All 14 FDA-Approved ADHD Medications: Phase Timing Cheat Sheet

A diagnosis often arrives with a printout of drug names, and if you are newly diagnosed, that page can read like alphabet soup: Ritalin, Concerta, Vyvanse, Strattera, Adderall, Qelbree, and a dozen more. There are 14 FDA-approved active ingredients for ADHD, and they collapse into three groups: methylphenidate, amphetamine, and non-stimulants. This is the full FDA approved ADHD medications list, organized by the shape of your day rather than by brand name: when a med comes on (Onset), how long it holds (Active), and when it fades (Wearing Off).

If the word “drugs” still feels heavy, that is normal too. The fear of losing your personality, or of getting hooked, is one most people carry into the pharmacy. Seeing the whole field laid out by how it behaves, hour by hour, tends to make it feel less like a gamble and more like a set of tools with knowable timing.

The whole list collapses into three groups

Every FDA-approved ADHD stimulant is one of two molecules: methylphenidate or amphetamine. After decades of new formulations, those are still the only two stimulant families in the pharmacy.^[3] The long-acting era stretched coverage from about four hours on the earliest immediate-release tablets to up to twelve on today’s once-daily formulations.^[8] Anything with XR, LA, CD, ER, or SR after its name is a delivery system wrapped around one of those two, a different way of releasing the same chemical over time. The third group, the non-stimulants, works on a separate mechanism and a separate clock.

The one-line difference between the two stimulant families: both methylphenidate and amphetamine raise dopamine and norepinephrine by blocking their reuptake, so more stays active in the synapse. Amphetamines add one move on top of that, pushing extra neurotransmitter out of storage, which is why they are often described as slightly stronger and slightly longer-lasting than an equivalent methylphenidate dose.^[3] Neither is better across the board; response is individual.

Counted by active ingredient, the list lands at 14. Counted by brand, it runs well past 30, because most ingredients ship under several names. That gap is why the printout feels overwhelming and why sorting by chemistry and timing makes it manageable.

“Cool, 14 meds, all with different names for the same two chemicals. My pharmacist could not explain the difference between Concerta and Ritalin LA and now I’m supposed to?”

The difference between Concerta and Ritalin LA is not the drug. Both are methylphenidate. The difference is the release curve, which is what the tables below are built to show.

Methylphenidate medications, shortest to longest

Methylphenidate is the older of the two stimulant families and the more commonly prescribed. Immediate-release versions come on in about 30 to 45 minutes; the long-acting versions trade a slower Onset for a longer Active phase on a single morning dose.^[6],[7]

Active ingredient	Common brands	Onset	Approx. duration	Notes
Methylphenidate (IR)	Ritalin, Methylin	~30–45 min	~3–4 h	The original ADHD med; shortest Active phase
Dexmethylphenidate (IR)	Focalin	~30–45 min	~4–6 h	Refined single-isomer methylphenidate
Methylphenidate (LA/ER)	Ritalin LA, Aptensio XR, Metadate CD, Quillivant XR (liquid)	~60–90 min	~7–8 h	Once-daily; Quillivant is a liquid for flexible dosing
Dexmethylphenidate XR	Focalin XR	~30–60 min	~8–9 h	Two-pulse capsule (about half now, half later)
Methylphenidate (osmotic ER)	Concerta	~60 min	~10–12 h	Osmotic pump releases a gradually rising dose all day[2]
Serdexmethylphenidate + dexmethylphenidate	Azstarys	~30–60 min	~10–13 h	A methylphenidate prodrug paired with an IR portion
Methylphenidate (delayed release)	Jornay PM	Taken the evening before	Next-day coverage	Dosed at night so it is working by morning
Methylphenidate (transdermal)	Daytrana	~2 h after applying	While worn, plus a few hours	A patch; removing it starts the wind-down

The Concerta row is worth a note for anyone who has felt it fade earlier than the label suggests. That 10-to-12-hour figure is a design target, not a promise, and the real number is personal. We wrote about that gap in the Concerta 12-hour myth.

Amphetamine medications, shortest to longest

Amphetamines cover the same range, shortest to longest, with the family’s slightly higher potency baked in. Same columns, same logic.^[6],[7]

Active ingredient	Common brands	Onset	Approx. duration	Notes
Mixed amphetamine salts / amphetamine (IR)	Adderall, Dexedrine, Evekeo, Zenzedi	~30–45 min	~4–6 h	Short-acting; a bit stronger and longer than IR methylphenidate
Amphetamine (liquid / ODT, ER)	Dyanavel XR, Adzenys XR-ODT	~60 min	~10–12 h	Liquid or dissolvable tablet for once-daily coverage
Dextroamphetamine (transdermal)	Xelstrym	~2 h after applying	While worn	A patch; the amphetamine equivalent of Daytrana
Mixed amphetamine salts XR	Adderall XR	~30–60 min	~8–12 h	Two-pulse capsule; FDA lists peak plasma level (Tmax) around 7 h[1]
Lisdexamfetamine	Vyvanse	~60–90 min	~10–14 h	Prodrug with a slow rise and gentle fade
Mixed amphetamine salts (triple-bead)	Mydayis	~60 min	Up to ~16 h	The longest-running stimulant on the list
Methamphetamine	Desoxyn	~30–45 min	~4–6 h	FDA-approved for ADHD, rarely prescribed

That last row surprises people. Methamphetamine is a real FDA-approved ADHD medication under the brand Desoxyn. The therapeutic dose is around 10 mg, roughly 1/1200th of a typical abused dose, which is a different situation from the street version.^[9] Few physicians reach for it, but a complete list includes it.

