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Taking both these drugs should not be harmful. The effects of both drugs are likely to be reduced.

We strongly recommend you avoid taking these drugs together, reactions are highly unpredictable and can be fatal. You will likely come to some degree of harm even if you take strong precautions.

Taking both of these drugs together is not usually any more harmful than taking them individually. The drugs are not known to interact with each other, each positively or negatively.

Be careful when mixing amphetamines and GHB. Stimulants increase respiration rate allowing a higher dose of sedatives. If the stimulant wears off first then the opiate may overcome the patient and cause respiratory arrest.

There is no evidence to date showing interactions between allergy medicines and LSD. This combination is unlikely to cause an adverse or undesirable reaction when used carefully.

There is no evidence to date showing interactions between ibuprofen and 2C-B. This combination is unlikely to cause an adverse or undesirable reaction when used carefully.

Taking both these drugs together is likely to cause an effect stronger than taking them individually. If used with care they are unlikely to cause an adverse or undesirable reaction.

_Users report that the two herbs go well with each other, however, moderation is important when combining them. Keeping both doses low helps ensuring that you derive the highest possible positive effects without crossing the line to negative side-effects. You should go particularly light on cannabis dosage. Although rarely, some users report mild effects, such as feeling nauseous, sick and uncomfortable. Stronger side effects include anxiety and dizziness._

Taking both these drugs together may produce unpleasant effects such as physical discomfort or overstimulation. High doses put you at risk. If you mix, start low and go slow

Amphetamines and DMT is not usually a harmful combination but stimulants generally increase anxiety levels and the risk of thought loops which can lead to negative experiences.

Tricyclics (Amitriptyline, Anafranil, Asendin, Aventyl, Elavil, Endep, Norfranil, Norpramin, Pamelor, Sinequan, Surmontil, Tipramine, Tofranil, and Vivactil) is consistently reported as being very bad in combination with LSD. People attempting this combination are unable to communicate with others, they go into a fugue state where they wander away from home and don't know how they got there, and they are generally in a terrible state psychologically. Life-threatening seizures and at least one death have been reported to be triggered by the combination of LSD and tricyclics. If you are prescribed tricyclics for mental health problems, it is not a good idea to try LSD outside of a supervised medical setting, as it might worsen the symptoms.

Using these drugs together can cause an effect stronger than desired though they aren't likely to cause a serious adverse reaction if used carefully. Additional research should always be done before mixing drugs.

Cannabis and mushrooms is not usually a harmful combination, but cannabis has an unexpectedly strong and somewhat unpredictable synergy with psychedelics so beware when mixing these drugs.

The combination is unlikely to cause any adverse or undesirable reactions beyond those that might ordinarily be expected from taking these drugs individually. Users have reported diminished experiences thus care should be taken with dosage.

This combination carries a low risk. Ibuprofen and cannabis are unlikely to cause an adverse or undesirable reaction when used carefully and within the recommended dose.

There is a low risk when drinking a moderate amount of alcohol when using the recommended dose of aspirin.

Avoid alcohol if you are taking aspirin for a headache. Alcohol is likely to make a headache worse as it causes dehydration.

_Reactions and side effects are rare, but using these drugs together can cause an effect stronger than taking them individually, and they aren't likely to cause an adverse or undesirable reaction when used carefully. Kratom’s effects are due primarily to its interaction with mu-receptors in the brain, while SSRIs produce their effects by interacting with the serotonin receptors. It is hypothesized that, since both act on receptors that can sometimes be involved with each other in certain processes, an interaction may or may not occur. Interactions include risks such as_ [_serotonin syndrome_](https://www.mdedge.com/ccjm/article/120386/neurology/serotonin-syndrome-preventing-recognizing-and-treating-it)_. Additional research should always be done before mixing drugs._

There is no evidence to date showing interactions between ibuprofen and ketamine. This combination is unlikely to cause an adverse or undesirable reaction when used carefully.

Caffeine and GHB have low risk and decreased synergy. Caffeine will mildly hide the depressant effects of GHB leading to a slightly increased risk of overdose.

These combinations are not usually physically harmful, but may produce undesirable effects, such as physical discomfort or overstimulation. Extreme use may cause physical health issues. Be careful when mixing these drugs.

Effects will compound with each other, however, the effects of DMT will probably overpower that of 2C-B since it is a much more powerful hallucinogen.

Both drugs potentiate the sedation and impairment of coordinate caused by the other. High doses can lead to unexpected loss of consciousness

There is no evidence to date showing interactions between ibuprofen and modafinil. This combination is unlikely to cause an adverse or undesirable reaction when used carefully.

There is no evidence to date showing interactions between aspirin and LSD. This combination is unlikely to cause an adverse or undesirable reaction when used carefully.

There is no evidence to date showing interactions between contraceptive pills and cannabis and generally this combination carries a low risk. However, cannabis will often intensify and alter your mood. If your contraception is causing significant changes in your mood, it is advisable to avoid cannabis as it may intensify mood swings.

Avoid cannabis if you are taking allergy medicines. Benadryl, Piriton and Piriteze are known to have adverse effects when combined with cannabis.

Cannabis intensifies the drowsiness caused by the antihistamines in allergy medicines. Dizziness, confusion and difficulty concentrating may also occur as well as a reduction in judgements and motor coordination.

