Syntest Ds

Syntest Ds Uses, Dosage, Side Effects, Food Interaction and all others data.

Esterified estrogens contain a mixture of estrogenic substances; the principle component is estrone. Preparations contain 75% to 85% sodium estrone sulfate and 6% to 15% sodium equilin sulfate such that the total is not <90%. Esterified estrogens are a man-made mixture of estrogens that are used to treat symptoms of menopause such as hot flashes, vaginal dryness, vaginal burning or irritation, or other hormonal changes in the vagina. It is being also for the prevention and treatment of osteoporosis.

Estrogens are responsible for the development and maintenance of the female reproductive system and secondary sexual characteristics. Estradiol is the principle intracellular human estrogen and is more potent than estrone and estriol at the receptor level; it is the primary estrogen secreted prior to menopause.

A synthetic anabolic steroid used for treating men with testosterone deficiency or similar androgen replacement therapies. Also, has antineoplastic properties and so has been used secondarily in women with advanced breast cancer. Methyltestosterone is a schedule III drug in the US.

Testosterone is a steroid hormone from the androgen group. Testosterone is primarily secreted from the testes of males. In females, it is produced in the ovaries, adrenal glands and by conversion of adrostenedione in the periphery. It is the principal male sex hormone and an anabolic steroid. In both males and females, it plays key roles in health and well-being. Examples include enhanced libido, energy, immune function, and protection against osteoporosis. On average, the adult male body produces about twenty times the amount of testosterone than an adult female's body does.

Syntest Ds
Uses
Dosage
Side Effect
Precautions
Interactions
Uses during Pregnancy
Uses during Breastfeeding
Accute Overdose
Food Interaction
Half Life
Volume of Distribution
Clearance
Interaction With other Medicine
Contradiction
Storage

Trade Name	Syntest Ds
Generic	Esterified estrogens + methyltestosterone
Weight	0.625mg + 1.25mg, 1.25mg + 2.5mg
Type	Oral tablet
Therapeutic Class
Manufacturer
Available Country	United States
Last Updated:	September 19, 2023 at 7:00 am

Uses

Esterified estrogens is a female hormone used to treat conditions related to estrogen deficiency and moderate to severe vasomotor menopausal symptoms in women.

Esterified estrogens are indicated to replace estrogen in women with ovarian failure or other conditions that cause a lack of natural estrogen in the body. It is also indicated for the treatment of symptoms of breast cancer in both men and women. In men it can be used for the treatment of advanced prostate cancer. It is also indicated for the treatment of menopausal symptoms.

Methyltestosterone is a synthetic anabolic steroid used for the replacement therapy in conditions associated with testosterone deficiencies in males, such as hypogonadism, and treatment of advancing inoperable metastatic breast cancer in females.

Methyltestosterone is an anabolic steroid hormone used to treat men with a testosterone deficiency. It is also used in women to treat breast cancer, breast pain, swelling due to pregnancy, and with the addition of estrogen it can treat symptoms of menopause.

Syntest Ds is also used to associated treatment for these conditions: Advanced Prostate Carcinoma, Hypogonadism, Metastatic Breast Cancer, Premature Ovarian Failure (POF), Moderate Menopausal Vasomotor Symptoms, Moderate Vulvovaginal atrophy, Severe Vasomotor Symptoms Associated With Menopause, Severe menopausal vulvovaginal atrophyHypergonadotropic Hypogonadism, Idiopathic Hypogonadotropic Hypogonadism, Metastatic Breast Cancer, Puberty, Delayed, Testosterone Deficiency

How Syntest Ds works

Estrogens modulate the pituitary secretion of gonadotropins, luteinizing hormone, and follicle-stimulating hormone through a negative feedback system; estrogen replacement reduces elevated levels of these hormones.

The effects of testosterone in humans and other vertebrates occur by way of two main mechanisms: by activation of the androgen receptor (directly or as DHT), and by conversion to estradiol and activation of certain estrogen receptors. Free testosterone (T) is transported into the cytoplasm of target tissue cells, where it can bind to the androgen receptor, or can be reduced to 5α-dihydrotestosterone (DHT) by the cytoplasmic enzyme 5α-reductase. DHT binds to the same androgen receptor even more strongly than T, so that its androgenic potency is about 2.5 times that of T. The T-receptor or DHT-receptor complex undergoes a structural change that allows it to move into the cell nucleus and bind directly to specific nucleotide sequences of the chromosomal DNA. The areas of binding are called hormone response elements (HREs), and influence transcriptional activity of certain genes, producing the androgen effects.

Toxicity

LD50 IP 325 mg/Kg (rat). LD50 IV 1740 mg/Kg (mouse). LD50 oral >5000 mg/Kg (rat).

Side effects include amnesia, anxiety, discolored hair, dizziness, dry skin, hirsutism, hostility, impaired urination, paresthesia, penis disorder, peripheral edema, sweating, and vasodilation.

Volume of Distribution

The distribution of exogenous estrogens is similar to that of endogenous estrogens. Estrogens are widely distributed in the body and are generally found in higher concentration in the sex hormone target organs.

Elimination Route

Readily absorbed after oral administration. High concentrations of estrone are achieved with oral administration, whereas higher concentrations of estradiol are generally achieved after percutaneous absorption. Although vaginal products (such as gel, rings, etc.) are administered locally, they achieve high serum concentrations.

The methyl group aids to increase oral bioavailability.

Half Life

Half-life varies, it is in the range 1-2 hr.

6-8 hours

Clearance

There is variation in the clearance rate depends on each estrogen individual: estradiol-17β: 580 L/day/m2 estrone: 4050 L/day/m2 estriol: 1110 L/day/m2