Skip the substitutes and go for the real thing. National Library of Medicine. Your healthcare provider can help you determine the right dosage for you. We rely on peer-reviewed studies, academic research institutions, and medical associations. The drug is approved for use in adults. However, the dosage can range from 25— mg.The formulas of the main anabolics are very similar in structure to natural steroid hormones, and, accordingly, they are recognized by the pituitary and hypothalamus. And since the regulator believes that there is an overabundance of them in the body, it gives the command to turn off the production of its own hormones. The History of Supplementation for Sexual Health. Many of the herbs contained in sexual wellness supplements have been used for centuries to address problems. These problems include reduced libido (sex drive) and erectile dysfunction (trouble getting or maintaining an erection). Ancient cultures believed that certain plants and foods functioned. Dosage. The dose of Cialis you need will depend on whether you’re taking it daily or as needed. Daily doses are often between and 5 milligrams (mg). The as-needed dose is usually 10 mg but can range from 5–20 mg. The typicaldose of Viagra is 50 mg. However, the dosage can range from 25– mg.