BERLIN (Reuters) - Tokio Hotel guitarist Tom Kaulitz told a German newspaper on Friday he fell ill after taking too many Viagra tablets and could not see straight for days.

Kaulitz, 20, told Bild newspaper that someone offered him a Viagra tablet during a 音乐会 tour of Asia. After first turning down the offer, Kaulitz 说 he decided to try one. He 说 a little later he took a 秒 one and fell ill.

"I first asked the seller 'Do I look like someone who needs help with that?'" 说 Kaulitz, whose brother Bill is the group's lead singer. "He 说 'no' -- but that I should nevertheless try it out. I popped one in."

Kaulitz, a member of the German rock band that has sold millions of albums around the world, 说 he took a few 更多 tablets used to treat impotence when he got back to his hotel.

"I popped a few 更多 pills, probably too many," he said. "The 下一个 morning my head was pounding and everything in front of my eyes was blurry. It wasn't fun anymore. It was pretty bad."

Kaulitz 说 it took two days for the effects to wear off. "Unfortunately there were situations where it just wasn't appropriate," Kaulitz said.

(Reporting 由 Erik Kirschbaum; editing 由 Paul Casciato)