
If you are over 60 years of age, you may be more likely to experience side effects from cyproheptadine. You may require a lower dose of this medication.

An underweight individual may use periactin to stimulate his appetite in order to gain weight. This usage of the drug in this way has not been approved by the Food and Drug Administration.

Periactin has been used by some doctors as an appetite stimulant to help underweight individuals gain weight. This indication has not yet been approved by the U.S. Food and Drug Administration.

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