Zovia 1 / 50 Side Effects
Generic Name: ethinyl estradiol / ethynodiol
Note: This page contains side effects data for the generic drug ethinyl estradiol / ethynodiol. It is possible that some of the dosage forms included below may not apply to the brand name Zovia 1 / 50.
It is possible that some side effects of Zovia 1 / 50 may not have been reported. These can be reported to the FDA here. Always consult a healthcare professional for medical advice.
For the Consumer
Applies to ethinyl estradiol / ethynodiol: oral tablet
Get emergency medical help if you have any of these signs of an allergic reaction while taking ethinyl estradiol / ethynodiol: hives; difficult breathing; swelling of your face, lips, tongue, or throat.
Stop using birth control pills and call your doctor at once if you have a serious side effect such as:
sudden numbness or weakness, especially on one side of the body;
sudden and severe headache, confusion, problems with vision, speech, or balance;
chest pain or heavy feeling, pain spreading to the arm or shoulder, nausea, sweating, general ill feeling;
sudden cough, wheezing, rapid breathing, coughing up blood;
pain, swelling, warmth, or redness in one or both legs;
a change in the pattern or severity of migraine headaches;
nausea, upper stomach pain, itching, loss of appetite, dark urine, clay-colored stools, jaundice (yellowing of the skin or eyes);
swelling in your hands, ankles, or feet;
a breast lump; or
symptoms of depression (sleep problems, weakness, tired feeling, mood changes).
Less serious side effects of ethinyl estradiol / ethynodiol may include:
mild nausea (especially when you first start taking this medicine), vomiting, bloating, stomach cramps;
breast tenderness or swelling, nipple discharge;
freckles or darkening of facial skin, increased hair growth, loss of scalp hair;
changes in weight or appetite;
problems with contact lenses;
vaginal itching or discharge; or
changes in your menstrual periods, decreased sex drive.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects.
For Healthcare Professionals
Applies to ethinyl estradiol / ethynodiol: oral tablet
Many of the adverse effects experienced by women on oral contraceptive combination products have been related to a relative excess or deficiency of the estrogen and progestin components of these formulations. The following categorizes many of the frequent adverse effects by relative excess or deficiency of these components.
Acne, oily skin
Late breakthrough bleeding
Early/mid-cycle breakthrough bleeding
A number of studies have suggested that use of oral contraceptives decreases the risk of ovarian cancer. Specifically, the risk of epithelial ovarian cancers is decreased by 40%. The protection against ovarian cancer may last for 10 to 15 years after discontinuation of oral contraceptives. After long term use (12 years), the risk of ovarian cancer is decreased by as much as 80%.
The risk of endometrial cancer is decreased by approximately 50%. Protection may last for 15 years after discontinuation and may be greatest for nulliparous women who may be at higher risk for endometrial carcinoma than other women.
The incidence of hospitalization for pelvic inflammatory disease is approximately 50% lower in women taking oral contraceptives. The reason for the decrease in the frequency (or severity) of pelvic inflammatory disease in women taking oral contraceptives has not been fully elucidated.
Some recent studies have suggested that the decrease in frequency of functional ovarian cysts reported with some older formulations may not occur in women taking newer low dose formulations.
One recent study (The Nurses' Health Study) has suggested that long term use of oral contraceptives is safe and does not adversely affect long term risk for mortality.[Ref]
General side effects may have included several non-contraceptive health benefits. These benefits may have included protection against two malignant neoplasms (endometrial carcinoma and ovarian cancer). In addition, use of oral contraceptive combinations decreases the frequency of benign breast tumors, ovarian cysts, ectopic pregnancy, menstrual irregularity, iron deficiency anemia, dysmenorrhea, and pelvic inflammatory disease.[Ref]
Gastrointestinal side effect have included nausea, which occurred in approximately 10% of treated women and was more frequent during the first cycles of therapy. Some early reports suggested an association between oral contraceptive use and gallbladder disease.[Ref]
Cases of oral contraceptive-induced esophageal ulceration and geographic tongue have been reported rarely.