DMT and mushrooms are both psychedelics and will thus have additive effects when taken together. Be careful as the doses will quickly become overwhelming.

GHB and LSD is not usually a harmful combination, but it will tend to decrease the effects of both drugs.

Be careful when taking amphetamines (e.g. Adderall) and cocaine together. Both are stimulants, which increases the strain on your heart and places you at higher risk of overdosing. Cocaine will also mildly block the effects of the amphetamines4,21.

This combination carries a low risk. Paracetamol and cannabis are unlikely to cause an adverse or undesirable reaction when used carefully and within the recommended dose.

There is a low risk when drinking a moderate amount of alcohol when using the recommended dose of paracetamol.

Avoid alcohol if you are taking paracetamol for a headache. Alcohol is likely to make a headache worse as it causes dehydration.

DMT and opioids is an unsafe combination. Low doses seem to counter the effects of hallucinogens, whereas higher doses potentiate them. Be careful with tramadol as it is known to lower the seizure threshold and psychedelics can sometimes cause seizures. Read more [here](http://www.ncbi.nlm.nih.gov/pubmed/3006089).

Be careful when taking allergy meds and cocaine together. There is some evidence that certain allergy medications combined with cocaine can increase reinforcement (i.e. how strongly you feel the need to take more of the drug). Both have similar effects which puts at increased risk of overstimulation. If you mix, start low and go slow53-56.

Aspirin and MDMA taken together may cause a greater increase in body temperature and sweating than is normal. This poses the greatest risk when dancing in crowded conditions. Take a break periodically to cool down.

These combinations are considered extremely harmful and should always be avoided. Reactions to combining these drugs are highly unpredictable and can potentially cause death.

Tramadol lowers the seizure threshold and thus should not be combined with any psychedelics, MAOIs, amphetamines and substituted amphetamines, or other opioids.

Be careful when taking mushrooms and cocaine together. You may experience anxiety. Some of their physiological effects oppose each other which puts strain on your body and makes it easier for you to overdose, especially during the comedown. If you mix, start low and go slow41,42.

Cannabis and DMT is not usually a harmful combination, but cannabis has an unexpectedly strong and somewhat unpredictable synergy with psychedelics so beware when mixing these drugs.

Taking the combined oral contraceptive pill and cocaine together is not usually any more harmful than taking them individually. The drugs are not known to interact with each other, each positively or negatively46,47.

Alcohol and GHB is an unsafe combination. Even in very low doses this rapidly leads to memory loss, severe ataxia and unconsciousness. There is a high risk of vomit aspiration while unconscious.

Avoid benzos if you are taking allergy medicines. benzos and allergy medicines such as Benadryl, Piriton and Clarityn are depressants and both slow down your central nervous system. This can produce heightened side effects such as drowsiness, sedation and poor concentration. In extreme cases, loss of consciousness and may occur.

Using these drugs together can cause an effect stronger than taking them individually, and they aren't likely to cause an adverse or undesirable reaction when used carefully. Additional research should always be done before mixing drugs.

Effects will be stronger than taking either drug alone, however, it’s unlikely that there will be any adverse health reactions to this combination.

There is no evidence to date showing interactions between ibuprofen and benzos. This combination is unlikely to cause an adverse or undesirable reaction when used carefully and within the recommended dose.

Be careful when taking paracetamol and cocaine. Paracetamol may increase the harmful effects of cocaine on the liver4.

_Kratom leaves produce complex opioid-like analgesic effects, which could be potentiated with the use of ibuprofen._

Stimulants should not be combined with kratom, as they further increase the level of stimulation provided by the kratom. This results in the development of potentially severe side effects: anxiety, heart palpitations, excessive sweating, and general agitation. More life-threatening side effects that may result include: increased blood pressure. The lowering of the seizure threshold may also be observed.

[**Tramadol**](https://www.drugs.com/tramadol.html) can result in seizures when taken with LSD, as Tromadol lowers the seizure threshold.

These two drugs potentiate each other strongly and unpredictably which might lead to memory loss, blackout and respiratory depression.

Be careful when taking GHB with cocaine. Stimulants increase respiration rate allowing a higher dose of sedatives. If the stimulant wears off first then the opiate may overcome the patient and cause respiratory arrest. Likewise the G can wear off and leave a dangerous concentration of cocaine behind30,31.

Taking LSD and cocaine together is likely to cause overstimulation and anxiety. This combination will put strain on your heart and circulatory system and increase your risk of seizure. High doses will put you at risk. If you mix, start low and go slow37.

Cannabis and LSD is not usually a harmful combination, but cannabis has an unexpectedly strong and somewhat unpredictable synergy with psychedelics so beware when mixing these drugs.

2C-X and GHB is not usually a harmful combination, it will tend to decrease the effects of both drugs. Be careful as 2C-X has mild stimulant effects which can cover the depressant effects of GHB.

Be careful when taking these drugs together, there is a considerable risk of a bad experience or overdose. If you mix, start low and go slow.

We strongly recommend you avoid taking DXM and cocaine together. Your blood pressure and heart rate are likely to increase to dangerous levels. You are at increased risk of experiencing blackouts. You may also experience anxiety and panic attacks28,29.

There is no evidence to date showing interactions between paracetamol and MDMA. This combination is unlikely to cause an adverse or undesirable reaction when used carefully.

Interactions

Check how pairs of drugs interact with each other when consumed.