Side effects: what to report and what needs urgent care
You do not need to decide whether a symptom proves that 7 mg is "too much" before asking for help. The symptom's severity, timing, and effect on daily life are more useful than the dose label alone.
Common side effects still deserve attention
Tadalafil can cause headache, indigestion, facial flushing, nasal congestion, back pain, and muscle aches. Having one of these symptoms does not automatically mean an overdose. It also does not mean the medicine is working better.
Report symptoms that are bothersome, persistent, worsening, or interfering with your activities. Tell the clinician when they began relative to the dose and whether you had alcohol, another medication, illness, or a change in your routine.
Do not try to compensate by changing the dose or schedule yourself. A clinician can assess whether the problem is medication-related and whether the treatment plan needs revision.
Be especially careful with dizziness. If you feel lightheaded, sit or lie down to reduce the chance of falling, and avoid driving while affected. Severe dizziness or fainting needs prompt medical assessment rather than reassurance based on the relatively small-looking number on the label.
Certain symptoms require immediate action
Rare but serious reactions can occur even at prescribed doses. Seek urgent care for the following:
An erection lasting longer than four hours, whether or not it hurts.
Sudden loss of vision or a sudden decrease in vision.
Sudden hearing loss or a sudden decrease in hearing, sometimes with ringing or dizziness.
Symptoms of a serious allergic reaction, such as swelling of the tongue or throat or difficulty breathing.
For sudden vision or hearing changes, stop tadalafil and seek medical attention immediately, consistent with its patient safety instructions. An erection lasting longer than four hours requires emergency treatment to help prevent lasting injury.
Call 911 for chest pain, severe shortness of breath, collapse, or signs of a severe allergic reaction. Do not send an emergency symptom to a customer-service form or wait for an asynchronous consultation reply.
A prolonged erection is a medical emergency, not evidence of a successful dose.
If you already took more than intended
If you took an extra dose, used the wrong amount, or cannot tell how much a preparation contained, contact Poison Control at 1-800-222-1222 for individualized guidance. You can also contact your prescriber or pharmacist, but do not wait for routine messaging if an overdose may have occurred.
Have the container, ingredient list, amount taken, and approximate time available. Include any other ED medicines, alcohol, or interacting drugs.
A single 7 mg dose is not automatically an overdose. The concern is whether it exceeded your prescription, overlapped with other doses, or occurred in a situation that makes tadalafil unsafe. Severe symptoms require emergency care regardless of the amount.