Sienna Miller doesn't plan to raise her child in Hollywood as she thinks it is a "dangerous" place.

The 30-year-old actress and fashion designer - who is expecting her first child with actor Tom Sturridge - told Vogue she thinks Los Angeles is "the most medicated place" she knows.

Sienna said: "Everyone's on something there. It's the most medicated place, there's a whole massive market for really addictive drugs.

"I've been prescribed Vicodin when I didn't really need it. It's dangerous. I mean, it's prescription heroin, really."

But the Layer Cake star does plan to keep acting after her baby is born.

She said: "After the little thing [the baby], I'd like to do something modern next time because everything I've done so far has been set in the 1940s."

Sienna added: "I don't have massive aspirations to produce films but I do enjoy that creative process of discovering scripts."