All clinical guides

Urology medications

Dental Considerations for Patients Taking PDE5 inhibitor (sildenafil/tadalafil)

Important — second opinion only. DentiCision provides an evidence-based second opinion to assist the dentist. It does not replace the treating dentist's professional clinical judgment or consultation with the patient's physician. The treating dentist retains full clinical, scientific and legal responsibility. Always verify drugs and doses against current guidelines.

No GTN within 24–48 h (PDE5 inhibitor)

Record of PDE5 inhibitor. The points below cover relevant oral side-effects and drug interactions so prescribing and treatment remain safe and non-conflicting.

Emergency vs routine management

If EMERGENCY — what to do

  • • Do not delay emergency treatment — proceed with urgent care while applying the modifications listed above.

If ROUTINE — what to do

  • • Proceed with routine care once the listed precautions, labs or timing checks are satisfied.
  • • Book at the most suitable time and keep appointments short where advised.

Clinical precautions

  • • Medical emergency: if chest pain occurs, do NOT give GTN within 24 h of sildenafil/vardenafil or 48 h of tadalafil (profound hypotension) — give aspirin 300 mg if appropriate and call emergency services.
  • • Clarithromycin/erythromycin and azole antifungals raise PDE5-inhibitor levels — avoid co-prescribing or advise the patient to reduce/skip doses.
  • • If prescribed for pulmonary hypertension (Revatio/Adcirca), assess the underlying condition and liaise with the physician before invasive treatment.
  • • Avoid prescribing drugs that interact; verify any new prescription against the patient's full medication list.

Medications to avoid → safer alternative

  • Glyceryl trinitrate (GTN) spray in an angina emergencyAspirin 300 mg (if not contraindicated), oxygen and call emergency services

    Nitrate + PDE5 inhibitor → severe hypotension.

At a glance by procedure

Initial assessment before lab results or timing details are entered.

ProcedureInitial assessment
Examination / radiographsMODIFY / CAUTION

No GTN within 24–48 h (PDE5 inhibitor)

Supragingival scaling / polishMODIFY / CAUTION

No GTN within 24–48 h (PDE5 inhibitor)

Deep scaling / subgingival RSD (subgingival calculus)MODIFY / CAUTION

No GTN within 24–48 h (PDE5 inhibitor)

Root canal treatmentMODIFY / CAUTION

No GTN within 24–48 h (PDE5 inhibitor)

Simple extraction (1–3 teeth)MODIFY / CAUTION

No GTN within 24–48 h (PDE5 inhibitor)

Surgical / bony extractionMODIFY / CAUTION

No GTN within 24–48 h (PDE5 inhibitor)

Implant placementMODIFY / CAUTION

No GTN within 24–48 h (PDE5 inhibitor)

Get a patient-specific decision in seconds

Combine all conditions, medications, lab results and the planned procedure — with anaesthetic dose calculation, lab requests and a referral letter PDF.

References

  1. Drug considerations in dentistry (oral side-effects & interactions)
  2. Resuscitation Council UK — Medical emergencies in dental practice
  3. BNF: phosphodiesterase type-5 inhibitors — interactions

Related guides

Important — second opinion only. DentiCision provides an evidence-based second opinion to assist the dentist. It does not replace the treating dentist's professional clinical judgment or consultation with the patient's physician. The treating dentist retains full clinical, scientific and legal responsibility. Always verify drugs and doses against current guidelines.