Mesoridazine use while Breastfeeding

Summary of Use during Lactation

Mesoridazine is no longer marketed in the United States. Because there is no published experience with mesoridazine during breastfeeding, other antipsychotic agents are preferred.

Drug Levels

Maternal Levels. Relevant published information was not found as of the revision date.

Infant Levels. Relevant published information was not found as of the revision date.

Effects in Breastfed Infants

Relevant published information was not found as of the revision date.

Effects on Lactation and Breastmilk

Phenothiazines cause galactorrhea in 26 to 40% of female patients.[1,2] Hyperprolactinemia appears to be the cause of the galactorrhea.[3-5] The hyperprolactinemia is caused by the drug's dopamine-blocking action in the tuberoinfundibular pathway.[6] The prolactin level in a mother with established lactation may not affect her ability to breastfeed.

Alternate Drugs to Consider

Haloperidol, Olanzapine, Quetiapine, Risperidone

References

1.

Polishuk WZ, Kulcsar S. Effects of chlorpromazine on pituitary function. J Clin Endocrinol Metab 1956;16:292-3. [PubMed: 13286329]

2.

Hooper JH, Jr, Welch VC, Shackelford RT. Abnormal lactation associated with tranquilizing drug therapy. JAMA 1961;178:506-7. [PubMed: 14448766]

3.

Turkington RW. Prolactin secretion in patients treated with various drugs: Phenothiazines, tricyclic antidepressants, reserpine, and methyldopa. Arch Intern Med 1972;130:349-54. [PubMed: 4560178]

4.

Turkington RW. Serum prolactin levels in patients with gynecomastia. J Clin Endocrinol Metab 1972;34:62-6. [PubMed: 5061776]

5.

Meltzer HY, Fang VS. The effect of neuroleptics on serum prolactin in schizophrenic patients. Arch Gen Psychiatry 1976;33:279-86. [PubMed: 1259521]

6.

Maguire GA. Prolactin elevation with antipsychotic medications: Mechanisms of action and clinical consequences. J Clin Psychiatry 2002;63 (Suppl 4):56-62. [PubMed: 11913677]

Substance Name

Mesoridazine

CAS Registry Number

5588-33-0

Drug Class

Breast Feeding

Lactation

Milk, Human

Antipsychotic Agents

Phenothiazines