T4 is a thyroid hormone that athletes use for weight loss. T4 would be a great enhancement, if you want to run a cutting cycle.

• Weight Loss Solution
• Appetite Suppression
• 30% Metabolism Increase
• Usage: 200-400 mg once in 7-10 days
• Cycle Duration: 4-7 weeks for optimal results 

Letrozole is one of the most commonly used anti-estrogen during cycle among steroid users. Femara reverses the symptoms of gynecomastia and other estrogen related side effects.

• Usage: 0.5-2.5 mg/day

Aromasin protects against estrogen-related side effects. It is mild Aromatase Inhibitor used to prevent gyno during highly androgenic steroid cycles.

• Usage: 12.5-25 mg/day

Spironolactone is a potassium-sparing diuretic that eliminates water excess and does not decrease potassium levels. It is the safest diuretic available on the market.
Benefits:
Bodybuilders use Spironolactone to increase muscle definition before a contest or a show.
Powerlifters, boxers, and wrestlers use Spironolactone before weight-in for category adjustments.
Administration: Recommended dosage 50-100 mg/day
Stack with: Experienced users are stacking Lasix with Spironolactone for faster and more dramatic results.
Safety: Spironolactone misuse could lead to side effects such as minor headaches, diarrhea, and drowsiness.

B12 is an injectable form of Vitamin B12, that is often used as a solvent for HGH injections. The main function is to accelerate fat loss.

• Usage: 25-50 mcg/day
• Cycle Duration: 3-5 weeks 

Arimidex (Anastrozole) is one of the most reliable antiestrogens on the market today and is used during steroid cycle to control normal estrogen rate and prevent gynecomastia symptoms.

• Usage: 0.5-1 mg/day

• Anti Prolactine
• Use during Deca and Tren Cycle
• Prevents “Prolactine Gyno”
• 0.5-1 mg twice a week

Triamterene is a fast-acting potassium-sparing diuretic. Clinical studies show that this drug starts working in 15-20 minutes after administration and reaches its effectiveness peak in 2-3 hours.
Benefits:

• It is used in Bodybuilding mainly for fast water excess elimination resulting in a better muscle definition.
• It is used in powerlifting and combat sports before the weight-in procedure resulting in a favorable category adjustment.

Administration: Recommended dosage 75-150 mg/day
Safety: Higher than recommended dosages could lead to headaches, nausea, low energy levels, and drowsiness. Avoid potassium supplementation or high potassium diet during Triamterene administration.