In interviews with 53 cluster headache patients who used psilocybin or LSD, most reported benefits: 22 of 26 psilocybin users said it aborted attacks, 25 of 48 psilocybin users and 7 of 8 LSD users reported ending a cluster period, and 18 of 19 psilocybin users and 4 of 5 LSD users said it extended remission periods. The authors suggest further research on these substances for cluster headache is warranted.
Among 169 gay and bisexual men at New York City dance clubs, about one-third reported using MDMA at least monthly. MDMA use was strongly and significantly linked to recent unprotected anal intercourse, and this link held even after accounting for age, ethnicity, and other drug use including alcohol. The authors suggest MDMA abuse and its association with high-risk sexual behaviors represent important but unexplored public health problems for some gay and bisexual men.