No, Tadalis SX 20 mg doses are not the same for everyone. The appropriate dose can vary depending on individual factors such as:

1. Health Conditions: People with certain health issues, such as liver or kidney problems, may need to take a lower dose of Tadalis SX 20mg. For example, if you have liver or kidney disease, your doctor may suggest adjusting the dose to avoid potential side effects.

2. Age: Older adults may be more sensitive to medications like Tadalis SX. Your healthcare provider might recommend a lower dose depending on your overall health.

3. Other Medications: If you're taking other medications, especially for heart conditions, blood pressure, or fungal infections, your doctor will need to adjust your Tadalis SX dose to avoid dangerous interactions.

4. Effectiveness and Tolerance: The typical starting dose of Tadalis SX is 20 mg, but your healthcare provider may adjust it based on how well the medication works for you and how your body tolerates it. If you experience side effects, a lower dose might be recommended.

5. Frequency of Use: Tadalis SX is typically used as needed, about 30 minutes before sexual activity. The dosage may be different for those who use it regularly versus those who use it on an occasional basis.

For the best results and to ensure safety, it's essential to follow your healthcare provider's advice regarding the dose of Tadalis SX 20 mg. If you're unsure or have concerns, consult your doctor to get a prescription tailored to your specific needs.