I drink it.
Yes, it can increase uterine contractions, and is often used to 'naturally' induce labour.
RRL tea also helps with fertility (ie: getting preggers) and helps to avoid miscarriage, at least in the first 12 weeks. The controversy about uterine contractions usually is in reference to the period after 12 weeks, and before 8-9 months.
I have recently added (stinging) nettle leaves to my tea, and am also thinking about adding some red clover too. All also linked to fertility.