Anabrez

Anabrez tablets containing active substance called as Anastrozole which is an inhibitor of Aromatase enzyme. It is active against Aromatase enzyme which is involved in estrogen synthesis. Anabrez is assort as third generation classification of Aromatase Inhibitor, includes in breast cancer treatment. In postmenopausal women, Anabrez is used to prohibit the Aromatase enzyme which is necessary to stop the estrogen production and involved in estrogen receptor positive breast cancer therapy. Anabrez is pharmacologically classified as; Aromatase inhibitor, Non-steroidal inhibitor of estrogen synthesis, Hormone receptor positive breast cancer drug

Anastrozole

Anabrez

1mg

Sun pharmaceuticals





Anabrez indicated for

Anabrez used as promoting treatment:
Anabrez is mainly indicated in postmenopausal women who are suffered with hormone receptor positive early breast cancer.

First line choice:
Anabrez tablets are mediated as first line drug for the treatment involved in post-menopausal women with hormone receptor positive or hormone receptor unrecognized locally advanced breast cancer.

Second line choice:
Anabrez tablets are used as second drug choice in the post-menopausal women who are produce resistance in tamoxifen treatment. This may have indicated in patient with receptor negative disease.

Pharmacological action of Anabrez

The cancer cells growth in breast may induce and sustained by estrogen. An Aromatase enzyme which is involved in the aromatization of adrenal androgens (androstenedione & testosterone) which get converted into estrone and estradiol, which is the conclusion of estrogen biosynthesis. This enzyme is widely present in cells of ovary, liver, breast and also in malignant cells. By inhibiting this enzyme, abolition of estrogen biosynthesis occurs in peripheral tissues and also in cancer tissues. Reduction in circulating estradiol levels may leads to reduce the cancer cell growth.

Effect on estradiol:
The prescribed dose of 1mg of Anabrez which may leads to reduce the estradiol by relatively 70% within a period of 24 hours. The abolition of estradiol maintained after stopping the Anabrez therapy, for up to 6 days.

Effect on corticosteroids:
There is no variation occurs in cortisol & aldosterone secretion, no corticosteroid supplements is necessary.

Various endocrine effects:
No variation occurs in TSH; Anabrez only agitate the circulating levels of progesterone, androgens & estrogens.




PHARMACOKINETIC

Themaximum plasma concentration time occurs in a period of 2 hours. The absorption of Anabrez tablets after administration occurs very quickly .when Anabrez administered 30 minutes after food ingestion.The effect of concentration of Anabrez gets reduced by 16%, Tmax postponed from 2 to 5 hours

Only 40% of drug gets bound to the human plasma protein.

The metabolism of Anabrez arises by; Hydroxylation, Glucuronidation & N-Dealkylation These three metabolites are recovered in urine.

Nearly 85% of drug is eliminated through hepatic metabolism. Eliminated 10% in urine The terminal half-life period of Anabrez is 50 hours.





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Anabrez 1mg
Brand Anabrez
Ingredients Anastrozole
Strength 1mg
Manufactured Sun pharmaceuticals
Rating


Dosage regimens and administration of Anabrez

The prescribed dose of Anabrez is one tablet 1mg should be taken orally as a single dose. In metastatic breast cancer condition, the dose should be resumed until disease advancement. In ATAC ( Anabrez , tamoxifen, alone or in combination treatment), the dose of Anabrez should be followed for 5 years.

In specific populations

For pediatric
The Anabrez tablets are not allowed to use for pediatric patients, no drug safety is evaluated.

For geriatrics
Anabrez tablets should be administered with or without food. Dosage adjustment should not be suggested.

In renal & hepatic damaged patients
For mild & moderate renal impaired patients, dosage adjustment is not allowed. In severe condition, the usage of Anabrez should be in caution.

For mild or moderate hepatic impaired patients, dosage adjustment should not be suggested In severe condition, use with caution.

Over dosage

The maximum dose of Anabrez is 10mg should be given to post menopausal women with metastatic breast cancer. No special antidote is preferred, therapy should be symptomatic. Signs and symptoms associated to the over dosage of Anabrez should be monitored. Provide general supportive measures to the patients who are suffered with over dosage of Anabrez.

Common side effects

Pain, Arthralgia, Hypertension, Depression, Nausea, Vomiting, Rash, Osteoporosis, Fractures, Back pain, Insomnia, Headache, Bone pain, Hot flushes, Asthenia, Arthritis, Peripheral edema, Cough, Dyspnea, Pharyngitis, Lymphoedema If an adverse effect persists, discontinue the therapy.

For adjuvant therapy

Similar to that, some variations like; Vasodilatations, GI disorders, Hypercholestremia, Leucorrhea, UTI, Breast pain, Vulvovaginitis, Infection, Accidental injury, Flu like syndrome, Chest pain, Neoplasm, Cyst, Vaginal hemorrhage, Vaginitis, Ischemic cardiac disease, Venous thromboembolic events, Deep venous thromboembolic events, Ischemic Cerebrovascular event, Endometrial cancer

Ischemic cardiovascular events

During the Anabrez treatment, patients may affect with high incidence of ischemic cardiovascular events. This condition may occur in ATAC trials.

Bone effects

During Anabrez therapy, patient may suffer with diminishing the lumbar spine & total hip bone mineral density levels. This condition is occurring at high range in tamoxifen therapy, to reduce this adverse patient may frequently examined with bone mineral density.

Cholesterol

In Anabrez receiving patients have high chance in elevation of cholesterol.


Drug- drug interaction



  • Concurrent use of tamoxifen with Anabrez causes depletion in plasma concentration of Anabrez by 27%. This co administration did not affect the pharmacokinetic of tamoxifen ad its metabolites. Based on ATAC trials, this combination should be discontinued.
  • Anabrez with warfarin, causes increasing in bleeding effects. To avoid this problem patient must be examine with prothrombin time and INR value.
  • Co administration of Anabrez with cytochrome 450 enzymes, causes inhibition of CYP450
  • Anabrez tablets should not be used in combination with drugs containing estrogens, leads to reduce the pharmacological actions.


Contraindications

Anabrez tablets are contraindicated to pregnancy and premenopausal women, it may cause fetal harm.

Hypersensitivity reactions may occur; due to patients may contraindicate to the component present in the Anabrez tablets.




Pregnancy category: D Pregnancy category of Anabrez X, Anabrez tablets are not used in pregnancy and lactating period because it may cause fetal death.

Anabrez tablets stored between 20°C to 25°C (68°F to 77°F). Protect the container away from heat, moisture & light.

The missed dose should be skipped and follow the regular dosing schedule. If missed dose happens, must consult with practiced medical oncologist and follow the instructions.

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