More recent studies have suggested that the risk of gallbladder disease is minimal.[Ref]
A number of studies have examined a possible relationship between the use of oral contraceptives and the development of breast cancer. Many of the studies have reported conflicting results. A committee of the World Health Organization evaluated these studies and the risks of breast cancer and concluded that: "Numerous studies have found no overall association between oral contraceptive use and risk of breast cancer." In addition, the same committee also examined a possible relationship between oral contraceptive use and neoplasms of the uterine cervix and concluded that: "There are insufficient data to draw any firm conclusions regarding the effects of combined oral contraceptives on the risk of cervical adenocarcinoma."
The World Health Organization committee also noted that some studies "have found a weak association between long-term use of oral contraceptives and breast cancer diagnosed before the age of 36, and perhaps up to the age 45....It is unclear whether this observed association is attributable to bias, the development of new cases of cancer, or accelerated growth of existing cancers."
The World Health Organization committee further concluded that there is no increased risk of breast cancer in women over the age of 45 who have previously taken oral contraceptives. In addition, studies suggest that use of oral contraceptives does not place specific groups of women (like those with a family history of breast cancer) at higher or lower risk, and variations in the hormonal content of oral contraceptives do not influence the risk of breast cancer.
In general, studies evaluating the potential risk of cervical cancer in patients taking oral contraceptives have been complicated by the large number of confounding factors which make investigations into the epidemiology of this neoplasm difficult. Some studies have suggested that women taking oral contraceptives are at increased risk of dysplasia, epidermoid carcinoma, and adenocarcinoma of the cervix. However, other studies have not found such an association.[Ref]
Oncologic side effects have included reports of breast cancer.[Ref]
Detailed information concerning the effects of oral contraceptive therapy on lipid metabolism is available in the Endocrine paragraph of this side effect monograph.
Some early investigations of women taking high dose estrogen combinations (50 mcg or more of ethinyl estradiol or equivalent daily) suggested that such women may be at increased risk of cardiovascular complications (myocardial infarction, stroke, and vascular thrombosis, including venous thromboembolism). However, more recent large investigations of women taking low dose estrogen combinations have suggested that oral contraceptive use is not associated with an increased risk of serious cardiovascular complications in healthy non smoking women up to the age of 45. (For women aged 35 to 44 who smoke or who have preexisting systemic diseases that may affect the cardiovascular system, use of oral contraceptives is not recommended.)
However, some investigators have suggested that even the new low dose products may result in adverse effects on lipid metabolism and should prompt careful review of a woman's cardiovascular risk factors before a decision to use oral contraceptive combinations is made.
The frequency of both subarachnoid hemorrhage and thrombotic stroke has been reported by some investigators to be higher in women taking oral contraceptive hormones. However, other investigators have suggested that the risk of these effects for women using newer low dose formulations are very small for young women without underlying cardiovascular disease or other risk factors.[Ref]
Cardiovascular side effects of the estrogen component of this combination drug have included significant hypertension. However, significant blood pressure increases generally occurred only in women receiving high-dose estrogen products (50 mcg or more of ethinyl estradiol or equivalent daily). Estrogens have also been associated with edema. In addition, exogenous estrogens may have exerted cardio-protective effects by causing favorable changes in lipid profiles. These beneficial effects, however, may have been partially or completely offset by alterations in lipid profiles induced by exogenous progestins.[Ref]
Endocrine side effects have included complex alterations in plasma lipid profiles and carbohydrate metabolism. In addition, oral contraceptive use has been reported to cause conception delay.[Ref]
All the progestins which occur in commercially available oral contraceptive combinations have adverse effects on lipid profiles. Specifically, these progestins exert antiestrogen and androgen effects and decrease HDL (and HDL2) cholesterol levels and increase LDL cholesterol levels. However, the estrogens in oral contraceptive combinations exert opposing effects. Consequently, alterations in lipid profiles are related to the relative amount and potency of the specific estrogen and progestin in a given product. (Ethynodiol exerts moderate progestin and androgen effects and a weak antiestrogen effect.)
