If someone gets the birth control shot while on their period and consumes an ecstasy pill about 12 hours later, will the shot still work?…

…Or does the ecstasy reduce the chance of it working?

Great question.  On a chemical level, no: ecstasy and similar drugs have not been found to decrease the effectiveness of hormonal birth control, including the Depo-Provera shot. (Some prescription drugs and herbs do, though, so be sure your healthcare providers know what you’re taking.)  If you received your shot on time, it’s more than 99% likely to prevent an unplanned pregnancy, even if you have recreational drugs in your system.

However, drug use can affect your sexual health choices in other ways.  It’s well-documented that those under the influence are more likely to engage in unprotected sex, increasing the risk of STI transmission. Being high or drunk can also negatively affect a person’s communication, decreasing their ability to set boundaries, read a partner’s reactions, and give or withdraw their consent. And they may not be able to look out for their friends or themselves the way they’d like.

So will using recreational drugs affect your Depo’s effectiveness? Not directly. But it’s important to recognize that drug use can negatively affect your sexual health. Want to learn more?  Make an appointment to talk to a practitioner at Teen Clinic. And be sure to use condoms consistently, correctly, and all the time to prevent infection.