Mixing Lithium and Methylphenidate (Ritalin)

Low risk, no synergy

Neither substance is expected to meaningfully change the other. Both still carry their own individual risks.

Do this

Treat each one as if you had taken it alone: its own dose, its own risks.

Reported

Lithium may be neuroprotective when taken with amphetamines and lithium may decrease the hyperactive and euphoric effects of amphetamines. Lithium may also decrease some negative side effects of amphetamines. Studies indicate this combination is safe.

General answer for Amphetamines: nothing specific to these two is documented.

What “Low risk, no synergy” means

Neither substance is expected to meaningfully change the other. Both still carry their own individual risks.

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Other names
Lithium
lithium carbonate, lithobid, mood stabilizer
Methylphenidate
ritalin, ritalin la, concerta, focalin, dexmethylphenidate, methylin
Not an amphetamine, but mixes much like one — most answers here are Adderall's
Also searched aslithium and Ritalin, lithium and ritalin la
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Related combinations

Lithium withWhat not to mix with Lithium →
Methylphenidate withWhat not to mix with Methylphenidate →
All combinations →

Can you mix Lithium and Methylphenidate (Ritalin)?

MixSafe rates mixing Lithium and Methylphenidate as "Low risk, no synergy" — neither substance is expected to meaningfully change the other. Both still carry their own individual risks. No interaction specific to Lithium and Methylphenidate is documented; this is the default for Amphetamines. Source: TripSit drug combination chart, retrieved 2026-08-20. Educational information, not medical advice.

This is a class-level answer, inherited from Amphetamines. Nothing specific to this exact pair is documented, so treat it as the default for the class rather than a measurement of these two drugs together.