| Date | Grid | Clue | Author |
| Wed Mar 27, 2024 | 39D | Timothy Leary's study | Rich Katz |
| Sun Feb 18, 2024 | 79A | Subject of 1960s-'70s addiction research | Sid Sivakumar |
| Thu Feb 15, 2024 | 55D | "Windowpane" | Teddy Katz and Rich Katz |
| Tue Jan 2, 2024 | 5D | It might cause someone to trip | Jeffrey Martinovic |
| Mon Dec 11, 2023 | 50A | Acid (24) | Luke K. Schreiber |
| Sat Dec 2, 2023 | 8D | Stuff in microdots | Royce Ferguson |
| Tue Nov 21, 2023 | 66A | Drug studied by Timothy Leary | Kevin Christian and Andrea Carla Michaels |
| Wed Oct 25, 2023 | 58D | Drug that's "dropped" | Aimee Lucido |
| Wed Oct 11, 2023 | 62D | Alternative to mushrooms (3) | Miranda Kany |
| Fri Sep 22, 2023 | 7A | It's mind-altering | Rafael Musa and Michael Lieberman |
| Sat Aug 26, 2023 | 11A | This might change your mind | Adrian Johnson |
| Tue Jun 6, 2023 | 9A | Trippy drug (4) | Daniel Jaret |
| Sun Mar 19, 2023 | 1D | Supposed influence on Pink Floyd's "The Piper at the Gates of Dawn" | Robert Ryan |
| Sat Mar 18, 2023 | 26D | Inits. for a trip (2) | Ada Nicolle |
| Thu Mar 16, 2023 | 65D | Psycho- pharmacology inits. | Rebecca Goldstein |
| Mon Nov 28, 2022 | 30D | Acid that's "dropped" | Chloe Revery |
| Wed Oct 12, 2022 | 20A | Inspiration for some psychedelic music | Drew Schmenner |
| Thu Aug 11, 2022 | 22D | Tab for a trip | David Tuffs |
| Sun Jul 10, 2022 | 4D | Drug that can be microdosed | Christina Iverson and Scott Hogan |
| Tue Jun 14, 2022 | 59D | "Acid" (24) | Robert Won |
| Wed Jun 1, 2022 | 61D | Psilocybin alternative, for short | Chase Dittrich |
| Sun May 29, 2022 | 28D | Tab inits. | Daniel Bodily and Jeff Chen |
| Mon Mar 14, 2022 | 44D | Psychedelic inits. | Stephen Hiltner |
| Sun Mar 13, 2022 | 105A | Letters that might change your mind? | Christina Iverson and Katie Hale |
| Fri Jan 28, 2022 | 55A | Some trip on it | Jem Burch |
| Sat Dec 25, 2021 | 28A | Subject of some MK-Ultra experiments | Johan Vass |
| Tue Dec 21, 2021 | 57D | It may give you visuals | Guilherme Gilioli |
| Wed Dec 15, 2021 | 64A | Subject of Netflix's "Have a Good Trip" | Jessie Bullock and Ross Trudeau |
| Mon Dec 13, 2021 | 22A | Psychedelic substance | Tomas Spiers |
| Wed Nov 24, 2021 | 65A | Drug in the 1980 film "Altered States" | Brandon Koppy |
| Thu Oct 28, 2021 | 44D | What the D.E.A. might keep tabs on? | Alan Massengill |
| Sat Sep 25, 2021 | 54D | Drug known by its German initials | Adam Simon Levine |
| Thu Aug 12, 2021 | 48A | It was once sold medically under the commercial name Delysid | Jake Halperin |
| Thu Jun 3, 2021 | 39A | Inits. for a trip (2) | Kyra Wilson and Sophia Maymudes |
| Tue May 18, 2021 | 31A | Trippy drug (4) | Margaret Seikel |
| Fri Apr 2, 2021 | 56D | Colorless, odorless drug | Kyra Wilson and Sophia Maymudes |
| Mon Mar 8, 2021 | 40D | '60s hallucinogenic (2) | Eric Bornstein |
| Fri Jan 22, 2021 | 58D | Cause of a trip (2) | Daniel Larsen |
| Tue Dec 15, 2020 | 22D | "Acid" (24) | Adam Vincent |
| Thu Dec 10, 2020 | 39A | What "Lucy in the Sky With Diamonds" supposedly isn't about | Jack Murtagh |