A number of investigations have suggested that oral contraceptive combinations may decrease glucose tolerance. However, some recent studies with low dose preparations have suggested that decreases in glucose tolerance due to oral contraceptive combinations are generally minimal.
Despite the potentially adverse effects of oral contraceptives on lipid levels and glucose tolerance, some investigators have suggested that young diabetic women without existing vascular disease or severe lipidemias may be candidates for low dose oral contraceptive combinations provided that they receive close monitoring for adverse metabolic effects.[Ref]
The rate of death due to hepatocellular carcinoma in the United States has not changed during the last 25 years (a time during which use of oral contraceptive hormones has increased dramatically).
A committee of the World Health Organization has reported that in developing countries where hepatitis B virus infection and hepatocellular carcinoma are common, "short term use of oral contraceptives does not appear to be associated with an increased risk. Data on the effects of long term use are scarce."
A recent Italian case-control study of women with hepatocellular carcinoma has suggested that the relative risk of hepatocellular carcinoma is 2.2 for oral contraceptive users compared to women who never used oral contraceptives.
A similar American case-control study from 1989 also reported a strong association between oral contraceptive use and hepatocellular carcinoma but concluded that: "If this observed association is causal, the actual number of cases of liver cancer in the United States attributable to oral contraceptive use is small. Therefore, these findings do not have public health importance in the United States and other Western nations."[Ref]
Hepatic side effects have included focal nodular hyperplasia, intrahepatic cholestasis, liver cell adenomas, hepatic granulomas, hepatic hemangiomas and well-differentiated hepatocellular carcinomas.[Ref]
Hematologic side effects have included thromboembolism. However, because the dose of exogenous estrogens is low in most commercially available preparations, the risk has been minimal for most women (except women who are over age 35 and smoke and women with a previous history of thrombotic diseases).[Ref]
Cases of venous thrombosis, pulmonary embolism (sometimes fatal), and arterial thrombosis have been reported rarely.
Previous thrombotic disease is considered a contraindication to use of oral contraceptive combinations.[Ref]
Some women experience oligomenorrhea and amenorrhea following termination or oral contraceptive use.[Ref]
Genitourinary side effects have included breakthrough bleeding and spotting, especially during the first several cycles of oral contraceptive use. Non-hormonal causes of such bleeding should be excluded.[Ref]
Psychiatric side effects have included depression and precipitation of panic disorder.[Ref]
Immunologic side effects have included systemic lupus erythematosus, which has been reported rarely.[Ref]
Other side effects have included a case of fatal pulmonary occlusive disease associated with oral contraceptive therapy.[Ref]
Nervous system side effects have included chorea, which has been reported once in association with oral contraceptives.[Ref]
Ocular side effects have included retinal thrombosis, which has been reported rarely. In addition, the manufacturers of oral contraceptive products have reported that some patients develop changes in contact lens tolerance.[Ref]
1. "Product Information. Ortho-Novum (oral contraceptive combination pill)." Ortho Pharmaceutical Corporation, Raritan, NJ.
