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NAD+ vs Sildenafil: side-by-side comparison

Ancillary

Nicotinamide Adenine Dinucleotide · NAD Plus

A coenzyme essential for cellular energy and DNA repair. NAD+ levels decline with age, and supplementation may support cellular health and energy production.

1.0/10 natty
Full breakdown →
VS
Ancillary

Viagra · Revatio · Sildenafil citrate

A short-acting phosphodiesterase type-5 (PDE5) inhibitor, the drug in Viagra (erectile dysfunction) and Revatio (pulmonary arterial hypertension). It relaxes vascular smooth muscle and enhances blood flow, most famously to the penis. Its ~4-hour half-life makes it a fast-on, as-needed drug rather than a low-dose daily one like tadalafil. On cycle it is used for erectile function, 'pumps' and vascular/blood-pressure support.

1.0/10 natty
Full breakdown →

1 / 10 natty scale / 1

Same lane

Both sit in the same class and are run for health. This is a like-for-like comparison: read the gaps as real trade-offs.

The tape

Core ratings

The same three rulers every entry on the site is scored with, read head to head.

NAD+Sildenafil
1.0

Natty scale

1 natural · 10 heavy

1.0
3.0

Effectiveness

Documented effect · of 5Δ1

4.0
1.5

Side-effect severity

Documented burden · of 5Δ0.5

2.0

Cost side

Body-load fingerprint

Where each one actually lands its strain, on the calculator's thirteen channels. Tap a row for what it means and which labs track it.

NAD+Sildenafil

Systemic

Injection & site care

Bars show strain at each one's typical protocol, not your dose. ≈ marks values inferred from side-effect data or category rather than hand-graded. For your numbers, run the calculator.

Logistics

The vitals

NAD+Sildenafil
Ancillary
Classmatch
Ancillary
Intravenous
Route
Oral
250-1000 mg/weekTypically once per week as a single IV infusion or subcutaneous session (250-1000mg; IV is dripped over 1-4+ hours to avoid nausea/chest tightness, subq is given as one or several smaller shots). This weekly figure is maintenance dosing, some protocols (e.g. detox/addiction clinics) instead front-load with a short daily "loading" course of roughly 250-750mg/day IV for 3-10 days before tapering to a weekly maintenance dose.
Typical dose
25-100 mg/dayED: as-needed, ~1 hour before activity (30 min to 4 h window), maximum once daily. PAH (Revatio): a fixed schedule, commonly 20mg three times daily.
Not established
Half-life
~4 hours
4-12 weeks
Typical run
1-20 weeks
OTC supplement
Legal status
Prescription only
Not prohibited
WADAmatch
Not prohibited

Benefit side

What each is for

Shared goals carry both dots; a goal with one dot belongs to that side alone.

NAD+Sildenafil
LongevityHealthRecoveryPerformance

Run for

Cellular EnergySupports mitochondrial function and ATP production.
Anti-AgingMay slow aspects of cellular aging through sirtuin activation.
DNA RepairSupports DNA repair mechanisms.

Documented upside

  • Enhanced cellular energy
  • Improved mental clarity
  • Potential anti-aging effects
  • DNA repair support
  • Mitochondrial health

Run for

Erectile Dysfunction (FDA-approved)The original Viagra indication: improves blood-flow-dependent erectile function. Taken as-needed, typically about an hour before activity.
Erectile Function On CycleCounters cycle-related ED: from suppressive compounds ('deca dick' from nandrolone/trenbolone) or from crashed estrogen. A go-to support med, taken as-needed rather than daily.
Pulmonary Arterial Hypertension (FDA-approved)As Revatio, it lowers pulmonary arterial pressure and improves exercise tolerance in PAH, dosed on a fixed thrice-daily schedule (distinct from the as-needed ED use).
Pumps / Blood FlowEnhanced vasodilation gives fuller 'pumps'; some athletes use it hoping better muscle blood flow aids training, though efficacy is unclear and the effect is non-anabolic.

Documented upside

  • Reliable, fast-acting erectile-function support, including cycle-induced ED
  • Fast onset (roughly 20-30 minutes)
  • Improves blood flow / 'pumps'
  • FDA-approved and, since patent expiry, cheap as a generic
  • Non-hormonal; does not affect the HPTA

The downsides

Side effects, aligned

Each entry's documented side effects, sorted onto the same body systems so the gaps and the overlaps are visible. Tap any effect for the detail.

NAD+Sildenafil
Mood, sleep & CNS

None documented

Injection site

None documented

Other documented effects

The exit

Hormonal fallout & recovery

What each does to your own hormone axis while on, and what leaving it costs.

NAD+Sildenafil
Not required
PCT
Not required
Support role
What sticks
Support role

NAD+

Not hormonal. No PCT required.

Sildenafil

Not hormonal. No PCT required. It supports erectile function via blood flow but does not restore testosterone or fix the hormonal causes of low libido.

Read-out

How they separate

  1. 01

    Enhancement

    They land at almost the same point on the natty scale (1/10 vs 1/10): a similar distance beyond natural.

  2. 02

    Side-effect bill

    Sildenafil's documented side-effect severity is heavier (2/5 vs 1.5/5). The body-load fingerprint above shows where that weight actually lands.

  3. 03

    Body load

    The widest gap at typical protocols is mood & sleep (NAD+ 2.2/10 vs 0/10).

  4. 04

    Coming off

    Neither requires PCT: both leave the natural testosterone axis running.

  5. 05

    Logistics

    NAD+ runs as intravenous, Sildenafil as oral; typical runs are 4-12 weeks vs 1-20 weeks.

Generated from each entry's data file. Descriptive, not a recommendation; nothing here is medical advice.

Full breakdownNAD+→Full breakdownSildenafil→

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