| Fri Nov 27, 2020 | 21A | Alternative to mushrooms (3) | Robyn Weintraub |
| Wed Nov 11, 2020 | 8D | Inspiration for the Beatles' "Day Tripper" | Alex Bajcz |
| Wed Sep 23, 2020 | 9D | It's dropped before a trip | Margit Christenson |
| Sun Sep 20, 2020 | 1D | Counterculture drug, for short | Sam Trabucco |
| Wed Jul 1, 2020 | 23D | Start of a trip, for short? | Amanda Rafkin and Ross Trudeau |
| Fri May 22, 2020 | 62D | Tab that's paid for illegally? | Hal Moore |
| Mon Apr 6, 2020 | 64D | Drug to trip on | Andrea Carla Michaels and Brian Thomas |
| Tue Jan 28, 2020 | 61D | You'll trip if you drop it | Trenton Charlson |
| Tue Jan 21, 2020 | 25A | Hit from the '60s? (2) | Carl Larson |
| Wed Sep 11, 2019 | 67A | Acid (24) | Ned White |
| Tue Sep 3, 2019 | 33A | You can take a trip with this without traveling | Evan Kalish |
| Thu Jul 18, 2019 | 15D | Pitcher Dock Ellis claimed to have used this before throwing a no-hitter in 1970 | Matthew Sewell |
| Sat Jun 29, 2019 | 21D | Inspiration for Jefferson Airplane's "White Rabbit" | Kameron Austin Collins |
| Mon Feb 18, 2019 | 23D | '60s hallucinogenic (2) | Leslie Rogers and Andrea Carla Michaels |
| Thu Jan 3, 2019 | 55D | Subject of many '60s hits? | Timothy Polin |
| Mon Dec 10, 2018 | 1D | Timothy Leary's drug | Alex Eylar |
| Tue Aug 14, 2018 | 62D | Trippy drug (4) | Andy Kravis and Erik Agard |
| Sat Jul 21, 2018 | 34D | Cause of some flashbacks, for short | Jason Flinn |
| Sun Jun 17, 2018 | 82A | Subj. of "The Electric Kool-Aid Acid Test" | Amanda Chung, Karl Ni and Erik Agard |
| Mon Jun 4, 2018 | 5A | Trippy drug (4) | Zhouqin Burnikel |
| Wed Feb 28, 2018 | 44D | Subject of a repeated warning at Woodstock | Peter A. Collins |
| Tue Jan 23, 2018 | 69A | Subtext of Jefferson Airplane's "White Rabbit" (2) | Jim Hilger |
| Wed Dec 13, 2017 | 34D | Drug taken in tabs | Benjamin Kramer |
| Mon Nov 27, 2017 | 60D | Trip inducer, in brief | Kevin Christian |
| Thu Nov 9, 2017 | 46D | Acid (24) | Bruce Haight |
| Mon Nov 6, 2017 | 65A | Psychedelic drug, briefly | Max Lauring and Benjamin Lauring |
| Wed Oct 25, 2017 | 1D | Drug referenced in "The Joyous Cosmology" | Jules P. Markey |
| Mon Sep 11, 2017 | 10A | The drug acid, by another name | Erik Agard and Paolo Pasco |
| Sun Aug 6, 2017 | 123A | Deadhead's hits? | Patrick Berry |
| Sat Jul 29, 2017 | 38A | Stuff "tested" in the 1960s' Acid Tests | Erik Agard |
| Fri Jun 2, 2017 | 6A | So-called "battery acid" | John Guzzetta and Michael Hawkins |
| Mon Apr 24, 2017 | 4D | It was often dropped in the '60s | Gary Cee |
| Tue Feb 14, 2017 | 30D | "Acid" (24) | Daniel Larsen |
| Sat Nov 19, 2016 | 31D | Something taken in preparation for a trip | Mary Lou Guizzo and Jeff Chen |
| Tue Oct 25, 2016 | 18A | Drug for Timothy Leary | John E. Bennett |
| Mon Sep 19, 2016 | 65D | Drug for tripping | Zhouqin Burnikel |
| Sun Sep 11, 2016 | 42D | Acid (24) | Ned White and George Barany |
| Sat Sep 10, 2016 | 33A | "Tabs" | Peter Wentz |
| Thu Jul 28, 2016 | 58A | Subtext of Jefferson Airplane's "White Rabbit" (2) | Adam G. Perl |
