Methyldopa is a medication that is sometimes used to control hypertension; however, it is not a first-line treatment due to the various health risks associated with its use.
Coenzyme Q10 (CoQ10)
There is some evidence that methyldopa might impair the body's ability to manufacture the substance coenzyme Q
supplements might make sense as a general precaution, but no specific benefit has been established.
Iron supplements can interfere with the absorption of methyldopa, so make sure you do not take iron during the 2 hours before or after your methyldopa dose.
Kishi H, et al. Bioenergetics in clinical medicine. III. Inhibition of coenzyme Q
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Campbell NR and Hasinoff BB. Iron supplements: A common cause of drug interactions.
Br J Clin Pharmacol
31: 251–255, 1991.
Campbell N, Paddock V, and Sundaram R. Alteration of methyldopa absorption, metabolism, and blood pressure control caused by ferrous sulfate and gluconate.
Clin Pharmacol Ther
43: 381–386, 1988.