Three opioid antagonists, naloxone, naltrexone, and nalmefene, are currently approved for human use. Naloxone and nalmefene have been approved for parenteral administration and are used in the ...

Sexual problems in men may be linked to low levels of the hormone prolactin, according to a new study. The finding is perhaps surprising because experts have traditionally thought prolactin, which ...

In both visits (baseline and follow-up), study procedures were identical as described below. A detailed medical history was recorded for every subject, using questionnaires regarding demographic and ...

A laboratory abnormality during the evaluation of erectile dysfunction in a young man leads clinicians to identify ...

Prolactin is a hormone produced by the pituitary gland. High levels can affect sexual and reproductive health. They may result from medication use, health conditions, or prolactinomas. Prolactin plays ...

Prolactin is a hormone produced by the pituitary gland, which is located near the bottom of the brain. Its production is controlled by other hormones called prolactin-inhibiting factors, which include ...

Whether the withdrawal of treatment in patients with nontumoral hyperprolactinemia, microprolactinomas, or macroprolactinomas is safe and effective has been unclear. We performed an observational, ...

Elevated prolactin levels can cause symptoms like irregular periods and nipple discharge. Low prolactin levels are less common and can cause a reduced milk supply in lactating individuals. High ...

Hyperprolactinemia that is not associated with gestation or the puerperium is usually due to tumors in the anterior pituitary gland and occurs occasionally in hereditary multiple endocrine neoplasia ...

Nursing poses major metabolic demands on mothers, to which they respond by eating more and saving energy to sustain milk production. There are significant hormonal changes during lactation, but how ...