If you experience chest pain, dizziness, or nausea during sex, seek immediate medical help. It has been on the market for several decades and has established a solid reputation for its effectiveness in treating ED. These can be due to religious restrictions, lack of sexual awareness, upsetting initial sexual experiences, and reduced self-esteem due to prior sexual activity. The pharmacokinetics of sildenafil are dose-proportional over the recommended dose range. Additionally, consulting with a healthcare professional is crucial to ensure the medication is safe and appropriate for your circumstances.Sildenafil (Viagra, Revatio) is a moderately priced drug used to treat erection problems in men. It is also used to treat pulmonary arterial hypertension, a serious heart and lung drug is more popular than comparable drugs. It is available in generic and brand versions. Generic sildenafil is covered by most Medicare and insurance plans, but . Hims is a telehealth company that provides both prescription and over-the-counter generic and brand-name medications. The brand focuses mainly on five medications, including Viagra, that have. What can I use instead of Viagra? Alternative medications for ED One of the causes of ED is the presence of phosphodiesterase-5 (PDE5), which can slow or reduce blood flow to .