RT Journal A1 Noble RE T1 EFfect of cyproheptadine on appetite and weight gain in adults JF JAMA JO JAMA YR 1969 FD September 29 VO 209 IS 13 SP 2054 OP 2055 DO 10.1001/jama.1969.03160260058019 UL http://dx.doi.org/10.1001/jama.1969.03160260058019 AB Cyproheptadine (Periactin) hydrochloride, a histamine and serotonin antagonist, was compared with placebo for effectiveness in producing appetite stimulation and weight gain in healthy, underweight, adults. Increase in appetite and weight was significantly greater statistically in those who received cyproheptadine. Drowsiness was a common transient side effect of cyproheptadine. There were no significant alterations in laboratory values following cyproheptadine administration.