Bleeding and ovulation control with use of a small contraceptive vaginal ring releasing levonorgestrel and estradiol

J Toivonen, P Lähteenmäki, T Luukkainen - Contraception, 1979 - Elsevier
Levonorgestrel and estradiol releasing contraceptive vaginal rings (CVR) with an outer
diameter of 50 mm were used by twenty women. The treatment was given in three-week …

The use of a contraceptive vaginal ring governed by the pattern of individual uterine bleeding

J Toivonen, P Lähteenmäki, T Luukkainen - Contraception, 1979 - Elsevier
Contraceptive vaginal rings (CVR) releasing levonorgestrel and estradiol were used for
contraceptive purposes in eight women. They were instructed to remove the CVR for five …

Clinical performance and endocrine profiles with contraceptive vaginal rings containing a combination of estradiol andd-norgestrel

DR Mishell Jr, DE Moore, S Roy, PF Brenner… - American journal of …, 1978 - Elsevier
Contraceptive vaginal rings (CVR's) impregnated with a combination ofd-norgestrel and
estradiol were studied in a group of 10 subjects: five for three cycles and five for six cycles …

Patterns of ovulation and bleeding with a low levonorgestrel-releasing intrauterine device

CG Nilsson, P Lähteenmäki, T Luukkainen - Contraception, 1980 - Elsevier
Patterns of bleeding and plasma concentrations of levonorgestrel, progesterone, estradiol,
LH and FSH were studied in ten volunteers who had a levonorgestrel-releasing IUD inserted …

The effect of vaginal administration of low-dose oral contraceptive tablets on human ovulation

AR Souka, H El Sokkary, M Kamel, M Hassan - Contraception, 1986 - Elsevier
The effect of vaginal administration of a low dose combined oral contraceptive pill containing
0.15 mg levonorgestrel and 0.03 mg ethinyl oestradiol was studied in twenty women for a …

A clinical pharmacological study of a new type of vaginal delivery system for levonorgestrel

BM Landgren, E Johannisson, S Xing, AR Aedo… - Contraception, 1985 - Elsevier
The pharmacokinetic and pharmacodynamic effects of a new type of levonorgestrel-
releasing vaginal device (with an in vitro release rate of 25 μg/24 h) were studied in a group …

Clinical performance and endocrine profiles with contraceptive vaginal rings containing a combination of estradiol and D-norgestrel

S Mehta, UM Joshi, GM Sankolli, A Adatia, UM Donde… - Contraception, 1981 - Elsevier
Contraceptive vaginal rings (CVRs) impregnated with a combination of estradiol and d-
norgestrel were studied in 39 women. The rings were inserted as three weeks 'in'and one …

Contraceptive rings; self-administered treatment governed by bleeding

A Victor, EDB Johansson - Contraception, 1977 - Elsevier
In an attempt to overcome bleeding problems and reduce the risk of ovulation during
treatment, a new treatment schedule for contraceptive Silastic intravaginal rings (IVR) was …

A multicenter study of levonorgestrel-estradiol contraceptive vaginal rings. III-Menstrual patterns. An international comparative trial.

I Sivin, DR Mishell Jr, A Victor, S Diaz… - …, 1981 - europepmc.org
Menstrual events among users of contraceptive vaginal rings (CVRs), releasing
levonorgestrel and estradiol, were studied in comparison with a combined oral …

Pituitary and ovarian function and clinical performance during the use of a levonorgestrel-releasing intracervical contraceptive device

H Kurunmäki, J Toivonen, PLA Lähteenmäki… - Contraception, 1984 - Elsevier
A levonorgestrel-releasing intracervical device (ICD) was inserted postmenstrually to twenty-
one voluntary women. Eight subjects gave blood samples twice a week during the initial …