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Effect of methyldopa on prolactin serum concentration

Comparison between normal and sustained-release formulations

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Summary

In a group of ten hypertensive patients, the effects of methyldopa administration in two different formulations on serum prolactin (PRL) were studied. A single oral dose of normal release methyldopa significantly increased serum prolactin levels, peak concentrations occurring 3 to 6 h after drug administration. On the contrary, administration of sustained release methyldopa at the same dose was only followed by slight and not significant fluctuations in prolactin plasma levels. Both formulations produced a significant decrease of systolic and diastolic blood pressures, without significant differences between sustained and normal release methyldopa effects.

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References

  1. Alexander WD, Evans JI (1975) Side effects of methyldopa (Letter). Br Med J 2: 501

    Google Scholar 

  2. Arze RS, Ramos JM, Rashid HU, Kerr DNS (1981) Amenorrhoea, galactorrhoea, and hyperprolactinaemia induced by methyldopa. Br Med J 283: 194

    Google Scholar 

  3. Baitsch G, Elsasser J, Cocco G, Cornelli U (1985) Antihypertensive activity of a new formulation of methyldopa. Med Prax 6: 33–48

    Google Scholar 

  4. Bulpitt CJ, Dollery CT (1973) Side effects of hypotensive agents evaluated by a self-administered questionnaire. Br Med J 3: 485–490

    Google Scholar 

  5. Horwitz D, Pettinger WA, Orvis H, Thomas RE, Sjoerdsma A (1966) Effects of methyldopa in fifty hypertensive patients. Clin Pharmacol Ther 8: 224–234

    Google Scholar 

  6. Johnson P, Kitchin AH, Lowther CP, Turner RWD (1966) Treatment of hypertension with methyldopa. Br Med J 1: 133–137

    Google Scholar 

  7. Kirk RE (1968) Experiment design: procedures for the behavioural sciences. Brooks/Cole, Belmont

    Google Scholar 

  8. Kopin I (1968) False adrenergic transmitters. Ann Rev Pharmacol 8: 377–383

    Google Scholar 

  9. MacLeod RM (1976) Regulation of prolactin secretion. In: Martini L, Ganong WF (eds) Frontiers in neuroendocrinology. Raven, New York

    Google Scholar 

  10. MacLeod RM, Lehmeyer JE (1974) Studies on the mechanism of the dopamine-mediated inhibition of prolactin secretion. Endocrinology 94: 1077–1085

    Google Scholar 

  11. Meites J (1967) Control of mammary growth and lactation. In: Martini L, Ganong WF (eds) Neuroendocrinology. Academic, New York

    Google Scholar 

  12. Newman RJ, Salerno HR (1974) Sexual dysfunction due to methyldopa (Letter). Br Med J 4: 106

    Google Scholar 

  13. Pettinger WA, Horwitz D, Sjoerdsma A (1963) Lactation due to methyldopa. Br Med J 1: 1460–1463

    Google Scholar 

  14. Steiner J, Cassar J, Mashiter K, Dawes I, Russell Fraser T, Breckenridge A (1976) Effects of methyldopa on prolactin and growth hormone. Br Med J 1: 1186–1188

    Google Scholar 

  15. Turkington RW (1972) Prolactin secretion in patients treated with various drugs. Arch Intern Med 130: 349–354

    Google Scholar 

  16. Vaidya RA, Vaidya AB, Van Woert MH, Kase NG (1970) Galactorrhea and Parkinson-like syndrome: an adverse effect of a-methyldopa. Metabolism 19: 1068–1071

    Google Scholar 

  17. Wiggins JF, Sved AF, Fernstrom JD (1980) Effects of alpha-methyldopa and its metabolites on prolactin release: in vivo and in vitro studies. J Pharmacol Exp Ther 212: 304–308

    Google Scholar 

  18. Zavisca FG, Breau AP, Wurtman RJ (1979) Mechanism of action of methyldopa in the rat. Role of 3-0-methylated metabolites. Circ Res 45: 684–690

    Google Scholar 

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Baldini, M., Cornelli, U., Molinari, M. et al. Effect of methyldopa on prolactin serum concentration. Eur J Clin Pharmacol 34, 513–515 (1988). https://doi.org/10.1007/BF01046712

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  • DOI: https://doi.org/10.1007/BF01046712

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