Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0027497 (nausea)
 23,468 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The efficacy, side effects, and biologic actions of the progestogen-only minipills marketed since February 1973 are reviewed. The preparations are: 350 mcg norethisterone (Micronor Ortho), 30 mcg d-norgestrel (Microlut Schering and Microval Wyeth), and 500 mcg lynestrenol (Exluton Organon). The efficacy of these drugs depends on motivation: Pearl indexes vary from 1.17-3.72 for norethisterone, .9-4.4 for d-norgestrel, and .8- 2.2 for lynestrenol. Some physiologic effects of minipills possibly related to their mode of action are impermeable cervical mucus and low levels of progesterone, pregnanediol, estrogen, and LH. The side effects influencing dropout most are spotting (40-55% in the first cycle), polymenorrhea (about 10%), and amenorrhea (about 5-10%). Some transient estrogenic side effects such as nausea, headaches, and breast pain may be due to estrogenic metabolites from lynestrenol and norethisterone. None of the severe estrogenic side effects, such as thrombophlebitis and impaired glucose tolerance and liver function, are characteristic of progestogen pills.
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PMID:[Minipill as the new contraceptive method]. 481 42

2 types of combined estrogen-progestogen oral contraceptives (OCs) were administered to 40 women for 3 cycles. The women were selected on the basis of willingness to participate and attend the clinic at monthly intervals as well as absences of contraindications to contraceptive steroid therapy. 32 of the women had a family income below Rs. 250/month, 15 had below Rs. 100/month, all at poverty level. Group A was given a combination of Lynestrenol 2.5 mg with Mestranol 0.75 mg (Noracycline 2.5) from day 5 to day 26 of each of 3 cycles. Group B was given Megestrol acetate 4 mg with 0.05 mg ethinyl estradiol from day 5 to day 26 of each of 3 cycles (both groups were equally divided into 20 women each). The women reported for follow-up between 22-25 days of each cycle. Blood samples were collected in 4 consecutive cycles (1st cycle was a control) and analyzed. Side effects such as nausea, vomiting, bleeding, and measures of blood pressure and weight were recorded. No significant differences were noted in mean transominases, bilirubin levels, serum proteins, or albuminium/globulin ratio and all were in normal ranges. The women's weights ranged from 26-50 kg and hemoglobin values from 9.6-12 gm. In other tests performed with low dosages of progestogens (0.5-2.5 mg) and estrogens (0.05-0.075 mg) no biochemical evidence of liver dysfunction was found except a slightly higher percentage of raised BSP retention in some series. Though gross abnormalities were not observed in commonly used parameters of liver function, it is suggested that previous liver disease with residual damage or history of idiopathic jaundice with pregnancy should be contraindications for use of these drugs. Dosage used should be minimum, compatible with efficacy for both the estrogens and the progestogens.
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PMID:Metabolic effects of contraceptive steroids IV. Liver function tests--short term observations. 1231 Apr 10