Kamagra Oral Jelly contains Sildenafil Citrate, which is used to treat erectile dysfunction. Fatigue isn't commonly listed as a direct side effect of Kamagra Oral Jelly, but some people might experience it due to the following reasons:

Side Effects: Common side effects of Sildenafil Citrate include headache, flushing, indigestion, and dizziness. In some cases, these side effects can contribute to a feeling of fatigue.

Blood Pressure Changes: Sildenafil can cause changes in blood pressure. If blood pressure drops significantly, it might lead to feelings of tiredness or weakness.

Interaction with Alcohol: Combining Kamagra Oral Jelly with alcohol can exacerbate side effects like dizziness and fatigue.

Underlying Conditions: If you have other health conditions, they could interact with the medication and contribute to feelings of fatigue.

If you find that you're experiencing unusual or persistent fatigue after taking Kamagra Oral Jelly, it's a good idea to discuss this with your healthcare provider. They can help determine whether the medication might be contributing to your symptoms and suggest appropriate adjustments or alternatives.