Instead, Eisenberg found that marijuana users are having about 20 percent more sex than people who abstain from the drug.
According to Eisenberg, "Frequent marijuana use doesn't seem to impair sexual motivation or performance".
The researchers asked respondents about how many times they've had intercourse with a member of the opposite sex in the past four weeks and how frequently they've smoked marijuana over the past year.
The investigators compiled answers to those questions for all years since 2002, when the survey first began collecting data on men as well as women.
People who report daily pot use have sex more often than either occasional users or those who never touch the stuff, the researchers found.
Similarly, men who used marijuana daily reported having sex with a woman 6.9 times per month, compared with 5.6 times for nonusers.
Dr Eisenberg adds that the overall trend applied to people of both sexes and all races, ages, education levels, income groups and religions, every health status, whether they were married or single and whether or not they had kids.
It is estimated that around 180 million people around the world use marijuana, according to the latest edition United Nation's World Drug Report.
The drug has been legalized for medical or recreational use in 29 states, and 64 percent of respondents to Gallup's latest poll support cannabis legalization - the largest share of the population in the polling service's almost 50 years of work on the question.
"We were surprised to see the positive association between users", Eisenberg said. "One question my patients always have is will smoking marijuana frequently negatively impact my sexual function?"
Around 25.5% of men and 14.5% of women in the analysis reported having used marijuana, and in addition, the researchers found a positive association between frequency of marijuana use and frequency of sexual intercourse. Perhaps people who smoke have traits that make them more likely to have more sex.
But animal studies have shown that stimulating the brain's cannabinoid receptors can lead to increased arousal and sexual behavior, Eisenberg said.
"The personality type issue is certainly possible", Eisenberg said.
"While the results are very interesting, it's premature to suggest that marijuana may have a medicinal use in the treatment of sexual disorders such as erectile dysfunction, premature ejaculation or orgasmic disorder", Vira said.
"Given the increasing use, the effects of marijuana use on adult health and function are increasingly relevant". His study was published in this week's Journal of Sexual Medicine.