Drugstore.com's

(DSCM)

loss widened in its third quarter, despite burgeoning sales, the e-commerce company reported on Tuesday.

The online pharmacy lost $6.4 million, or 8 cents a share, in the quarter. In the year-ago period, the company lost $6 million, or 9 cents a share.

Despite the larger loss, sales jumped 40.8% to $84.29 million.

The company's sales exceeded consensus expectations, but the company's loss came in wider than Wall Street's estimates.

Analysts surveyed by Thomson First Call were expecting the company to lose 6 cents a share in the quarter on $83.45 million in sales. Last month, the company

warned analysts that it wouldn't meet their previous expectations or its own prior guidance, saying it expected to lose 7 cents to 8 cents a share on sales ranging from $83 million to $85 million.

For the fourth quarter, Drugstore.com expects to lose $4.5 million to $6.5 million on sales ranging from $90 million to $100 million. The company did not provide per-share guidance, but assuming the company's share count grows at the same pace it did in the third quarter, the company's guidance implies a loss of 6 cents to 8 cents a share.

That's a significantly wider loss than analysts' had predicted. Wall Street has projected the company will lose 4 cents a share on sales of $94.30 million in the fourth quarter.

Last year, the company lost $2.4 million, or 3 cents a share, in the fourth quarter, on $70.6 million in sales.

Drugstore.com released its report after the bell on Tuesday. The company's stock closed regular trading earlier in the day off 2 cents a share, or 0.6%, to $3.48.