The following side effects may get better over time as your body gets used to the medication. Let your healthcare provider know immediately if you continue to experience these symptoms or if they worsen over time.
Common Side Effects
- Acne (4%)
- Breakthrough bleeding (3%)
- Headache (3%)
- Breast pain (2%)
Less Common Side Effects
- Weight gain
- Irregular bleeding
- Nausea
- Lowered sex drive
- Vaginal bleeding
- Breast tenderness
Slynd serious side effects
Contact your healthcare provider immediately if you experience any of the following.
- Ectopic pregnancy: pain in your lower stomach or back area (typically only on one side), vaginal bleeding
When do Slynd possible side effects begin and end?
Time passed since treatment started:
H
D
W
M
Irregular bleeding
Nausea
Source: DailyMed
The following Slynd side effects have also been reported
Side effects that you should report to your care team as soon as possible:
- Allergic reactions—skin rash, itching, hives, swelling of the face, lips, tongue, or throat
- Blood clot—pain, swelling, or warmth in the leg, shortness of breath, chest pain
- Heart attack—pain or tightness in the chest, shoulders, arms, or jaw, nausea, shortness of breath, cold or clammy skin, feeling faint or lightheaded
- High potassium level—muscle weakness, fast or irregular heartbeat
- Liver injury—right upper belly pain, loss of appetite, nausea, light-colored stool, dark yellow or brown urine, yellowing skin or eyes, unusual weakness or fatigue
- Stroke—sudden numbness or weakness of the face, arm, or leg, trouble speaking, confusion, trouble walking, loss of balance or coordination, dizziness, severe headache, change in vision
- Worsening mood, feelings of depression
Side effects that usually do not require medical attention (report these to your care team if they continue or are bothersome):
- Acne
- Breast pain or tenderness
- Headache
- Irregular menstrual cycles or spotting
- Menstrual cramps
- Nausea
- Weight gain

