TITLE: Treatment of migraine during pregnancy and lactation. AUTHOR: Miles CB SOURCE: S D J Med 1995 Nov;48(11):373-7 NLM CIT. ID: 96108153 AUTHOR AFFILIATION: Neurology Associates, Sioux Falls, SD, USA. ABSTRACT: Migraine onset, frequency and severity are influenced by hormonal changes throughout the various female reproductive life events, including pregnancy. Migraine may worsen during the first trimester, but usually improves thereafter. The treatment of migraine during pregnancy and lactation is difficult because of the risks to the fetus and newborn. This paper reviews migraine throughout the female reproductive life events, as well as the acute and prophylactic treatment of the pregnant and lactating migraineur. TITLE: Sumatriptan (Imitrex) transport by the human placenta. AUTHOR: Schenker S; Yang Y; Perez A; Henderson GI; Lee MP SOURCE: Proc Soc Exp Biol Med 1995 Dec;210(3):213-20 NLM CIT. ID: 96128032 AUTHOR AFFILIATION: Department of Medicine, University of Texas Health Science Center at San Antonio 78284-7878, USA. ABSTRACT: Sumatriptan (Imitrex), a selective 5-hydroxytryptamine receptor agonist, has been found to be of therapeutic benefit in the acute management of migraine. There is no information on the transfer of this agent across the human placenta. Accordingly, the current study assessed the transport of this drug across the normal term human placenta, using the isolated perfused single cotyledon technique. We found that only about 15% of a single dose of the agent placed in the maternal reservoir crossed into the fetal compartment over 4 hr. Given the average elimination half-life of 2 hr for sumatriptan, it is evident that only very small amounts of the agent will cross from mother to fetus after single doses of Imitrex. Only the parent drug entered the fetal compartment. Metabolites were not detected in the perfusates, but there was evidence of some metabolism of sumatriptan in the placenta. The nature of the metabolites has not been determined. The mechanism of transfer of the drug across the placenta is passive (i.e., the clearance is similar to L-glucose which is passively transported), the rate of transfer is equal in both directions (maternal to fetal and in the reverse), and the drug does not cross into the fetus against a concentration gradient. This passive transport of sumatriptan across the placenta is consistent with its molecular weight, its water solubility, and its slow penetration across the blood-brain barrier in experimental animals. TITLE: Headaches and women: treatment of the pregnant and lactating migraineur. AUTHOR: Silberstein SD SOURCE: Headache 1993 Nov-Dec;33(10):533-40 NLM CIT. ID: 94124236 AUTHOR AFFILIATION: Comprehensive Headache Center, Germantown Hospital and Medical Center, Philadelphia, PA 19144. ABSTRACT: Migraine is a hormonally sensitive episodic headache disorder which may worsen during the first trimester, but usually improves during later pregnancy. Its treatment can be difficult because of the risks of injury to the fetus and newborn. These risks include teratogenicity, embryo mortality, fetal growth abnormalities, and perinatal effect. This paper reviews the effects of drugs on the fetus and newborn, their FDA classification, and their use during both pregnancy and lactation. Specific recommendations are given. TITLE: Migraine and pregnancy. AUTHOR: Welch KM SOURCE: Adv Neurol 1994;64:77-81 NLM CIT. ID: 94120986