Even though Valerie Harper ensured fans that she is feeling better after being rushed to the hospital Wednesday, she is bowing out of the musical she's currently starring in.
The Ogunquit Playhouse, the Maine theater company putting on the production of Nice Work If You Can Get It, announced that Academy Award-nominated actress Brenda Vaccaro will be stepping into the role of Millicent Winter through the end of the play's run on Aug. 15.
Photos of Valerie Harper from throughout her career:
Valerie Harper through the years
Valerie Harper replaced in 'Nice Work If You Can Get It' following hospital stay
IMAGE DISTRIBUTED FOR AARP - Valerie Harper arrives at the AARP Movies for Grownups Film Showcase at Regal Cinemas L.A. LIVE on Friday, November 7, 2014 in Los Angeles. (Photo by Vince Bucci/Invision for AARP/AP Images)
Photo by: Dennis Van Tine/STAR MAX/IPx
Valerie Harper at the American Lung Association's launch of Lung Force - a national public health initiative to fight lung cancer in women.
Actress and cancer survivor Valerie Harper, testifies before a Senate Special Committee on Aging hearing to examine the fight against cancer, focusing on challenges, progress, and promise, on Capitol Hill in Washington, Wednesday, May 7, 2014. (AP Photo/Manuel Balce Ceneta)
Committee Chairman Sen. Bill Nelson, D-Fla., left, and actress and cancer survivor Valerie Harper exchange greetings before the start of a Senate Special Committee on Aging hearing to examine the fight against cancer on Capitol Hill in Washington, Wednesday, May 7, 2014. Ranking member Sen. Susan Collins, R-Maine, right, and National Institutes of Healthâs National Cancer Institute Director Harold Varmus, back left, watch. Harper told Sen. Nelson that he still looks like "a little cute beach boy." (AP Photo/Manuel Balce Ceneta)
Valerie Harper arrives at the 82nd Annual Hollywood Christmas Parade, on Sunday, Dec. 1, 2013 in Los Angeles. (Photo by Richard Shotwell/Invision/AP)
Valerie Harper attends the "Lung Cancer: Bring On The Change!" Event on Sunday, Sept. 29, 2013, in Los Angeles. (Photo by Todd Williamson/Invision/AP)
FILE -This May, 16, 2012 file photo, shows actress Valerie Harper at the Friars Club Roast of Betty White in New York. The 1970s sitcom star has been diagnosed with a rare brain cancer. Harper defied odds with her survival and will be one of the 12 upcoming contestants on the 17th season of âDancing With the Stars.â (AP Photo/Charles Sykes, File)
Valerie Harper arrives at the 61st Annual Tony Awards in New York, Sunday, June 13, 2010. (AP Photo/Peter Kramer)
Actress Valerie Harper attends 'The Heart Truth's' Red Dress Collection 2010 fashion show on Thursday, Feb. 11, 2010 in New York. (AP Photo/Evan Agostini)
Valerie Harper, left, and Betty White arrive at the 13th Annual Screen Actors Guild Awards on Sunday, Jan. 28, 2007, in Los Angeles. (AP Photo/Reed Saxon)
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Valerie Harper at "The Second Annual TV Land Awards: A Celebration of Classic TV".
(Hollywood, CA) (Star Max via AP Images)
Actors Betty White, left, Georgia Engel, second left, Gavin MacLeod, center, Valerie Harper, second right, and John Amos pose for photographers during arrivals at CBS's 75th anniversary celebration Sunday, Nov. 2, 2003, in New York. (AP Photo/Louis Lanzano)
Actress Valerie Harper, front center, crosses her fingers as she and others, including actress Sally Kirkland, rear left, await results of a vote on whether the Screen Actors Guild and the American Federation of Television and Radio Artists should consolidate, Tuesday night, July 1, 2003, in Los Angeles. Harper and Kirkland were both opposed to the consolidation. The proposal was narrowly defeated when members of both organizations voted in favor of consolidating but not by the 60 percent yes vote required. (AP Photo/Rene Macura)
Former cast members of the Mary Tyler Moore Show, sans Mary Tyler Moore, are reunited for the Museum of Television and Radio's 9th annual Television Festival in Los Angeles Saturday, March 21, 1992. From left are Gavin MacLeod, Valerie Harper, Cloris Leachman, Betty White and Ed Asner. (AP Photo/Craig Fujii)
Valerie Harper, left, Ed Asner, center, and Sally Struthers hold their Emmys at the 24th annual Primetime Emmy Awards presentation in Hollywood, Ca., Sunday night, May 14, 1972. Harper and Asner won best supporting actress and actor, respectively, in "The Mary Tyler Moore Show." Struthers won for her role in "All in the Family." (AP Photo)
Actress Valerie Harper, left, and actor Ed Asner pose with their Emmy statuettes at the annual Primetime Emmy Awards presentation in Los Angeles, Ca., May 9, 1971. Harper won best supporting actress and Asner won best supporting actor for their role in a comedy performance for "The Mary Tyler Moore Show." (AP Photo)
"Valerie is feeling great right now and we want her to continue to rest and to enjoy her family," Executive Artistic Director Bradford Kenney said in the playhouse's press release. "After discussing with them, we decided that we wanted to relieve her of any pressure of having to return to the show, which only runs for two more weeks."
The 75-year-old actress took to Facebook Friday night to update friends and fans on her condition. "As always, thank you for your amazing support," Harper wrote. "I am happy to report I am not, nor have I been, in a coma."
"As anyone who has taken strong medication knows, it doesn't always agree with you, even with me as this experience proves," she added.
Harper was diagnosed with terminal brain cancer in 2013, but she's remained extremely positive throughout her battle, which has included chemotherapy treatments. The Rhoda star sat down with ET last year to talk about her prognosis -- watch the video below.