Testosterone, reviewed by a provider
Explore the researchResearch Guides
Research GuidesBlood tests during testosterone treatment: what gets checked and whyWhat labels and guidelines say about testosterone, hematocrit, prostate and blood pressure checks before and during testosterone treatment.Read guide →Research GuidesTestosterone cypionate: what the FDA label saysWhat the testosterone cypionate label says about the drug, its approved uses, dosing range, contraindications, warnings and side effects.Read guide →Research GuidesHeart, clots and blood pressure: what the trials and labels measuredWhat TRAVERSE, FDA actions from 2015 and 2025, and testosterone labels say about heart events, blood clots and blood pressure.Read guide →Research GuidesHow low testosterone is diagnosed, and why two morning tests matterHow guidelines and the cypionate label describe diagnosing low testosterone: fitting symptoms plus repeat morning blood tests.Read guide →Research GuidesHow to read a testosterone study: who was enrolled and what was measuredUse TRAVERSE, the Testosterone Trials, T4DM and the ACP review to see how enrollment and endpoints shape what a study shows.Read guide →Research GuidesInjection, cream and gel: how testosterone forms differHow testosterone cypionate injection, testosterone gel and compounded cream differ in use, skin transfer, regulation and blood counts.Read guide →Research GuidesQuestions to bring to your provider visitQuestions on diagnosis, safety, dose and monitoring to bring to a testosterone visit, each tied to what the label or guideline says.Read guide →Research GuidesSymptoms of low testosterone that other conditions can explainLow testosterone symptoms are nonspecific. See what the sources say about other causes and why one blood test is not enough.Read guide →Research GuidesTestosterone and fertility: what to know before startingWhat labels, guidelines and research say about testosterone treatment, sperm production and recovery for men who may want children.Read guide →Research GuidesWhat the Testosterone Trials and the T4DM trial foundWhat two placebo-controlled testosterone trials measured: sex, mood, energy, bone, plaque, blood sugar and hematocrit.Read guide →Research GuidesWhat the TRAVERSE trial tested, and what it did notTRAVERSE tested a daily testosterone gel in 5,246 men with heart risk. Here is what it found on heart events, clots, rhythm and fractures.Read guide →Research GuidesWhat "compounded" testosterone means and does not meanCompounded testosterone is not FDA approved. Here is what FDA says that means, and how an approved cypionate label compares.Read guide →