| Thu Mar 31, 2016 | 29D | It might be taken before a trip | Ellen Leuschner and Jeff Chen |
| Mon Mar 21, 2016 | 1A | Psychedelic drug (4) | Michael Hawkins |
| Sun Jan 10, 2016 | 15D | Acid (24) | Patrick Merrell |
| Tue Dec 15, 2015 | 48A | Hallucination producer | David Levinson Wilk |
| Mon Nov 2, 2015 | 4D | '60s trip inducer | Loren Muse Smith and Andrea Carla Michaels |
| Sat Jul 11, 2015 | 9D | Hit from the '60s? (2) | Joe DiPietro |
| Wed May 27, 2015 | 30A | Drug ingested in "Easy Rider" | Jim Quinlan |
| Thu Apr 23, 2015 | 60D | Trip cause | David Steinberg and Bruce Leban |
| Sat Apr 18, 2015 | 27A | Some dropped tabs | Damon J. Gulczynski |
| Wed Apr 15, 2015 | 61D | C20H25N3O, commonly | Joel Fagliano |
| Mon Feb 2, 2015 | 43D | "Turn on, tune in, drop out" drug | Jeffrey Wechsler |
| Sun Jan 4, 2015 | 117D | You can trip on it | Finn Vigeland |
| Tue Nov 11, 2014 | 43A | Acid (24) | James Mulhern |
| Sun Oct 26, 2014 | 111D | Drug sold in microdots | Caleb Emmons |
| Thu Oct 16, 2014 | 23A | "Fear and Loathing in Las Vegas" drug | John Farmer |
| Sun Oct 12, 2014 | 44D | Subject of some '50s-'60s experiments | Pawel Fludzinski |
| Thu Aug 14, 2014 | 1D | Flashback cause, maybe | Jason Flinn |
| Wed Aug 13, 2014 | 57A | Something to trip on | Dan Schoenholz |
| Tue Jul 15, 2014 | 16D | One may trip on it (2) | Zhouqin Burnikel |
| Tue Jun 3, 2014 | 62D | Acid (24) | Susan Gelfand |
| Mon May 26, 2014 | 67A | It was dropped at Woodstock (2) | Dan Margolis |
| Fri Feb 14, 2014 | 43A | Agent of psychedelic therapy | Bruce Haight |
| Sun Dec 1, 2013 | 18D | "Purple haze" | Alan DerKazarian |
| Thu Nov 21, 2013 | 71A | Acid (24) | Jules P. Markey |
| Sun Nov 3, 2013 | 55D | Psychedelic drug (4) | Andy Kravis and Victor Barocas |
| Thu Oct 17, 2013 | 10D | Trip inits. | Gary J. Whitehead |
| Wed Sep 11, 2013 | 66A | "The Joyous Cosmology" subj. | Patrick Blindauer |
| Sat Aug 17, 2013 | 43A | Means of changing one's mind | Ed Sessa |
| Sun Jul 7, 2013 | 18D | The U.S. banned it in 1968 | Joel Fagliano |
| Tue Jun 4, 2013 | 63D | It may be dropped when one trips | Kristian House |
| Sun May 12, 2013 | 104D | Cause of a trip (2) | David J. Kahn |
| Tue Apr 23, 2013 | 69A | Something you might trip on | Severin T. Nelson |
| Wed Nov 28, 2012 | 44D | "Dropped" drug (2) | Adam G. Perl |
| Mon Nov 5, 2012 | 50A | "Lucy in the Sky With Diamonds" subject, supposedly | Andrea Carla Michaels |
| Fri Oct 5, 2012 | 29D | Hits from the 1960s? | Patrick Berry |
| Sun Jul 15, 2012 | 106A | Acid (24) | Randolph Ross |
| Sun Jul 8, 2012 | 31A | Acid (24) | Joel Fagliano |
| Sat Jun 16, 2012 | 38A | Alternative to mushrooms (3) | Barry C. Silk |
| Sun Apr 8, 2012 | 122D | Onetime aid in psychotherapy | Daniel A. Finan |
| Mon Jan 30, 2012 | 50A | '60s "acid" | Francesco Trogu |
| Sun Jan 29, 2012 | 113A | It was dropped at Woodstock (2) | Ian Livengood |
| Fri Jan 27, 2012 | 58D | 54-Down for a trip | Joe Krozel |
| Thu Jan 5, 2012 | 63A | Acid (24) | Dan Schmiedeler |
