Factors affecting the enterohepatic circulation of oral contraceptive steroids

Active Transport of Sodium as the Source of Electric Current in the Short‐circuited Isolated Frog Skin.

1951 • 2,379 citations

POLYMORPHIC HYDROXYLATION OF DEBRISOQUINE IN MAN

1977 • 1,196 citations

Christmas Disease

1952 • 424 citations

Extrahepatic Metabolism of Drugs and other Foreign Compounds

1981 • 230 citations

Defective Oxidation of Drugs

1982 • 182 citations

Clinical Pharmacokinetics of Oral Contraceptive Steroids

1983 • 173 citations

An investigation of the pharmacokinetics of ethynylestsadiol in women using badioimmunoassay

1979 • 133 citations

The interaction of phenobarbital and other anticonvulsants with oral contraceptive steroid therapy

1980 • 131 citations

A family study of genetic and environmental factors determining polymorphic hydroxylation of debrisoquin

1985 • 127 citations

Evaluation of Committee on Safety of Medicines yellow card reports on oral contraceptive‐drug interactions with anticonvulsants and antibiotics.

1988 • 107 citations

The pharmacokinetics of levonorgestrel and ethynylestradiol in women — Studies with ovran and ovranette

1981 • 101 citations

Evidence for an enzymatic defect in the 4‐hydroxylation of debrisoquine by human liver.

1981 • 93 citations

Pregnancy attributable to interaction between tetracycline and oral contraceptives.

1980 • 92 citations

The effect of rifampicin oh the pharmacokinetics of ethynylestradiol in women

1980 • 89 citations

The gut wall metabolism of ethinyloestradiol and its contribution to the pre‐systemic metabolism of ethinyloestradiol in humans.

1982 • 81 citations

Kinetics of norethindrone in women; II. Single‐dose kinetics

1978 • 76 citations

Points from letters: Drug interaction with oral contraceptives

1975 • 74 citations

The biliary and urinary metabolites of [3H]17α-ethynylestradiol in women

1983 • 74 citations

Rapid Stick Method for Determining Blood-glucose Concentration

1965 • 72 citations

A study of interaction of low-dose combination oral contraceptive with ampicillin and metronidazole

1980 • 71 citations

Drug Interactions with Oral Contraceptives

1986 • 68 citations

Intestinal metabolism of ethinyloestradiol and paracetamol in vitro: studies using Ussing chambers.

1987 • 67 citations

The effect of ampicillin on oral contraceptive effectiveness.

1980 • 64 citations

The effects of ampicillin oral contraceptive steroids in women.

1982 • 61 citations

The urinary metabolites of 17α-ethynylestradiol-9α,11-3H in women chromatographic profiling and identification of ethynyl and non-ethynyl compounds

1975 • 61 citations

Effect of chloroquine and primaquine on antipyrine metabolism.

1983 • 57 citations

Serum levels of 3-keto-desogestrel after oral administration of desogestrel and 3-keto-desogestrel

1986 • 56 citations

The bioavailability of ethinyloestradiol and levonorgestrel in patients with an ileostomy

1986 • 55 citations

Identification and measurement by gas chromatography-mass spectrometry of norethindrone and metabolites in human urine and blood

1977 • 51 citations

Reduction of the enterohepatic circulation of norethisterone by antibiotics in the rat: Correlation with changes in the gut flora

1980 • 51 citations

Fate of Ingested Radiolabeled Ethynylestradiol and Its 3-Cyclopentyl Ether in Patients with Bile Fistulas

1969 • 50 citations

The effect of cotrimoxazole on oral contraceptive steroids in women

1983 • 45 citations

Talampicillin: a new derivative of ampicillin.

1976 • 45 citations

Comparative in vitro effects and in vivo kinetics of antithyroid drugs

1980 • 38 citations

Pharmacokinetics of mestranol in man in relation to its oestrogenic activity

1974 • 38 citations

The in vitro metabolism of ethinyloestradiol, mestranol and levonorgestrel by human jejunal mucosa.

1981 • 38 citations

Human urinary and liver conjugates of 17α-ethynylestradiol

1976 • 35 citations

Accumulation of norethindrone and individual metabolites in human plasma during short- and long-term administration of a contraceptive dosage

1979 • 31 citations

Interactions between oral contraceptive steroids and broad-spectrum antibiotics

1986 • 30 citations

Pharmacokinetics of contraceptive steroids in patients with cystic fibrosis.

1987 • 30 citations

Oxazepam pharmacokinetics in patients with epilepsy treated long‐term with phenytoin alone or in combination with phenobarbitone.

1983 • 27 citations

The early years of the penicillin discovery

1979 • 25 citations

URINARY METABOLITES OF DL-NORGESTREL IN WOMEN

1973 • 21 citations

Ring A Oxidation of 17α-Ethynylestradiol in Man

1974 • 18 citations

Analysis of isomeric ethynylestradiol glucuronides in urine

1981 • 18 citations

The presence of -, - and norgestrel and their metabolites in the plasma of women

1975 • 17 citations

Increased Glucuronidation of Bilirubin in Man and Rat by Administration of Antipyrine (Phenazone)

1974 • 17 citations

Pharmacokinetics of oral contraceptive steroids following the administration of the antimalarial drugs primaquine and chloroquine

1984 • 10 citations

Variability in conjugates of ethynylestradiol produced by in vitro incubation of human liver tissue

1977 • 9 citations

Synthesis of 17β-d-glucopyranosiduronic acid of 17α-ethynylestradiol

1978 • 8 citations