Charlie Sheen will be in rehab for three months.

The actor was admitted to a treatment facility over the weekend after he was hospitalised following a 36-hour alcohol and drugs binge at his Los Angeles home, and sources say he could be there for up to 90 days, disrupting filming on eight episodes of his comedy TV series 'Two And A Half Men'.

The CBS network which employs Charlie - who is the highest paid television star In America, reportedly earning a reputed $1.78 million per episode of 'Two And A Half Men' - said in statement it was "profoundly concerned for his health and well-being" before announcing production will go on hiatus.

The 45-year-old actor's manager Mark Burg, who is also a producer on the show, told the New York Daily News newspaper: "Charlie knows he has work to do and he is looking forward to regaining his sobriety. Charlie hopes to be back at work in the near future but there is no time frame. Regaining his sobriety is what is most important."

Gossip website TMZ has reported that there are around 300 people associated with the programme and many are getting nervous about whether they will be paid while shooting is halted.

The crew were "partially compensated" when Charlie - who has four children, daughters, Lola, six, and Sam, five, with ex-wife Denise Richards and 22-month old twin boys Bob and Max with estranged spouse Brooke Mueller - was last admitted to rehab in February 2010.

Meanwhile, Lindsay Lohan - who was herself discharged from the Betty Ford Centre after three months of court-ordered drug treatment on January 3 - has said she is "worried" for the actor as he shows "obvious signs of addiction".

A source close to the 'Machete' actress said she "understands the problem of having the wrong people around and wants Charlie to understand that he needs to surround himself with positive, sober people".