2. Peterson HB, Lee NC "Long-term health risks and benefits of oral contraceptive use." Obstet Gynecol Clin North Am 17 (1990): 775-88
3. "Oral contraceptives and neoplasia. WHO Scientific Group." World Health Organ Tech Rep Ser 817 (1992): 1-46
4. Friedman AJ, Wheeler JM "Incidence of ovarian cyst formation in women taking ethynodiol diacetate, 1mg, with ethinyl estradiol, 35 micrograms." J Reprod Med 36 (1991): 345-9
5. John EM, Whittemore AS, Harris R, Itnyre J "Characteristics relating to ovarian cancer risk: collaborative analysis of seven U.S. case-control studies. Epithelial ovarian cancer in black women. Collaborative Ovarian Cancer Group." J Natl Cancer Inst 85 (1993): 142-7
6. Lanes SF, Birmann B, Walker AM, Singer S "Oral contraceptive type and functional ovarian cysts." Am J Obstet Gynecol 166 (1992): 956-61
7. Burkman RT Jr "Benefits and risk of oral contraceptives. A reassessment." J Reprod Med 36 (1991): 217-8
8. Colditz GA "Oral contraceptive use and mortality during 12 years of follow-up: the Nurses' Health Study." Ann Intern Med 120 (1994): 821-6
9. Steinberg WM "Oral contraception: risks and benefits." Adv Contracept 5 (1989): 219-28
10. Hankinson SE, Colditz GA, Hunter DJ, Spencer TL, Rosner B, Stampfer MJ "A quantitative assessment of oral contraceptive use and risk of ovarian cancer." Obstet Gynecol 80 (1992): 708-14
11. Gross TP, Schlesselman JJ "The estimated effect of oral contraceptive use on the cumulative risk of epithelial ovarian cancer." Obstet Gynecol 83 (1994): 419-24
12. Grimes DA "The safety of oral contraceptives: epidemiologic insights from the first 30 years." Am J Obstet Gynecol 166 (1992): 1950-4
13. Holt VL, Daling JR, McKnight B, Moore D, Stergachis A, Weiss NS "Functional ovarian cysts in relation to the use of monophasic and triphasic oral contraceptives." Obstet Gynecol 79 (1992): 529-33
14. Shoupe D "Multicenter randomized comparative trial of two low-dose triphasic combined oral contraceptives containing desogestrel or norethindrone." Obstet Gynecol 83 (1994): 679-85
15. Oren R, Fich A "Oral contraceptive-induced esophageal ulcer. Two cases and literature review." Dig Dis Sci 36 (1991): 1489-90
16. Waltimo J "Geographic tongue during a year of oral contraceptive cycles." Br Dent J 171 (1991): 94-6
17. Calle EE, Heath CW, Miraclemcmahill HL, Coates RJ, Liff JM, Franceschi S, Talamini R, Chantarakul N, Koetsawang S, Rachawat D "Breast cancer and hormonal contraceptives: further results." Contraception 54 (suppl (1996): s1-106
18. Turnquest MA "Oral contraceptive use and incidence of cervical intraepithelial neoplasia." Am J Obstet Gynecol 168 (1993): 1895-6
19. Thomas DB "Oral contraceptives and breast cancer: review of the epidemiologic literature." Contraception 43 (1991): 597-642
20. Kaunitz AM "Oral contraceptives and gynecologic cancer: an update for the 1990s." Am J Obstet Gynecol 167 (1992): 1171-6
21. Miller DR, Rosenberg L, Kaufman DW, Stolley P, Warshauer ME, Shapiro S "Breast cancer before age 45 and oral contraceptive use: new findings." Am J Epidemiol 129 (1989): 269-80
22. Delgado-Rodriguez M, Sillero-Arenas M, Martin-Moreno JM, Galvez-Vargas R "Oral contraceptives and cancer of the cervix uteri. A meta-analysis." Acta Obstet Gynecol Scand 71 (1992): 368-76
23. Jones MW, Silverberg SG "Cervical adenocarcinoma in young women: possible relationship to microglandular hyperplasia and use of oral contraceptives." Obstet Gynecol 73 (1989): 984-9
24. Murray PP, Stadel BV, Schlesselman JJ "Oral contraceptive use in women with a family history of breast cancer." Obstet Gynecol 73 (1989): 977-83
