Viagra is usually taken only when needed, 30 minutes to 1 hour before sexual activity. You may take it up to 4 hours before sexual activity. Stop sexual activity and get medical help right away if you get symptoms such as chest pain, dizziness, or nausea during sex. Tadalafil - STADA T20 - 20 milligram Tadalafil, sold under the brand name Cialis among others, is a medication used to treat erectile dysfunction, benign prostatic hyperplasia, and pulmonary arterial hypertension. [4][5][7] It is taken by mouth. [7] Onset is typically within half an hour and the duration is up to 36 hours. [7] Common side effects include headache, muscle pain, flushing, and. Description Sildenafil is used to treat erectile dysfunction (also called sexual impotence). Sildenafil belongs to a group of medicines called phosphodiesterase 5 (PDE5) inhibitors. These medicines prevent an enzyme called phosphodiesterase type-5 from working too quickly. The penis is one of the areas where this enzyme works. Erectile dysfunction is a condition where the penis does not harden. Kamagra is a medication commonly used to treat erectile dysfunction and high blood pressure. It contains the active ingredient sildenadil citrate, similar to other medications such as Viagra and Cialis. Ein weit verbreiteter Wirkstoff ist Sildenafil, dieser ist auch in Kamagra enthalten. Jedoch sind weder die Dosierung noch die weiteren Inhaltsstoffe von Kamagra durch deutsche oder europäische Behörden geprüft, weshalb dringend von der Einnahme abzuraten ist. Discover the uses, risks, and safety concerns of Kamagra in our helpful guide. Plus learn about trusted, regulated alternatives for treating erectile dysfunction. Kamagra contains sildenafil citrate, a clinically validated compound used to support erectile function. It works by improving blood flow during sexual arousal, enabling a stronger physical response. It does not increase desire directly, but supports the body’s natural mechanisms. This article is written to clarify the medical facts behind the kamagra vs viagra discussion, using evidence, regulatory standards, and real clinical experience instead of marketing claims. Brand names include Kamagra (Ajanta Pharma), Silagra (Cipla), Edegra (Sun Pharmaceutical), Penegra (Zydus Cadila), Manly (Cooper Pharma) and Zenegra (Alkem Laboratories).