PlainPill

Magnesium vs Phenibut for anxiety

Short answer: For anxiety, users rate them about the same: 89% report improvement with Magnesium (226 reports) and 87% with Phenibut (297 reports).

Magnesium has 82 meta-analyses and 210 randomized trials on PubMed; Phenibut has 3 and 1.

Based on 1,893 reports about Magnesium and 740 about Phenibut. Not medical advice.

Magnesium
Supplement
Phenibut
Substance
User score5150
Verdict
Mostly positive
Mixed
Positive
of reports that state an outcome
72%44%
Reports1,893740
ResearchAResearch: StrongBResearch: Moderate
Meta-analyses / RCTs82 / 2103 / 1
Mainly used for
Appetite
% reporting improvement
100% (2)—
Focus
% reporting improvement
77% (39)69% (36)
Energy
% reporting improvement
75% (73)79% (28)
Sleep
% reporting improvement
87% (331)84% (64)
Anxiety
% reporting improvement
89% (226)87% (297)
Mood
% reporting improvement
80% (99)89% (131)
Memory
% reporting improvement
100% (7)50% (4)
Performance
% reporting improvement
87% (15)100% (5)
Recovery
% reporting improvement
96% (24)—
Pain & inflammation
% reporting improvement
91% (33)50% (2)
Digestion
% reporting improvement
83% (29)—
Libido
% reporting improvement
62% (13)81% (16)
Hormones
% reporting improvement
91% (22)—
Blood sugar
% reporting improvement
100% (3)—
Heart & lipids
% reporting improvement
95% (22)—
Skin & hair
% reporting improvement
100% (2)—
Immunity
% reporting improvement
86% (7)—
Longevity
% reporting improvement
100% (3)—
Common side effectsdiarrhea, drowsiness, stomach issues, vivid dreamswithdrawal, addiction, tolerance, dependence
Typical dose reporteddailyevery 3 days
Magnesium
Latest review conclusion

This review confirms that the quality of literature is substandard for physicians to make well-informed recommendations on usage of oral magnesium for older adults with insomnia. However, given that oral magnesium is very cheap and widely available, RCT evidence may support oral magnesium supplements (less than 1 g quantities given up to three times a day) for insomnia symptoms.

BMC Complement Med Ther, 2021 ↗
What a user said
“after supplementing with 400mg of Magnesium daily. Winter blues hit me hard and my multivitamin wasn't doing any justice, but once I began supplementing Magnesium, everything changed.”
Full Magnesium profile →
Phenibut
Latest review conclusion

Phenibut withdrawal appears to have a range of severity. It is important to recognize that patients undergoing phenibut abstinence may have progressive symptom worsening during early withdrawal. All published cases of abrupt phenibut abstinence were admitted inpatients for symptom management. Benzodiazepines or barbiturates with adjunctive baclofen appear to be the most commonly used drugs for moderate to severe withdrawal. Outpatient management via slow phenibut tapers with or without adjunctive gamma-aminobutyric acid agonist therapy may be successful. However, there is no standard treatment

Clin Toxicol (Phila), 2023 ↗
What a user said
“Phenibut every 3 days. Hands down most effective I've tried. Plus you wake up feeling amazing.”
Full Phenibut profile →

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Percentages come from first-hand user reports and are not clinical outcomes. Talk to a doctor before starting, stopping or combining anything. How we rate