St. John's Wort Dosage Guide
Understanding your St. John's Wort (Hypericum perforatum extract) dose — strengths available, how dosage affects price, and what to do if your dose changes. Always follow the dose printed on your prescription label.
What dosage of St. John's Wort are you prescribed?
St. John's Wort comes in 2 common strengths. Here's the cash price for each on ScriptUnlock:
| St. John's Wort Strength | Retail Price | ScriptUnlock Cash | You Save |
|---|---|---|---|
| St. John's Wort 300mg capsule | $20 | $11 | $9 |
| St. John's Wort 450mg tablet | $23 | $13 | $10 |
Common St. John's Wort strengths
How dosage affects St. John's Wort price
For most medications including St. John's Wort, higher dose = higher price. This is because:
- More active pharmaceutical ingredient (API) per tablet — the API is usually the most expensive raw material.
- Lower-volume manufacturing runs for less common strengths.
- Higher patient demand for certain strengths shifts pricing.
Key dosing principles for St. John's Wort
- Always follow the dose printed on your prescription label — your prescriber selects it based on your individual case.
- Take St. John's Wort at the same time(s) each day to maintain consistent blood levels.
- Don't double up if you miss a dose unless your pharmacist confirms it's safe for St. John's Wort.
- Never change your St. John's Wort dose without talking to your prescriber first.
- Keep a brief log if your dose changes — it helps your prescriber adjust treatment.
Talk to your doctor before changing your St. John's Wort dose
Cost should never be a reason to skip doses, split tablets without approval, or stop St. John's Wort on your own. Many prescribers will adjust dose or formulation to help you afford the medication — they want you on therapy.
If cost is the issue: mention it to your prescriber. They may switch you to a different strength, generic equivalent, or 90-day supply that fits your budget. ScriptUnlock can help you find St. John's Wort at the lowest cash price near you.
St. John's Wort dose questions?
Talk to your pharmacist or prescriber. Don't split, double, or change your St. John's Wort dose on your own — some medications require careful titration and abrupt changes can cause withdrawal, rebound effects, or reduced efficacy.
Find the lowest St. John's Wort cash price
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St. John's Wort dosage FAQs
What is the standard dosage for St. John's Wort?
Does the dosage of St. John's Wort affect the price?
Can I get a lower dose of St. John's Wort to reduce cost?
What is St. John's Wort 300mg capsule used for?
More St. John's Wort questions
What is the typical dose of St. John's Wort?
St. John's Wort dose depends on the condition being treated, your age, weight, kidney/liver function, and individual response. Your prescriber will select the dose most likely to give you benefit with the fewest side effects. Always follow the dose printed on your prescription label.
How often should I take St. John's Wort?
Dosing frequency for St. John's Wort is set by your prescriber and printed on the dispensing label. Some medications are once-daily; others are split into 2-4 daily doses. Take it at the same time(s) each day to maintain consistent blood levels.
What if I miss a St. John's Wort dose?
If you miss a St. John's Wort dose, take it as soon as you remember unless it's nearly time for the next dose. Never double up to make up for a missed dose. If you miss multiple doses, contact your prescriber or pharmacist.
Can I take more St. John's Wort if it doesn't feel like it's working?
No — never increase your St. John's Wort dose on your own. If the prescribed dose isn't giving the expected effect, contact your prescriber. Many medications take days to weeks to show full effect at a given dose.
Where can I find the lowest cash price for St. John's Wort?
Cash prices for St. John's Wort vary significantly between pharmacies. ScriptUnlock compares participating pharmacies in real time so you pay the lowest available — no insurance, no membership.