When adjusting your dosage of Tadalista CT 20 (a medication typically used for erectile dysfunction), it's important to follow the guidance of your healthcare provider, as they will tailor the dose based on your individual needs, medical history, and tolerance. That said, if you are experiencing side effects (like headaches, dizziness, or digestive issues), you should not adjust the dosage on your own without consulting a doctor. Here are some general guidelines:

1. Frequency: Tadalista CT 20mg is often taken as needed, usually 30 minutes before sexual activity, but it can also be prescribed for daily use in some cases. Ensure you don't exceed one dose within 24 hours.

2. Side Effects: If you experience common side effects (headaches, flushing, nasal congestion, upset stomach), you might be taking a dose that’s too high for your body to handle. Lowering the dose (under the guidance of your doctor) may help alleviate these symptoms.

3. Pre-existing Conditions: If you have heart, liver, or kidney problems, your doctor may suggest a lower dose to avoid complications.

If you're noticing persistent or severe side effects, it's essential to contact your healthcare provider, as they may recommend an alternative treatment or dosage adjustment.