Answer
Depo-Provera (medroxyprogesterone acetate) can delay return to full fertility regardless of duration of use, with a median time to conception of 10 months after the last injection, but there is no evidence of permanent infertility.
Sources for this answer
- Depo-Provera 150mg/ml InjectionPfizer Limited · emc · SmPC §4.4 Special warnings and precautions for use · Version 24Document updated
Sources checked