Tìm theo
Drospirenone
Các tên gọi khác (7 ) :
  • 1,2-Dihydrospirorenone
  • 6beta,7Beta;15beta,16beta-dimethylene-3-oxo-17alpha-pregn-4-ene-21,17-carbolactone
  • 6β,7β,15β,16β-dimethylene-3-oxo-17α-pregn-4-ene-21,17 carbolactone
  • Dehydrospirorenone
  • Drospirenona
  • Drospirenonum
  • DRSP
mineralocorticoid receptor antagonists
Thuốc Gốc
Small Molecule
CAS: 67392-87-4
CTHH: C24H30O3
PTK: 366.4932
Drospirenone is a synthetic progestin that is an analog to spironolactone. It is found in a number of birth control formulations. Drospirenone differs from other synthetic progestins in that its pharmacological profile in preclinical studies shows it to be closer to the natural progesterone. As such it has anti-mineralocorticoid properties, counteracts the estrogen-stimulated activity of the renin-angiotensin-aldosterone system, and is not androgenic. It was shown in animal studies that drospirenone exhibits antiandrogenic activity judging from accessory sex gland growth in castrated, androgen-treated, juvenile rats.
Nhận Dạng Quốc Tế & Đặc Tính Hóa Học
Công thức hóa học
Phân tử khối
366.4932
Monoisotopic mass
366.219494826
InChI
InChI=1S/C24H30O3/c1-22-6-3-12(25)9-17(22)13-10-14(13)20-16(22)4-7-23(2)21(20)15-11-18(15)24(23)8-5-19(26)27-24/h9,13-16,18,20-21H,3-8,10-11H2,1-2H3/t13-,14+,15-,16+,18+,20-,21+,22-,23+,24+/m1/s1
InChI Key
InChIKey=METQSPRSQINEEU-HXCATZOESA-N
IUPAC Name
(1R,2R,4R,10R,11S,14S,15S,16S,18S,19S)-10,14-dimethylspiro[hexacyclo[9.8.0.0^{2,4}.0^{5,10}.0^{14,19}.0^{16,18}]nonadecane-15,2'-oxolan]-5-ene-5',7-dione
Traditional IUPAC Name
drospirenone
SMILES
[H][C@@]12C[C@]1([H])[C@@]1([H])[C@]3([H])[C@]4([H])C[C@]4([H])[C@@]4(CCC(=O)O4)[C@@]3(C)CC[C@]1([H])[C@@]1(C)CCC(=O)C=C21
Độ hòa tan
2.25e-03 g/l
logP
3.37
logS
-5.2
pKa (Strongest Basic)
-5
PSA
43.37 Å2
Refractivity
101.68 m3·mol-1
Polarizability
41.81 Å3
Rotatable Bond Count
0
H Bond Acceptor Count
2
H Bond Donor Count
0
Physiological Charge
0
Number of Rings
7
Bioavailability
1
Rule of Five
true
Ghose Filter
true
Dược Lực Học : Drospirenone differs from other synthetic progestins in that its pharmacological profile in preclinical studies shows it to be closer to the natural progesterone. As such it has anti-mineralocorticoid properties, counteracts the estrogen-stimulated activity of the renin-angiotensin-aldosterone system, and is not androgenic.
Cơ Chế Tác Dụng : Drospirenone is a synthetic progestin that is an analog to spironolactone. It is found in a number of birth control formulations. Drospirenone differs from other synthetic progestins in that its pharmacological profile in preclinical studies shows it to be closer to the natural progesterone. As such it has anti-mineralocorticoid properties, counteracts the estrogen-stimulated activity of the renin-angiotensin-aldosterone system, and is not androgenic. It was shown in animal studies that drospirenone exhibits antiandrogenic activity judging from accessory sex gland growth in castrated, androgen-treated, juvenile rats. Progestins such as drospirenone diffuse freely into target cells in the female reproductive tract, mammary gland, hypothalamus, and the pituitary and bind to the progesterone receptor. Once bound to the receptor, progestins slow the frequency of release of gonadotropin releasing hormone (GnRH) from the hypothalamus and blunt the pre-ovulatory LH surge.
Dược Động Học :
▧ Absorption :
Oral bioavailability is approximately 76%.
▧ Protein binding :
95-97%
▧ Metabolism :
Extensively metabolized following oral or intravenous administration. The two major metabolites are inactive and are formed independent of the CYP450 enzyme system. The metabolites are the acid form of drospirenone formed by opening of the lactone ring and the 4,5-dihydro-drospirenone-3-sulfate.
▧ Half Life :
30 hours
Chỉ Định : For the prevention of pregnancy in women who elect an oral contraceptive.
Tương Tác Thuốc :
  • Artemether Artemether may decrease the effectiveness of drospirinone by increasing its metabolism via CYP3A4. Consider an alternate non-hormonal means of contraception during artemether therapy.
  • Benazepril Increased risk of hyperkalemia
  • Bexarotene Bexarotene may decrease the serum concentration of Contraceptives (Progestins). Since bexarotene is teratogenic and can lower serum concentrations of drospirenone, it is advised that women of childbearing potential use two forms of contraception (including at least one non-hormonal form).
  • Boceprevir Boceprevir increases levels by affecting CYP3A4 metabolism. Concomitant therapy is contraindicated.
  • Candesartan Increased risk of hyperkalemia
  • Captopril Increased risk of hyperkalemia
  • Cilazapril Increased risk of hyperkalemia
  • Colesevelam Bile Acid Sequestrants may decrease the serum concentration of Contraceptives (Progestins). Administer oral progestin-containing contraceptives at least 1-4 hours prior to or 4-6 hours after administration of a bile acid sequestrant. Consider alternatives in order to avoid this combination when possible, due to the risk for impaired contraceptive effectiveness.
  • Enalapril Increased risk of hyperkalemia
  • Eprosartan Increased risk of hyperkalemia
  • Fosinopril Increased risk of hyperkalemia
  • Heparin Heparin can increase risk of hyperkalemia for patients on drospirenone
  • Irbesartan Increased risk of hyperkalemia
  • Lisinopril Increased risk of hyperkalemia
  • Losartan Increased risk of hyperkalemia
  • Olmesartan Increased risk of hyperkalemia
  • Perindopril Increased risk of hyperkalemia
  • Potassium Increased risk of hyperkalemia
  • Quinapril Increased risk of hyperkalemia
  • Ramipril Increased risk of hyperkalemia
  • Telmisartan Telmisartan may increase the hyperkalemic effect of Drospirenone. Monitor for increased serum potassium concentrations during concomitant therapy.
  • Thiopental Thiopental may decrease the effect of Drospirenone. Contraceptive failure may occur. Alternative nonhomomonal contraception should be used during concomitant therapy.
  • Trandolapril Increased risk of hyperkalemia. Monitor serum potassium levels.
  • Treprostinil Additive hypotensive effect. Monitor antihypertensive therapy during concomitant use.
  • Tretinoin Oral Tretinoin may decrease the effect of oral contraceptive, Drospirenone. An alternate form of contraception should be used during concomitant therapy.
  • Triamterene Increased risk of hyperkalemia
  • Warfarin Drospirenone may alter the anticoagulant effect of warfarin. Concomitant therapy should be avoided. Monitor for changes in coagulation status if drospirenone is initiated, discontinued or dose changed.
Liều Lượng & Cách Dùng : Tablet - Oral - 0.451 mg levomefolate calcium
Tablet - Oral - 3 mg drospirenone (DRSP), 0.03 mg ethinyl estradiol (EE) as betadex clathrate and 0.451 mg levomefol
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