* FTSEurofirst 300 index down 0.2 pct
* Miners fall on China concerns
* Drugmakers gain after Republican wins Senate seat
By Joanne Frearson
LONDON, Jan 20 (Reuters) - European shares fell on Wednesday, led by miners on mounting concerns about China reining in loose monetary policy, though drugmakers gained on doubts over U.S. healthcare reform.
By 0942 GMT, the pan-European FTSEurofirst 300 <
> index of top shares was down 0.2 percent at 1,066.89 points."Asia has been weak on the Chinese authorities curbing lending growth. I think Europe is reacting to China again," said Bernard McAlinden, investment strategist at NCB Stockbrokers.
Chinese banking authorities have instructed some major banks to curb their lending over the rest of this month after an early burst of credit [
].China's key stock index <
> was down 2.9 percent.Miners were under pressure as metal prices weakened. Copper <MCU3=LX> fell 1 percent and platinum retreated from a 17-month high.
Anglo American <AAL.L>, Antofagasta <ANTO.L>, BHP Billiton <BLT.L>, Eurasian Natural Resources Corporation <ENRC.L>, Rio Tinto <RIO.L> and Xstrata <XTA.L> slipped 1.6 to 2.4 percent.
Banks were under pressure ahead of earnings news from Bank of America <BAC.N>, Morgan Stanley <MS.N> and Wells Fargo <WFC.N>.
Barclays <BARC.L>, BNP Paribas <BNPP.PA> and Societe Generale <SOGN.PA> fell 0.6 to 1 percent.
DRUGMAKERS GAIN AFTER REPUBLICAN WIN
Drugmakers gained after a Republican win in the U.S. Senate race in Massachusetts robbed the Democrats of the crucial 60th Senate vote needed to pass healthcare reform.
GlaxoSmithKline <GSK.L>, Sanofi Aventis <SASY.PA> and AstraZeneca <AZN.L> advanced 0.8 to 1.5 percent.
"The odds of major U.S. healthcare reform, or something that's not to the Republicans liking, is now looking less than 50 percent -- and that's going to help the pharmaceutical companies," said Jefferies analyst Jeffrey Holford.
Dutch chip equipment maker ASML <ASML.AS> rose 3.7 percent after fourth-quarter new orders beat expectations as the market continued to improve. [
]On Tuesday, IBM <IBM.N> raised its 2010 profit target and reported a stronger-than-expected 9 percent increase in fourth-quarter earnings, as cost cuts and a shift to more profitable contracts helped it weather a slump in corporate spending. [
]Later in the session, investors will eye housing starts and building permits at 1330 GMT.
Economists in a Reuters survey forecast a 580,000 annualized rate versus 574,000 in November. A total of 590,000 permits are expected compared with 589,000 in November.
Across Europe, both the FTSE 100 <
> index and Germany's DAX < > were down 0.3 percent and France's CAC 40 < > was 0.2 percent lower. (Editing by Jon Loades-Carter)