Prevalence of polycythaemia with different formulations of testosterone therapy in transmasculine individuals.
Brendan J NolanShalem Y LeemaqzOlivia OoiPauline CundillNicholas SilbersteinPeter LockeMathis GrossmannJeffrey D ZajacAda Sau-Zhuen CheungPublished in: Internal medicine journal (2021)
One in four individuals treated with intramuscular testosterone enantate and one in six treated with testosterone undecanoate had polycythaemia. No individual treated with transdermal testosterone had polycythaemia. This highlights the importance of regular monitoring of haematocrit in transmasculine individuals treated with testosterone, and findings may inform treatment choices.