Tadalafil 20 mg (Cialis) for ED: doctors supervision needed

Taking tadalafil of 20 mg without a prescription is dangerous and not recommended.

1. Risks and considerations

Side effects

-Tadalafil is a drug for erectile dysfunction and can cause side effects such as headache, facial blush, indigestion, back pain and changes in blood pressure. Without proper medical supervision, these adverse effects cannot be adequately managed.

Interactions with other medicines

-it may interact with other medicines being taken, such as nitrates (used for angina), and the combination can cause a drastic drop in blood pressure, which can be life-threatening. A doctor should evaluate the patient's complete medical history, including other medicines being consumed, to avoid dangerous interactions.

Underlying diagnosis

-erectile dysfunction can be a symptom of underlying diseases, such as heart, endocrinological (e.g. diabetes) or neurological problems. A doctor should evaluate the root cause before prescribing tadalafil, and not taking it without a prescription may delay the diagnosis and proper treatment of a possible serious disease.