Paramedics and sheriff's deputies responded Thursday afternoon to Locklear's home in Westlake Village, which is 35 miles northwest of Los Angeles.
Ventura County sheriff's Capt. Mike Aranda says he did not know Locklear's condition but deputies are not investigating.
Locklear has been hospitalized several times over the years. In 2009, she pleaded no contest to reckless driving after being arrested on suspicion of driving under the influence of prescription medication.
The 50-year-old actress's publicists did not return messages seeking comment.
Locklear and "Melrose Place" co-star Jack Wagner recently ended their engagement. She was previously married to Bon Jovi guitarist Richie Sambora, and they have a daughter together.
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