Why two amphetamines can feel completely different (Vyvanse vs. Adderall XR)

Two meds in the same family, both amphetamine, can produce different days. The clearest example is Vyvanse next to Adderall XR.

Vyvanse is a prodrug, meaning it arrives inert. Your body has to cleave a lysine molecule off before any active d-amphetamine is released, and that conversion happens gradually. The result is a slow rise, a flatter peak, and a gentler fade, with less variation from one dose to the next.^[5] Adderall XR takes a different route: it is a two-pulse capsule that releases about half the dose up front and half a few hours later, which can produce a noticeable mid-day bump rather than one smooth arc. Focalin XR is built the same two-pulse way.

One trap for switchers: you cannot compare these by milligrams. Roughly 30 mg of Vyvanse lines up with about 10 mg of Adderall XR, so the number on the new bottle tells you almost nothing about how it will land. If you are weighing the difference in wear-off feel, we compared them directly in the Vyvanse crash vs. Adderall crash guide.

“Switching from IR Adderall to Vyvanse next week and I’m lowkey terrified it just won’t work. My afternoons are already a wasteland at like 2pm.”

Moving from a short-acting med to a longer, smoother one is one of the most common adjustments in ADHD care. The afternoon wasteland at 2pm is often the short-acting Wearing Off phase showing up right on schedule, which is what a longer-acting option is designed to cover.

Non-stimulants run on a different clock

The four non-stimulants break the phase model, and knowing that going in spares you weeks of second-guessing. Atomoxetine (Strattera), viloxazine ER (Qelbree), guanfacine ER (Intuniv), and clonidine ER (Kapvay) do not have an Onset, Active, or Wearing Off phase. They build up over several weeks and then hold steady across roughly 24 hours, with no daily kick-in and no daily fade.^[4]

Medication	Type	Time to full effect	Daily pattern
Atomoxetine (Strattera)	Norepinephrine reuptake inhibitor	~2–6 weeks	Steady ~24 h; no kick-in or wear-off
Viloxazine ER (Qelbree)	Norepinephrine modulator	~1–4 weeks	Steady daily coverage
Guanfacine ER (Intuniv)	Alpha-2 agonist	Several weeks	Gradual, steady; unlikely to feel like a stimulant
Clonidine ER (Kapvay)	Alpha-2 agonist	Several weeks	Steady; sometimes used alongside a stimulant

If you are new to these, do not sit around on day two waiting to feel a switch flip. There is no moment to catch. The change tends to show up as a gradual, week-over-week shift in how the day goes, which is a different experience from a stimulant coming online in 40 minutes.

“Nobody warned me Strattera doesn’t ‘kick in.’ I kept waiting to feel something for two weeks and thought it was broken. Turns out that’s just how it works?”

That is how it works. A non-stimulant that feels like nothing on day 10 can be doing its job on the timeline it was built for. This is also why the non-stimulants get their own table here and never sit on the phase bar with the stimulants: putting them on the same Onset-Active-Wearing Off visual would tell you something false about how they behave.

How to read your own timing

Every duration in these tables carries a quiet caveat: give or take about 2 hours on each end. How long a stimulant lasts depends on how your body metabolizes it, so the same 30 mg can run 8 hours for one person and 12 for another. The label range describes a population average, and your body keeps its own schedule.^[6]

That variability is the reason a chart alone cannot finish the job. The useful number is the one you observe: when your med reliably comes on, how long you stay in your Active window, and when Wearing Off tends to start for you. If your med seems to fade sooner than the box promised, the box was always an average, and your metabolism is doing its own thing. We covered the common reasons in why your ADHD meds wear off faster than expected, and mapped a full stimulant day in the hour-by-hour medication timeline.

An ADHD medication comparison chart like this one gives you the label’s best estimate. Get Zesty!‘s phase dial, an ADHD medication tracker, shows your actual Onset, Active, and Wearing Off built from the days you log, so the timing you plan around is yours rather than a population average. Logging every dose is a hard ask for an ADHD brain, and even rough, occasional tracking is enough to start seeing your real pattern.

References

1. ¹ FDA, "Adderall XR Prescribing Information" (2023) — U.S. Food and Drug Administration
2. ² FDA, "Concerta Prescribing Information" (2017) — U.S. Food and Drug Administration
3. ³ "Methylphenidate" — StatPearls, NCBI Bookshelf (NBK482451)
4. ⁴ "Atomoxetine" — StatPearls, NCBI Bookshelf (NBK493234)
5. ⁵ "Lisdexamfetamine Dimesylate: Prodrug Delivery, Amphetamine Exposure and Duration of Efficacy" — PMC4823324
6. ⁶ "Short-Acting vs. Long-Acting Stimulants" — ADDitude Magazine
7. ⁷ "Understanding ADHD Medications" — Child Mind Institute
8. ⁸ Hallowell & Ratey, ADHD 2.0 — Ballantine Books, 2021
9. ⁹ "ADHD Medication Management: How to Use and Adjust Stimulants Safely" (William Dodson, MD) — ADDitude Magazine