Like all medicines, Sino-implant (II)/Levoplant can cause side effects, although not everyone experiences them. Changes in menstrual bleeding are the most common side effect of implants, including Sino-implant (II)/Levoplant. These changes can include irregular bleeding, a change in the amount of bleeding or a change in the number of days a woman bleeds. This irregularity typically diminishes with continued use. Some women may stop having menstrual bleeding altogether for as long as they use the implant. An absence of bleeding (amenorrhea) while using this device is not harmful. Fertility and menstruation return when the implant is removed.

Users can experience headaches, dizziness, nervousness, weight gain, nausea, vaginal discharge, lower abdominal pain, cervical inflammation, itching of the external genitals, and breast tenderness. This is not a complete list of side effects. For additional details or to discuss side effects that concern you, talk to your healthcare provider.

You should contact your healthcare provider at any time if you have concerns or questions about Sino-implant (II)/Levoplant. If you notice or experience the following symptoms, you should contact your healthcare provider immediately: pus or bleeding at the insertion site, implants sticking out of the skin, heavy or prolonged vaginal bleeding (twice as much as usual bleeding and lasting longer than eight days), severe pain in the lower abdomen or migraine headaches.