skin allergic reaction (erythema multiforme).

Musculoskeletal and connective tissue disorders

• Common: back pain, muscle cramps, sometimes accompanied by increased levels of creatine phosphokinase, limb pain, joint pain and inflammation.

Renal and urinary disorders

• Very rare: presence of blood in urine with prolonged use in cases of hereditary angioedema.

Reproductive system and breast disorders

• Common: menstrual cycle disturbances, bleeding between periods, absence of menstruation, vaginal dryness, vaginal irritation.
• Uncommon: decrease in breast size.
• Rare: enlargement of the clitoris.
• Very rare: decreased sperm production.

General disorders

• Rare: fatigue.

Investigations

• Increased plasma glucagon levels, increased LDL cholesterol, decreased HDL cholesterol, and decreased levels of apolipoproteins AI and AII.

Other metabolic changes include induction of ALA synthetase (aminolevulinic acid synthetase), decreased thyroid-binding globulin and T4, with increased T3 uptake, but without alteration of thyroid-stimulating hormone or free thyroxine index.

• Common: weight gain.
• Uncommon: isolated increases in liver enzyme levels (transaminases) in blood.
• Rare: increased number of red blood cells and platelets.

Reporting of adverse effects

If you experience any type of adverse effect, consult your doctor or pharmacist, even if it is a possible adverse effect not listed in this leaflet. You may also report them directly through the Spanish Pharmacovigilance System for Human Medicines: https://www.notificaram.es. By reporting adverse effects, you can help provide more information on the safety of this medicine.

5. Storage of Danatrol

Keep out of sight and reach of children.

Store below 30°C.

Do not use this medicine after the expiry date stated on the packaging after EXP. The expiry date is the last day of the month indicated.

Medicines should not be disposed of via wastewater drains or in household waste. Dispose of unused medicines and their containers at a SIGRE collection point at your pharmacy. If in doubt, ask your pharmacist how to properly dispose of unused medicines and their packaging. This will help protect the environment.

6. Contents of the pack and other information

Composition of Danatrol

• The active substance is danazol. Each capsule contains 100 mg of danazol.
  • The other components are lactose, corn starch, talc and magnesium stearate.

Appearance of the product and contents of the pack

Capsules with an opaque white body and an opaque grey cap, marked with the inscription D100.

Each pack contains 60 capsules in PVC/aluminum blisters.

Marketing Authorisation Holder and Manufacturer

Marketing Authorisation Holder

Laboratorios Fidia Farmacéutica S.L.U.

Parque Empresarial de la Moraleja - Torona Building

Avenida de Europa, 24 - Building A - 1 B

28108 Alcobendas - Madrid - Spain

Manufacturer

Zentiva, k.s.

U Kabelovny 130

102 37 Prague 10

Czech Republic

Date of the most recent revision of this leaflet: June 2017

Detailed and up-to-date information on this medicinal product is available on the website of the Spanish Agency for Medicines and Health Products (AEMPS) http://www.aemps.gob.es/