Contraindications: Sustalad is contraindicated in individuals with diagnosed prostate or breast carcinoma, severe hepatic impairment, untreated polycythaemia, or hypersensitivity to any esterified testosterone compound. Persons with pre-existing cardiovascular disease should not combine Sustalad with additional androgenic compounds that further elevate haematocrit or negatively alter LDL/HDL ratios.
Side Effects: Androgenic effects include acne, accelerated male-pattern hair thinning, and increased sebum production. Estrogenic conversion via aromatase produces water retention and potential gynaecomastia, particularly when an appropriate AI is absent or incorrectly dosed. Haematocrit elevation beyond 54 % requires immediate dose reduction or cycle cessation. Mood changes, libido fluctuation, and sleep disruption may occur, especially when stacked with additional suppressive compounds.
Monitoring: Baseline bloodwork before cycle initiation should include testosterone (total and free), estradiol (E2), haematocrit, LDL/HDL, ALT, AST, and PSA. Repeat haematocrit and hepatic enzymes every four weeks, particularly if a hepatotoxic oral is co-administered. Estradiol monitoring is critical given the multi-week androgenic window — a single measurement mid-cycle is insufficient for accurate ancillary titration.
PCT: Due to the extended half-life of the decanoate ester fraction, allow a minimum of three weeks post-last injection before initiating PCT. Standard PCT involves Tamoxifen (20–40 mg/day) or Clomiphene (50 mg/day) for four to six weeks. Introducing SERMs before testosterone has cleared creates a pharmacological conflict and impairs axis recovery. HCG use during the final weeks of the cycle, prior to clearance, can facilitate faster LH pulse recovery.