Sildenafil (Viagra) is a PDE5 inhibitor used to treat erectile dysfunction in men. Studies found that 16 to 18% of people taking Sildenafil can experience headaches. The effect of Sildenafil lasts for about 4 hours. Therefore, if anyone gets a headache, it will stay as long as the effect of the medicine.
Sildenafil headaches can be prevented by lowering the dose. Lower doses can differ in the occurrence of headaches. It is important to stay hydrated to minimize the headache, as dehydration may cause headaches. If the headache continues for a period, you may look for an alternative ED medicine. Different ED pills with different compositions may be beneficial without causing headaches.
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