<p style="box-sizing: border-box; margin: 0px 0px 20px; padding: 0px; border: 0px; vertical-align: baseline; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-variant-alternates: inherit; font-variant-position: inherit; font-variant-emoji: inherit; font-stretch: inherit; line-height: inherit; font-family: 'Work Sans', Arial, Helvetica, sans-serif; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; font-size: 16px; margin-block: 0px 20px; color: #777777;">Alvitra 20 usually starts working within 30&ndash;60 minutes after intake. Its effects can last for up to 4&ndash;6 hours, depending on the individual&rsquo;s health, metabolism, and lifestyle. Sexual stimulation is required for the medicine to be effective.