25. Mishell DR "Contraception." N Engl J Med 320 (1989): 777-85
26. Ewertz M "Oral contraceptives and breast cancer risk in Denmark." Eur J Cancer 28A (1992): 1176-81
27. Zondervan KT, Carpenter LM, Painter R, Vessey MP "Oral contraceptives and cervical cancer - further findings from the oxford family planning association contraceptive study." Br J Cancer 73 (1996): 1291-7
28. Schlesselman JJ "Oral contraceptives and breast cancer." Am J Obstet Gynecol 163 (1990): 1379-87
29. Olsson H, Moller TR, Ranstam J "Early oral contraceptive use and breast cancer among premenopausal women: final report from a study in southern Sweden." J Natl Cancer Inst 81 (1989): 1000-4
30. Romieu I, Willett WC, Colditz GA, Stampfer MJ, Rosner B, Hennekens CH, Speizer FE "Prospective study of oral contraceptive use and risk of breast cancer in women." J Natl Cancer Inst 81 (1989): 1313-21
31. Brinton LA "Oral contraceptives and cervical neoplasia." Contraception 43 (1991): 581-95
32. Lavecchia C, Negri E, Franceschi S, Talamini R, Amadori D, Filiberti R, Conti E, Montella M, Veronesi A, Parazzini F, Ferraroni M "Oral contraceptives and breast cancer: a cooperative italian study." Int J Cancer 60 (1995): 163-7
33. Rettig BA, Lemon HM "Cancers related to contraceptive use." Br J Cancer 74 (1996): 1509-10
34. Sillero-Arenas M, Rodriguez-Contreras R, Delgado-Rodriguez M, Bueno-Cavanillas A, Galvez-Vargas R "Patterns of research. Oral contraceptives and cervical cancer." Acta Obstet Gynecol Scand 70 (1991): 143-8
35. Rosenberg L, Palmer JR, Clarke EA, Shapiro S "A case-control study of the risk of breast cancer in relation to oral contraceptive use." Am J Epidemiol 136 (1992): 1437-44
36. Lund E "Oral contraceptives and breast cancer. A review with some comments on mathematical models." Acta Oncol 31 (1992): 183-6
37. Poulter NR, Chang CL, Farley TMM, Meirik O, Marmot MG "Haemorrhagic stroke, overall stroke risk, and combined oral contraceptives: results of an international, multicentre, case-control study." Lancet 348 (1996): 505-10
38. Derman RJ "Oral contraceptives and cardiovascular risk. Taking a safe course of action." Postgrad Med 88 (1990): 119-22
39. Petitti DB, Sidney S, Bernstein A, Wolf S, Quesenberry C, Ziel HK "Stroke in users of low-dose oral contraceptives." N Engl J Med 335 (1996): 8-15
40. Lidegaard O "Oral contraception and risk of a cerebral thromboembolic attack: results of a case-control study." BMJ 306 (1993): 956-63
41. Derman R "Oral contraceptives: a reassessment." Obstet Gynecol Surv 44 (1989): 662-8
42. Vandenbroucke JP, Bloemenkamp KWM, Helmerhorst FM, Rosendaal FR "Oral contraceptives and mortality from venous thromboembolism - reply." Lancet 348 (1996): 1096-7
43. Thorogood M, Mann J, Murphy M, Vessey M "Fatal stroke and use of oral contraceptives: findings from a case- control study." Am J Epidemiol 136 (1992): 35-45
44. Farley TMM, Meirik O, Poulter NR, Chang CL, Marmot MG "Oral contraceptives and thrombotic diseases: impact of new epidemiological studies." Contraception 54 (1996): 193-5
45. Thorogood M "Risk of stroke in users of oral contraceptives." JAMA 281 (1999): 1255-6
46. Piegsa K, Guillebaud J "Oral contraceptives and the risk of DVT." Practitioner 240 (1996): 544
47. Williams RS "Benefits and risks of oral contraceptive use." Postgrad Med 92 (1992): 155-7
48. Levine AB, Teppa J, Mcgough B, Cowchock FS "Evaluation of the prethrombotic state in pregnancy and in women using oral contraceptives." Contraception 53 (1996): 255-7
