Continuous low-dose progestagen oral contraceptives

1974 ◽  
Vol 12 (3) ◽  
pp. 9-11

Combined oestrogen-progestagen contraceptives, usually taken for three weeks out of four, are effective in preventing pregnancy. The small risks of thrombosis and embolism are on the whole decreased with reduced doses of oestrogen.1 The use of the combined pill is also associated with a number of metabolic changes, including marginal impairment of carbohydrate tolerance and of liver function and an increase in some plasma lipids. Most of these metabolic changes are produced by the oestrogen component, and recent studies suggest that the progestagen is relatively inactive in this respect.2 The British Committee on Safety of Medicines and the Medical Committee of the International Planned Parenthood Federation now recommend that the combined preparations should not contain more than 50 mcg (0.05 mg) of oestrogen.

Contraception ◽  
1980 ◽  
Vol 22 (6) ◽  
pp. 597-603 ◽  
Author(s):  
J. Dickerson ◽  
R. Bressler ◽  
C.D. Christian

1970 ◽  
Vol 63 (4) ◽  
pp. 717-735 ◽  
Author(s):  
U. Larsson-Cohn ◽  
R. Berlin ◽  
O. Vikrot

ABSTRACT Free fatty acids (FFA), triglycerides (TG), total and free cholesterol, total phospholipids and the individual phospholipids lysolecithin, sphingomyelin, lecithin and cephalin were determined in four groups of women, each consisting of nine or ten subjects. The determinations were performed before treatment and about every third month during one year of medication. Two combined drugs, Anconcene® (Chlormadinone acetate = CMA, 3 mg + mestranol 0.1 mg) and Conluten® (Norethindrone = NET, 2 mg + mestranol 0.1 mg) and two low-dose gestagen drugs, CMA 0.5 mg and NET 0.4 mg were used. FFA decreased in the Anconcene group. TG increased among those taking Anconcene, Conluten and NET. Slight increases of cholesterol were noted in the two groups taking combined drugs. Total phospholipids were increased in the Anconcene group and the Conluten group. Among the individual phospholipids, changes appeared similar to those found during pregnancy. They were most pronounced in the Anconcene group. It seems that it is the oestrogenic component of the combined drugs that is responsible for many of the alterations. It is suggested that the testosterone derivative NET but not the progesterone derivative CMA may have anti-oestrogenic effect in this connection.


Author(s):  
Ibrahim I. Bolaji ◽  
Helen Grimes ◽  
Gabriel Mortimer ◽  
Donald F. Tallon ◽  
Patrick F. Fottrell ◽  
...  

Author(s):  
Meilinah Hidayat ◽  
Sijani Prahastuti ◽  
Estherolita Dewi ◽  
Dewi Safitri ◽  
Siti Farah Rahmawati ◽  
...  

ABSTRACTObjective: As an antiobesity therapy, combination extracts of Detam 1 soybean and Jati Belanda will be consumed for a long time; therefore, theirtoxicities to the liver need to be investigated. To determine the effect of subchronic toxicity test of combination of ethanol extract of Detam 1 soybean(EEDS) and ethanol extract of Jati Belanda (EEJB) on liver function with parameters: Alanine transaminase (ALT), macroscopic, and histopathologicalof liver.Methods: This study was conducted on 120 Wistar rats (60 males and 60 females), 90 days (treatment group) and 120 days (satellite group). Ratswere divided into six treatment groups (3 test materials, 1 control, and 2 satellites); each group included 10 males and 10 females.Results: ALT levels of treatment groups (low dose, medium, and high), both males and females were lower than the control group (p<0.05). Thetreatment groups demonstrated a good effects effect on liver function. Liver weight of all groups showed no significant difference compared with thecontrol group (p>0.05). Results of histopathological score interpretation of male and female liver rats of low dose groups were not disturbed; middledose groups were slightly disturbed and high dose groups were damaged. Satellite high doses of male groups were disrupted, while female groupswere not.Conclusion: The combination of EEDS and EEJB has a good effect on liver function, did not lead to change organ weight and at low doses did not causerenal histopathology damage in rats after 90 days administration.Keywords: Combination of soybean Jati Belanda, Toxicity subchronic test, Function, Weight, Histopathology, Liver.


1987 ◽  
Author(s):  
S J Machin ◽  
I J Mackie ◽  
K Walshe ◽  
M D Gillmer

The haemostatic system was investigated in 26 women taking cyclically administered triphasic combined oral contraceptives for the first time during their first six cycles. Fourteen women received Logynon (mean dose 32.4μg ethinyloestradiol, 92pg progestagen) and 12 received SHD 415G (Schering) which contains a mean dosage of 32.4μg ethinyloestradiol and 78pg gestodene, a recently developed progesterone. The Logynon group showed a significant increase (p<0.005) in fibrinogen (pre-mean 284.4 g/1; after 1 cycle 347.3 g/1, after 6 cycles 318.6 g/1) , factor VII (65.8 u/1 to 73.9 u/1 to 83.2 u/1), factor XII (1.74 u/1 to 2.41 u/1, to 2.25 u/1), plasminogen (100.9 u/1 to 135.1 u/1 to 126.3 u/1); decrease in ATIII (115.9 u/1 to 103.1 u/1 to 93.4 u/1) but no significant change in factor X (98.4 u/1 to 108.9 u/1 to 102.4) or protein C (0.85 u/1 to 0.88 u/1 to 0.94 u/1) activity. The SHD 415G group showed similar changes with an increase in fibrinogen (247.9 g/1 to 330.8 g/1 to 373 .1 g/1), factor VII (63.1 u/1 to 73.1 u/1 to 90.3 u/1, factor X (98.3 u/1 to 112.0 u/1 to 124.4 u/1), factor XII (1.46 u/1, to 1.93 u/1, to 2.03 u/1), plasminogen (110.8 u/1 to 125.4 u/1 to 136.7 u/1); decrease in ATIII (113.1 u/1 to 96.3 u/1 to 89.7 u/1), but no change in protein C (0.84 u/1 to - 0.78 u/1 to 0.85 u/1) activity. These changes were apparent after the first cycle of therapy and the differences were maintained over the six cycle period. There was no increase in protein C activity despite changes in the other vitamin K dependent proteins factors VII and X. Both low oestrogen dose triphasic pills caused similar prothrombotic changes which were not modified by the new progesterone, gestodene.


2005 ◽  
Vol 90 (7) ◽  
pp. 3863-3870 ◽  
Author(s):  
Jean-Patrice Baillargeon ◽  
Donna K. McClish ◽  
Paulina A. Essah ◽  
John E. Nestler

Contraception ◽  
2009 ◽  
Vol 79 (6) ◽  
pp. 424-427 ◽  
Author(s):  
Ronald T. Burkman ◽  
Alan C. Fisher ◽  
George J. Wan ◽  
Christopher E. Barnowski ◽  
Katherine D. LaGuardia

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