| Tue Dec 6, 2011 | 68A | What the "turn on" part refers to in "Tune in, turn on, drop out" | Steven E. Atwood |
| Tue Apr 12, 2011 | 39A | "Dropped" drug (2) | Barry C. Silk |
| Tue Mar 15, 2011 | 36D | Trip producer (4) | Jeremy Newton |
| Sun Mar 13, 2011 | 121A | Acid (24) | Patrick Berry |
| Sun Mar 6, 2011 | 6D | "Turn On, Tune In, Drop Out" subject | David Levinson Wilk |
| Tue Feb 1, 2011 | 29D | Timothy Leary's turn-on (2) | Ron and Nancy Byron |
| Wed Sep 22, 2010 | 42D | It was dropped in the '60s (5) | Peter A. Collins |
| Fri Sep 17, 2010 | 55A | Subj. in "The Electric Kool-Aid Acid Test" | Jonah Kagan, Brown University '13 |
| Thu Sep 2, 2010 | 35D | Much-discussed initials of a 1967 Beatles song | Patrick Blindauer and Andrea Carla Michaels |
| Fri Jun 11, 2010 | 26A | Trip vehicle? | John Dunn |
| Sun Apr 18, 2010 | 7A | Trip preparation | Randolph Ross |
| Mon Jan 4, 2010 | 10D | '60s hallucinogen (2) | Paula Gamache |
| Thu Dec 17, 2009 | 23A | Subject of "Hofmann's Potion" | Francis Heaney and Patrick Blindauer |
| Tue Dec 15, 2009 | 65D | Tripper's turn-on (2) | Steve Dobis |
| Tue Oct 20, 2009 | 29D | Drug sold on blotting paper | Gary Cee |
| Sun Oct 4, 2009 | 8D | Deadhead's supply | Todd McClary |
| Mon Sep 14, 2009 | 11A | '60s hallucinogen (2) | Bernice Gordon |
| Tue Jul 7, 2009 | 7D | Source of a hippie's high | Lynn Lempel |
| Thu Dec 18, 2008 | 62D | Cause of tripping? | Michael Vuolo |
| Mon Oct 6, 2008 | 56D | Psychedelic drug (4) | Patrick Blindauer |
| Wed Sep 24, 2008 | 66A | Trip provider? | Lynn Lempel |
| Wed Jun 11, 2008 | 6D | One may trip on it (2) | Daniel Kantor |
| Fri Sep 21, 2007 | 39A | It'll change your mind | Paula Gamache |
| Tue Aug 14, 2007 | 56D | Psychedelic drug (4) | C. W. Stewart |
| Sun Jul 1, 2007 | 39D | A hallucinogen (2) | Nancy Salomon and Bill Zais |
| Wed Apr 25, 2007 | 42A | A hallucinogen (2) | John Farmer |
| Sun Oct 22, 2006 | 42D | Drug once available under the commercial name Delysid | Harvey Estes |
| Sun Sep 24, 2006 | 33A | What "Lucy in the Sky With Diamonds" may or may not be about | Mark Diehl and Kevin McCann |
| Sun Apr 16, 2006 | 12D | Dropped stuff | Mike Torch |
| Thu Dec 22, 2005 | 53D | Hallucinogen (2) | Elizabeth C. Gorski |
| Tue Nov 22, 2005 | 63D | Psychedelic of the 60's | Nancy Salomon |
| Sun Nov 20, 2005 | 52D | Narc's haul | Patrick Merrell |
| Sat Nov 5, 2005 | 8D | The U.S. banned it in 1967 | Patrick Berry |
| Sat Apr 9, 2005 | 19A | Trip producer (4) | Bob Peoples |
| Mon Jan 31, 2005 | 51A | Acid, in the 60's | Randall J. Hartman |
| Sat Jan 29, 2005 | 28A | Subject of some of 32-Down's writings | Patrick Berry |
| Wed Sep 15, 2004 | 28A | 60's trip cause | Alan Arbesfeld |
| Wed Aug 11, 2004 | 63D | Cause of many trips, once | Alan Arbesfeld |
| Mon May 17, 2004 | 59D | "Acid" (24) | Ethan Cooper |
| Wed Feb 11, 2004 | 5D | Something that's illegal to drop | Ethan Friedman |
| Mon Jan 26, 2004 | 20A | It made Leary bleary | Patrick Merrell |
| Mon Jan 19, 2004 | 66A | "Acid" (24) | Zach Jesse |