49. Hannaford PC, Croft PR, Kay CR "Oral contraception and stroke. Evidence from the Royal College of General Practitioners' Oral Contraception Study." Stroke 25 (1994): 935-42
50. Martinelli I, Rosendaal FR, Vandenbroucke JP, Mannucci PM "Oral contraceptives are a risk factor for cerebral vein thrombosis." Thromb Haemost 76 (1996): 477-8
51. Rosenberg L, Palmer JR, Lesko SM, Shapiro S "Oral contraceptive use and the risk of myocardial infarction." Am J Epidemiol 131 (1990): 1009-16
52. Leaf DA, Bland D, Schaad D, Neighbor WE, Scott CS "Oral contraceptive use and coronary risk factors in women." Am J Med Sci 301 (1991): 365-8
53. Speroff L "Oral contraceptives and venous thromboembolism." Int J Gynaecol Obstet 54 (1996): 45-50
54. Norris LA, Bonnar J "The effect of oestrogen dose and progestogen type on haemostatic changes in women taking low dose oral contraceptives." Br J Obstet Gynaecol 103 (1996): 261-7
55. Poulter NR, Chang CL, Farley TMM, Meirik O, Marmot MG, Debertribeiro M, Medina E, Artigas J, Shen H, Zhong YH, Zhang DW, "Ischaemic stroke and combined oral contraceptives: results of an international, multicentre, case-control study." Lancet 348 (1996): 498-505
56. Farmer R, Lewis M "Oral contraceptives and mortality from venous thromboembolism." Lancet 348 (1996): 1095
57. Thorneycroft IH "Oral contraceptives and myocardial infarction." Am J Obstet Gynecol 163 (1990): 1393-7
58. Spellacy WN, Ellingson AB, Tsibris JC "The effects of two triphasic oral contraceptives on carbohydrate metabolism in women during 1 year of use." Fertil Steril 51 (1989): 71-4
59. Burkman RT, Zacur HA, Kimball AW, Kwiterovich P, Bell WR "Oral contraceptives and lipids and lipoproteins: Part I--Variations in mean levels by oral contraceptive type." Contraception 40 (1989): 553-61
60. Kjaer K, Hagen C, Sando SH, Eshoj O "Contraception in women with IDDM. An epidemiological study." Diabetes Care 15 (1992): 1585-90
61. Bracken MB, Hellenbrand KG, Holford TR "Conception delay after oral contraceptive use: the effect of estrogen dose." Fertil Steril 53 (1990): 21-7
62. Stubblefield PG "Choosing the best oral contraceptive." Clin Obstet Gynecol 32 (1989): 316-28
63. Miwa LJ, Edmunds AL, Shaefer MS, Raynor SC "Idiopathic thromboembolism associated with triphasic oral contraceptives." DICP 23 (1989): 773-5
64. Hannaford PC, Kay CR "Oral contraceptives and diabetes mellitus." BMJ 299 (1989): 1315-6
65. Godsland IF, Crook D "Update on the metabolic effects of steroidal contraceptives and their relationship to cardiovascular disease risk." Am J Obstet Gynecol 170 (1994): 1528-36
66. Janaud A, Rouffy J, Upmalis D, Dain MP "A comparison study of lipid and androgen metabolism with triphasic oral contraceptive formulations containing norgestimate or levonorgestrel." Acta Obstet Gynecol Scand Suppl 156 (1992): 33-8
67. Garg SK, Chase HP, Marshall G, Hoops SL, Holmes DL, Jackson WE "Oral contraceptives and renal and retinal complications in young women with insulin-dependent diabetes mellitus." JAMA 271 (1994): 1099-102
68. Mooney MJ, Nyreen MR, Hall RA, Carter PL "Hepatic adenoma presenting as a right lower quadrant mass." Am Surg 59 (1993): 229-31
69. Weden M, Glaumann H, Einarsson K "Protracted cholestasis probably induced by oral contraceptive." J Intern Med 231 (1992): 561-5
70. Tao LC "Oral contraceptive-associated liver cell adenoma and hepatocellular carcinoma." Cancer 68 (1991): 341-7
71. Aldinger K, Ben-Menachem Y, Whalen G "Focal nodular hyperplasia of the liver associated with high-dosage estrogens." Arch Intern Med 137 (1977): 357-9
