L-Arginine (Sexual Function)
Amino Acid
Also known as: Arginine, L-Arg, Nitric oxide precursor
B
Grade B💊 3-6g daily for erectile support🎯 4 primary uses🔗 3 synergies⚠️ Review warnings
Overview
Amino acid that boosts nitric oxide for blood flow, supporting erectile function.
Primary Uses
Erectile functionBlood flowSexual responseNitric oxide
Dosage
Typical range
3-6g daily for erectile support
Timing
Divided doses, before sexual activity
With food
Away from food for better absorption
Duration
Ongoing for effect
Special Populations
Mild ED, cardiovascular support
Mechanism of Action
- • Precursor to nitric oxide
- • Increases blood flow
- • Supports erectile function
- • Also cardiovascular benefits
Evidence Quality
Evidence Grade B
Good evidence for mild erectile dysfunction
Safety & Contraindications
Serious Warnings
- • May activate herpes outbreaks
- • Low blood pressure risk
Contraindications
- • Recent heart attack
- • Herpes (may trigger)
- • Low blood pressure
Common Side Effects
- • GI upset
- • Diarrhea
- • Bloating
- • May activate herpes
Pregnancy & Breastfeeding
Consult healthcare provider
Liver & Kidney Notes
Safe
Interactions
💊 Medications
- • Blood pressure meds (additive)
- • PDE5 inhibitors (Viagra - caution)
- • Nitrates (avoid)
🧪 Supplements
- • Stacks with Pycnogenol (Prelox)
- • L-Citrulline converts to arginine
🍽️ Food & Alcohol
- • Away from protein meals
Stacking & Synergies
Pairs Well With
Pycnogenol (Prelox combo studied)L-CitrullineZinc
Avoid Combining With
NitratesPDE5 inhibitors without MD guidance
Best Goal Synergies
Erectile functionBlood flow
Buying Guide
What to Look For
- • L-form
- • Pure
Standardization Markers
L-Arginine amountForm (HCL, free-form)
Adulteration risk
Low
Practical Notes
- • May trigger herpes outbreaks
- • Prelox (with Pycnogenol) is studied combo
- • Also good for cardiovascular
Tags
nitric-oxideerectileblood-flowamino-acid
Frequently Asked About L-Arginine (Sexual Function)
How much L-Arginine (Sexual Function) should I take?
The typical effective range is 3-6g daily for erectile support. Individual needs vary based on age, body weight, diet, and goals — start at the lower end and adjust based on response. Always consult a healthcare provider before starting a new supplement.
When is the best time to take L-Arginine (Sexual Function)?
Divided doses, before sexual activity. Consistency matters more than perfect timing — pick a daily anchor (e.g. with breakfast or before bed) and stick with it.
Should I take L-Arginine (Sexual Function) with food?
Away from food for better absorption.
Does L-Arginine (Sexual Function) interact with medications?
Yes — known interactions include Blood pressure meds (additive), PDE5 inhibitors (Viagra - caution), and Nitrates (avoid). If you take any prescription medication, talk to your doctor or pharmacist before starting L-Arginine (Sexual Function).
What does L-Arginine (Sexual Function) pair well with?
L-Arginine (Sexual Function) stacks well with Pycnogenol (Prelox combo studied), L-Citrulline, and Zinc — these combinations either improve absorption or work synergistically toward common goals.
Who should not take L-Arginine (Sexual Function)?
L-Arginine (Sexual Function) should be avoided or used with caution by people with Recent heart attack, Herpes (may trigger), and Low blood pressure. Pregnant or breastfeeding women should consult a healthcare provider before use.
What are the side effects of L-Arginine (Sexual Function)?
Most people tolerate L-Arginine (Sexual Function) well. The most commonly reported side effects are GI upset, Diarrhea, and Bloating. Side effects are usually dose-dependent — lowering the dose often resolves them.
Educational content based on published research and our scoring methodology. Not medical advice — consult a qualified healthcare provider before starting, stopping, or changing supplements, especially if you take medications, are pregnant, or have a medical condition.