| Thu Jan 15, 2004 | 41D | Trip producer (4) | Patrick Merrell |
| Wed Nov 26, 2003 | 61D | Tripper's buy | Tyler Hinman |
| Fri Oct 24, 2003 | 52A | Source of some strange visions | Sherry O. Blackard |
| Wed Sep 24, 2003 | 11A | Acid (24) | Sheldon Benardo |
| Thu Aug 7, 2003 | 30D | It's taken for a trip | Patrick Berry |
| Tue Aug 5, 2003 | 44D | It was dropped in the 60's (5) | D. J. DeChristopher |
| Sun Feb 2, 2003 | 41D | It was dropped in the 60's (5) | Mark Danna |
| Sun Dec 8, 2002 | 57D | Acid (24) | Peter Gordon |
| Tue Sep 24, 2002 | 48D | Timothy Leary's turn-on (2) | Sherry O. Blackard |
| Tue Jul 30, 2002 | 29D | 60's turn-on (2) | Sherry O. Blackard |
| Thu May 30, 2002 | 55D | Flashback causer | Peter Gordon |
| Thu May 9, 2002 | 7D | It was dropped in the 60's (5) | Cathy Millhauser |
| Sat Mar 23, 2002 | 9D | Trip producer (4) | Adam Cohen |
| Sun Oct 21, 2001 | 7D | It can have you seeing things | Robert H. Wolfe |
| Sun Jun 10, 2001 | 117D | It's dropped on trips | Cathy Millhauser |
| Thu May 10, 2001 | 61A | What Leary tripped on (2) | Manny Nosowsky |
| Sat Feb 10, 2001 | 50A | Trip-taker's aid, perhaps | Rich Norris |
| Sat Dec 16, 2000 | 51A | Trip starter (2) | Jim Page |
| Mon Oct 30, 2000 | 19A | Hallucinogen (2) | Gregory E. Paul |
| Fri May 5, 2000 | 61D | Trip inducer | Roger Barkan |
| Wed Apr 26, 2000 | 39D | Kind of trip (4) | A. J. Santora |
| Wed Mar 29, 2000 | 54A | Acid (24) | Peter Gordon |
| Wed Feb 23, 2000 | 36A | It might make you see things | Fred Piscop |
| Wed Dec 29, 1999 | 29D | Kind of trip (4) | Robert O. Dillman |
| Fri Dec 10, 1999 | 37A | Narc's find, perhaps | Gilbert H. Ludwig |
| Mon May 17, 1999 | 4D | It'll make you see things | Ethan Cooper |
| Sun Nov 15, 1998 | 111A | It may make you see things | Robert H. Wolfe |
| Sun Oct 25, 1998 | 93D | A turn-on | Nancy Nicholson Joline |
| Tue Oct 13, 1998 | 23D | Hallucination cause | Nancy Salomon |
| Wed Oct 7, 1998 | 26A | Woodstock supply | Randall J. Hartman |
| Tue Sep 29, 1998 | 64A | Tripper's turn-on (2) | Thomas W. Schier |
| Wed Sep 2, 1998 | 9D | Trip promoter? | Randall J. Hartman |
| Tue Aug 25, 1998 | 22D | "Acid" (24) | Randy Sowell |
| Fri Aug 21, 1998 | 32A | Kind of trip (4) | Noah Dephoure |
| Sun Aug 2, 1998 | 57A | Certain turn-on | Nancy Nicholson Joline |
| Sun Mar 22, 1998 | 69A | What Leary tripped on (2) | Emily Cox and Henry Rathvon |
| Fri Aug 1, 1997 | 1D | Trip instigator | Gerald R. Ferguson |
| Fri Jun 13, 1997 | 11D | It was dropped in the 60's (5) | Bob Klahn |
| Sun May 26, 1996 | 6D | Trip starter (2) | R. Ross |
| Fri Mar 8, 1996 | 36A | Illegal manufacture | R. Ross |
| Thu Dec 21, 1995 | 43D | Kind of trip (4) | Rich Norris |
| Sun Oct 8, 1995 | 92D | Bit of psychedelia | Nancy Nicholson Joline |
| Sun Aug 27, 1995 | 74A | Acid (24) | Martin Schneider |
| Wed Jul 26, 1995 | 42A | Acid (24) | Christopher Hurt |
| Sat Jun 24, 1995 | 61A | 60's turn-on (2) | Bob & Sharon Klahn |
| Wed Jun 7, 1995 | 27D | C20-H25-N3-0 | Martin Schneider |
| Thu Sep 22, 1994 | 34A | Acid (24) | George Quincy |