72. Conter RL, Longmire WP Jr "Recurrent hepatic hemangiomas. Possible association with estrogen therapy." Ann Surg 207 (1988): 115-9
73. Palmer JR, Rosenberg L, Kaufman DW, Warshauer ME, Stolley P, Shapiro S "Oral contraceptive use and liver cancer." Am J Epidemiol 130 (1989): 878-82
74. Mathieu D, Zafrani ES, Anglade MC, Dhumeaux D "Association of focal nodular hyperplasia and hepatic hemangioma." Gastroenterology 97 (1989): 154-7
75. Tavani A, Negri E, Parazzini F, Franceschi S, La Vecchia C "Female hormone utilisation and risk of hepatocellular carcinoma." Br J Cancer 67 (1993): 635-7
76. Gyorffy EJ, Bredfeldt JE, Black WC "Transformation of hepatic cell adenoma to hepatocellular carcinoma due to oral contraceptive use." Ann Intern Med 110 (1989): 489-90
77. Le Bail B, Jouhanole H, Deugnier Y, Salame G, Pellegrin JL, Saric J, Balabaud C, Bioulac-Sage P "Liver adenomatosis with granulomas in two patients on long-term oral contraceptives." Am J Surg Pathol 16 (1992): 982-7
78. Lidegaard O "Oral contraceptives, pregnancy and the risk of cerebral thromboembolism: the influence of diabetes, hypertension, migraine and previous thrombotic disease." Br J Obstet Gynaecol 102 (1995): 153-9
79. Beaumont V, Lemort N, Beaumont JL "Oral contraceptives, sex steroid-induced antibodies and vascular thrombosis: results from 1318 cases." Eur Heart J 12 (1991): 1219-24
80. Key JD, Hammill WW, Everett L "Pulmonary embolus in an adolescent on oral contraceptives." J Adolesc Health 13 (1992): 713-5
81. Ushiroyama T, Okamoto Y, Toyoda K, Sugimoto O "A case of panic disorder induced by oral contraceptive." Acta Obstet Gynecol Scand 71 (1992): 78-80
82. Deci PA, Lydiard RB, Santos AB, Arana GW "Oral contraceptives and panic disorder." J Clin Psychiatry 53 (1992): 163-5
83. Iskander MK, Khan M "Chorea as the initial presentation of oral contraceptive related systemic lupus erythematosus." J Rheumatol 16 (1989): 850-1
84. Julkunen H, Kaaja R, Jouhikainen T, Teppo AM, Friman C "Malignant hypertension and antiphospholipid antibodies as presenting features of SLE in a young woman using oral contraceptives." Br J Rheumatol 30 (1991): 471-2
85. Townend JN, Roberts DH, Jones EL, Davies MK "Fatal pulmonary venoocclusive disease after use of oral contraceptives." Am Heart J 124 (1992): 1643-4
86. Omdal R, Roalso S "Chorea gravidarum and chorea associated with oral contraceptives-- diseases due to antiphospholipid antibodies?" Acta Neurol Scand 86 (1992): 219-20
More about Zovia 1/50 (ethinyl estradiol / ethynodiol)
Related treatment guides
Disclaimer: Every effort has been made to ensure that the information provided is accurate, up-to-date and complete, but no guarantee is made to that effect. In addition, the drug information contained herein may be time sensitive and should not be utilized as a reference resource beyond the date hereof. This material does not endorse drugs, diagnose patients, or recommend therapy. This information is a reference resource designed as supplement to, and not a substitute for, the expertise, skill , knowledge, and judgement of healthcare practitioners in patient care. The absence of a warning for a given drug or combination thereof in no way should be construed to indicate safety, effectiveness, or appropriateness for any given patient. Drugs.com does not assume any responsibility for any aspect of healthcare administered with the aid of materials provided. The information contained herein is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. If you have questions about the substances you are taking, check with your doctor, nurse, or pharmacist.