Side Effects: fatigue, weakness, lightheadedness or dizziness, headache, nausea or vomiting, diarrhea, vision changes, joint pain, difficulty falling or staying asleep, swelling, numbness or tingling in upper or lower extremities, shortness of breath, syncope, chest pain, significant bradycardia, hives, swelling of face, lips, tongue, or throat
Claims about insulin sensitivity, obesity, performance and longevity derive predominantly from cellular and animal research
Research on patient preferences consistently shows overwhelming preference for nasal formulations, with feedback describing them as fastest and simplest. The elimination of needle-related anxiety, pain, and the need for sterile technique significantly reduces barriers to consistent therapy adherence
This weight loss was accompanied by a marked improvement in testosterone levels: the proportion of men with normal total and free testosterone levels rose from 53% at baseline to 77% at follow-up