The Food and Drug Administration (FDA) is warning consumers not to buy or use Mayhem, a dietary supplement marketed to increase appetite and muscle growth after it was found to contain an undeclared corticosteroid and antihistamine.

An FDA laboratory analysis revealed Mayhem capsules to contain dexamethasone and cyproheptadine. Dexamethasone is a corticosteroid that can hinder a person’s ability to fight infections, raise blood sugar levels, and cause muscle injuries or psychiatric effects. Corticosteroids can also suppress the adrenal gland and result in withdrawal symptoms following abrupt discontinuation. Cyproheptadine is an antihistamine that can cause drowsiness and impair mental alertness.

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Consumers using Mayhem are to consult with their healthcare providers to safely discontinue use of this product.

Mayhem is manufactured by Chaotic-Labz and is supplied in 60-count bottles. It is sold in some retail stores and various websites.

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